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Vander Elst N, Bellemans J, Lavigne R, Briers Y, Meyer E. Endolysin NC5 improves early cloxacillin treatment in a mouse model of Streptococcus uberis mastitis. Appl Microbiol Biotechnol 2024; 108:118. [PMID: 38204128 PMCID: PMC10781846 DOI: 10.1007/s00253-023-12820-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 12/07/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024]
Abstract
Streptococcus uberis frequently causes bovine mastitis, an infectious udder disease with significant economic implications for dairy cows. Conventional antibiotics, such as cloxacillin, sometimes have limited success in eliminating S. uberis as a stand-alone therapy. To address this challenge, the study objective was to investigate the VersaTile engineered endolysin NC5 as a supplemental therapy to cloxacillin in a mouse model of bovine S. uberis mastitis. NC5 was previously selected based on its intracellular killing and biofilm eradicating activity. To deliver preclinical proof-of-concept of this supplemental strategy, lactating mice were intramammarily infected with a bovine S. uberis field isolate and subsequently treated with cloxacillin (30.0 μg) combined with either a low (23.5 μg) or high (235.0 μg) dose of NC5. An antibiotic monotherapy group, as well as placebo treatment, was included as controls. Two types of responders were identified: fast (n = 17), showing response after 4-h treatment, and slow (n = 10), exhibiting no clear response at 4 h post-treatment across all groups. The high-dose combination therapy in comparison with placebo treatment impacted the hallmarks of mastitis in the fast responders by reducing (i) the bacterial load 13,000-fold (4.11 ± 0.78 Δlog10; p < 0.001), (ii) neutrophil infiltration 5.7-fold (p > 0.05), and (iii) the key pro-inflammatory chemokine IL-8 13-fold (p < 0.01). These mastitis hallmarks typically followed a dose response dependent on the amount of endolysin added. The current in vivo study complements our in vitro data and provides preclinical proof-of-concept of NC5 as an adjunct to intramammary cloxacillin treatment. KEY POINTS: • Engineered endolysin NC5 was preclinically evaluated as add-on to cloxacillin treatment. • Two types of mice (slow and fast responding) were observed. • The add-on treatment decreased bacterial load, neutrophil influx, and pro-inflammatory mediators.
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Affiliation(s)
- Niels Vander Elst
- Laboratory of Gene Technology, Department of Biosystems, Faculty of Bioscience Engineering, KU Leuven, Kasteelpark Arenberg 21, 3001, Heverlee, Belgium.
- Laboratory of Applied Biotechnology, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, 9000, Ghent, Belgium.
- Laboratory of Biochemistry, Department of Veterinary and Biosciences, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
| | - Julie Bellemans
- Laboratory of Applied Biotechnology, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, 9000, Ghent, Belgium
- Laboratory of Biochemistry, Department of Veterinary and Biosciences, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Rob Lavigne
- Laboratory of Gene Technology, Department of Biosystems, Faculty of Bioscience Engineering, KU Leuven, Kasteelpark Arenberg 21, 3001, Heverlee, Belgium
| | - Yves Briers
- Laboratory of Applied Biotechnology, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, 9000, Ghent, Belgium
| | - Evelyne Meyer
- Laboratory of Biochemistry, Department of Veterinary and Biosciences, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
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Wang Y, Zhao Y, Tang X, Nan X, Jiang L, Wang H, Liu J, Yang L, Yao J, Xiong B. Nutrition, gastrointestinal microorganisms and metabolites in mastitis occurrence and control. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2024; 17:220-231. [PMID: 38800734 PMCID: PMC11126769 DOI: 10.1016/j.aninu.2024.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 01/02/2024] [Accepted: 01/23/2024] [Indexed: 05/29/2024]
Abstract
Mastitis affects almost all mammals including humans and dairy cows. In the dairy industry, bovine mastitis is a disease with a persistently high incidence, causing serious losses to the health of cows, the quality of dairy products, and the economy of dairy farms. Although local udder infection caused by the invasion of exogenous pathogens into the mammary gland was considered the main cause of mastitis, evidence has been established and continues to grow, showing that nutrition factors and gastrointestinal microbiome (GM) as well as their metabolites are also involved in the development of mammary inflammatory response. Suboptimal nutrition is recognized as a risk factor for increased susceptibility to mastitis in cattle, in particular the negative energy balance. The majority of data regarding nutrition and bovine mastitis involves micronutrients. In addition, the dysbiotic GM can directly trigger or aggravate mastitis through entero-mammary gland pathway. The decreased beneficial commensal bacteria, lowered bacterial diversity, and increased pathogens as well as proinflammatory metabolites are found in both the milk and gastrointestinal tract of mastitic dairy cows. This review discussed the relationship between the nutrition (energy and micronutrient levels) and mastitis, summarized the role of GM and metabolites in regulating mastitis. Meanwhile, several non-antibiotics strategies were provided for the prevention and alleviation of mastitis, including micronutrients, probiotics, short-chain fatty acids, high-fiber diet, inulin, and aryl hydrocarbon receptor.
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Affiliation(s)
- Yue Wang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Yiguang Zhao
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xiangfang Tang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xuemei Nan
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Linshu Jiang
- Beijing Key Laboratory for Dairy Cow Nutrition, Beijing University of Agriculture, Beijing 102206, China
| | - Hui Wang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jun Liu
- Langfang Academy of Agriculture and Forestry, Langfang 065000, China
| | - Liang Yang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Junhu Yao
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Benhai Xiong
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
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Song X, Wang Y, Bai R, Pei X, Xu H, Zhu K, Wu C. Antimicrobial resistance profiles of common mastitis pathogens on large Chinese dairy farms. JDS COMMUNICATIONS 2024; 5:185-189. [PMID: 38646569 PMCID: PMC11026961 DOI: 10.3168/jdsc.2023-0413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 11/18/2023] [Indexed: 04/23/2024]
Abstract
The primary objective of this study was to determine the antimicrobial resistance (AMR) profile of common mastitis pathogens on large Chinese dairy farms. A total of 673 isolates, including Staphylococcus aureus (14.41%, 97/673), coagulase-negative staphylococci (CNS, 52.30%, 352/673), Streptococcus agalactiae (5.64%, 38/673), non-agalactiae streptococci (7.42%, 50/673), Acinetobacter spp. (7.72%, 52/673), Escherichia spp. (6.39%, 43/673), and Klebsiella spp. (6.09%, 41/673), were collected from 15 large Chinese dairy farms in 12 provinces. The AMR profiles were measured using a microdilution method. Our results showed that more than 75% of Staph. aureus (87/97) and CNS (291/352) were resistant to penicillin (PEN). More than 30% of Escherichia spp. (15/43) showed resistance to ampicillin (AMP). However, less than 10% CNS and non-agalactiae streptococci showed resistance to amoxicillin/clavulanate (AMC; 1/352; 0/50), cephalexin (LEX; 1/352; 0/50), ceftiofur (EFT; 10/352; 0/50), and rifaximin (RIX; 21/352; 2/50); less than 10% Staph. aureus showed resistance to AMC (1/97), oxacillin (OX; 3/97), LEX (1/97), EFT (2/97), and RIX (2/97); less than 10% Strep. agalactiae showed resistance to PEN (3/38), AMC (0/38), LEX (0/38), EFT (0/38), and RIX (0/38); and less than 10% Escherichia spp. showed resistance to AMC (1/43) and EFT (4/43). These results suggested that most mastitis pathogens were susceptible to most antimicrobials with exceptions of Staph. aureus tested against penicillin or ampicillin and CNS against penicillin or oxacillin. To control the AMR threat in Chinese dairy farms, a nationwide surveillance program for AMR of bovine mastitis pathogens is needed.
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Affiliation(s)
- Xiangbin Song
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, PR China
- Shandong Provincial Key Laboratory of Quality Safety Monitoring and Risk Assessment for Animal Products, Shandong Center for Quality Control of Feed and Veterinary Drug, Jinan 250100, PR China
| | - Yaxin Wang
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, PR China
| | - Rina Bai
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, PR China
| | - Xiaoyan Pei
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co. Ltd., Hohhot 010110, PR China
| | - Hongyan Xu
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co. Ltd., Hohhot 010110, PR China
| | - Kui Zhu
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, PR China
| | - Congming Wu
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, PR China
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Peña-Mosca F, Dean C, Fernandes L, Doster E, Sharpe K, Ray T, Feijoo V, Antunes A, Baumann C, Wehri T, Heins B, Pinedo P, Machado V, Noyes N, Caixeta L. Associations between early lactation intramammary infections and udder health and performance during the first 180 days in milk in first-lactation organic dairy cows. J Dairy Sci 2024; 107:2426-2443. [PMID: 37923212 DOI: 10.3168/jds.2023-23924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 10/10/2023] [Indexed: 11/07/2023]
Abstract
Prior data from our group showed that first-lactation cows under organic management in United States have a high prevalence of Staphylococcus aureus, Streptococcus spp., and Staphylococcus chromogenes intramammary infections (IMI) in early lactation. Nonetheless, the relationship between IMI, udder health, and milk production in organically reared primiparous cows remains elusive. The objectives of this observational study were to investigate the relationship between presence and persistence of IMI in the first 35 d in milk (DIM) and somatic cell count (SCC) and milk production during the first 6 mo of lactation on first-lactation organic dairy cows. The analysis included a total of 1,348 composite milk samples collected during the first 35 DIM that were submitted for milk culture and 1,674 Dairy Herd Improvement Association (DHIA) tests during the first 180 DIM from 333 heifers in 4 organic dairy farms, enrolled between February 2019 and January 2020. The association between IMI in the first 35 DIM and new high SCC (SCC > 200,000 cells/mL) and milk production during the first 6 mo of lactation was investigated using Cox proportional hazards regression and mixed linear regression, respectively. The association between IMI persistence (harboring the same microorganism as reported by the laboratory for 2 or more samples) in the first 35 DIM and number of DHIA tests with high SCC during the first 6 mo of lactation was modeled using negative binomial regression. The presence of IMI by Staph. aureus (hazard ratio [HR] [95% confidence interval {CI}]: 3.35 [2.64, 4.25]) or Streptococcus spp. (HR [95% CI]: 2.25 [2.12, 2.39]) during the first 35 DIM was associated with an increased risk of new high SCC during the first 6 mo of lactation. Milk production was reduced when Streptococcus spp. were identified in milk samples. However, there was no evidence of a difference in milk production in Staph. aureus IMI. Isolation of non-aureus staphylococci and mammaliicocci was related to a mild increase in the hazards of high SCC (HR [95% CI]: 1.34 [0.97, 1.85]) and a decrease in milk production during one or more postpartum tests. Presence of gram-negative or Streptococcus-like organisms IMI was not associated with either high SCC or milk production. Presence of Bacillus IMI was associated with a lower hazard of new high SCC (HR [95% CI]: 0.45 [0.30, 0.68]), and higher milk production during the first 180 d of lactation (overall estimate [95% CI]: 1.7 kg/d [0.3, 3.0]). The persistence of IMI in the first 35 DIM was associated with the number of tests with high SCC during the lactation for all microorganisms except for Staphylococcus chromogenes. Therefore, our results suggest that the persistence of IMI in the first 35 DIM could be an important factor to understand the association between IMI detected in early lactation and lactational SCC and milk production in organic dairy heifers. Our study described associations between IMI, udder health, and milk production in first-lactation organic dairy cows that are consistent with findings from conventional dairy farms.
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Affiliation(s)
- Felipe Peña-Mosca
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN 55108
| | - Chris Dean
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN 55108
| | - Leticia Fernandes
- Department of Veterinary Sciences, Texas Tech University, Lubbock, TX 79409
| | - Enrique Doster
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN 55108; Department of Animal Sciences, Colorado State University, Fort Collins, CO 80521
| | - Kirsten Sharpe
- Department of Animal Science, University of Minnesota, St. Paul, MN 55108
| | - Tui Ray
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN 55108
| | - Victoria Feijoo
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN 55108
| | - Acir Antunes
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN 55108
| | - Carol Baumann
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN 55108
| | - Thomas Wehri
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN 55108
| | - Bradley Heins
- Department of Animal Science, University of Minnesota, St. Paul, MN 55108
| | - Pablo Pinedo
- Department of Animal Sciences, Colorado State University, Fort Collins, CO 80521
| | - Vinicius Machado
- Department of Veterinary Sciences, Texas Tech University, Lubbock, TX 79409
| | - Noelle Noyes
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN 55108
| | - Luciano Caixeta
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN 55108.
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Xue Y, Gao Y, Guo M, Zhang Y, Zhao G, Xia L, Ma J, Cheng Y, Wang H, Sun J, Wang Z, Yan Y. Phage cocktail superimposed disinfection: A ecological strategy for preventing pathogenic bacterial infections in dairy farms. ENVIRONMENTAL RESEARCH 2024; 252:118720. [PMID: 38537740 DOI: 10.1016/j.envres.2024.118720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/28/2024] [Accepted: 03/12/2024] [Indexed: 04/06/2024]
Abstract
Bovine mastitis (BM) is mainly caused by bacterial infection that has a highly impact on dairy production, affecting both economic viability and animal well-being. A cross-sectional study was conducted in dairy farms to investigate the prevalence and antimicrobial resistance patterns of bacterial pathogens associated with BM. The analysis revealed that Staphylococcus (49%), Escherichia (16%), Pseudomonas (11%), and Klebsiella (6%) were the primary bacterial pathogens associated with mastitis. A significant proportion of Staphylococcus strains displayed multiple drug resistance. The use of disinfectants is an important conventional measure to control the pathogenic bacteria in the environment. Bacteriophages (Phages), possessing antibacterial properties, are natural green and effective disinfectants. Moreover, they mitigate the risk of generating harmful disinfection byproducts, which are commonly associated with traditional disinfection methods. Based on the primary bacterial pathogens associated with mastitis in the investigation area, a phage cocktail, named SPBC-SJ, containing seven phages capable of lysing S. aureus, E. coli, and P. aeruginosa was formulated. SPBC-SJ exhibited superior bactericidal activity and catharsis effect on pollutants (glass surface) compared to chemical disinfectants. Clinical trials confirmed that the SPBC-SJ-based superimposed disinfection group (phage combined with chemical disinfectants) not only cut down the dosage of disinfectants used, but significantly reduced total bacterial counts on the ground and in the feeding trough of dairy farms. Furthermore, SPBC-SJ significantly reduced the abundance of Staphylococcus and Pseudomonas in the environment of the dairy farm. These findings suggest that phage-based superimposed disinfection is a promising alternative method to combat mastitis pathogens in dairy farms due to its highly efficient and environmentally-friendly properties.
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Affiliation(s)
- Yibing Xue
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai 201100, China
| | - Ya Gao
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai 201100, China
| | - Mengting Guo
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai 201100, China
| | - Yumin Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai 201100, China
| | - Guoqing Zhao
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai 201100, China
| | - Lu Xia
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai 201100, China
| | - Jingjiao Ma
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai 201100, China
| | - Yuqiang Cheng
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai 201100, China
| | - Hengan Wang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai 201100, China
| | - Jianhe Sun
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai 201100, China
| | - Zhaofei Wang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai 201100, China.
| | - Yaxian Yan
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai Key Laboratory of Veterinary Biotechnology, Shanghai 201100, China.
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Tomes A, Archer N, Leigh J. Reproducible isolation of bovine mammary macrophages for analysis of host pathogen interactions. BMC Vet Res 2024; 20:96. [PMID: 38461248 PMCID: PMC10924389 DOI: 10.1186/s12917-024-03944-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 02/19/2024] [Indexed: 03/11/2024] Open
Abstract
BACKGROUND Macrophages residing in milk are vital during intramammary infections. This study sought to develop a method enabling the investigation of macrophage responses to pathogens. Streptococcus uberis is the predominant cause of bovine mastitis UK-wide and its pathogenesis is unusual compared to other intramammary pathogens. Previous studies utilise macrophage cell lines, isolated bovine blood derived monocytes, or macrophages from raw milk through complex or inconsistent strategies such as fluorescence activated cell sorting (FACS), centrifugation and selective adherence, and CD14 antibody-microbeads. The centrifuge steps required in the initial stages often damage cells. Thus, the aim of this study was to develop a reliable, reproducible, and cost-effective method for isolating mammary macrophages from milk in a way that allows their culture, challenge with bacteria, and measurement of their response ex-vivo. RESULTS This method achieves an average yield of 1.27 × 107 cells per litre of milk. Whole milk with somatic cell range of 45-65 cells/µL produced excellent yields, with efficient isolations accomplished with up to 150 cells/µL. This strategy uses milk diluted in PAE buffer to enable low-speed centrifugation steps followed by seeding on tissue-culture-treated plastic. Seeding 1,000,000 milk-extracted cells onto tissue culture plates was sufficient to obtain 50,000 macrophage. Isolated macrophage remained responsive to challenge, with the highest concentration of IL-1β measured by ELISA at 20 h after challenge with S. uberis. In this model, the optimal multiplicity of infection was found to be 50:1 bacteria:macrophage. No difference in IL-1β production was found between macrophages challenged with live or heat-killed S. uberis. Standardisation of the production of IL-1β to that obtained following macrophage stimulation with LPS allowed for comparisons between preparations. CONCLUSIONS A cost-effective method, utilising low-speed centrifugation followed by adherence to plastic, was established to isolate bovine mammary macrophages from raw milk. This method was shown to be appropriate for bacterial challenge, therefore providing a cost-effective, ex-vivo, and non-invasive model of macrophage-pathogen interactions. The optimal multiplicity of infection for S. uberis challenge was demonstrated and a method for standardisation against LPS described which removes sample variation. This robust method enables, reproducible and reliable interrogation of critical pathogen-host interactions which occur in the mammary gland.
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Affiliation(s)
- Abbie Tomes
- School of Veterinary Medicine and Science, University of Nottingham, Nottingham, UK
| | - Nathan Archer
- School of Veterinary Medicine and Science, University of Nottingham, Nottingham, UK
| | - James Leigh
- School of Veterinary Medicine and Science, University of Nottingham, Nottingham, UK.
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GOTO S, MIKAMI O, NAGASAWA Y, WATANABE A. Bovine neutrophils stimulated with Streptococcus uberis induce neutrophil extracellular traps, and cause cytotoxicity and transcriptional upregulation of inflammatory cytokine genes in bovine mammary epithelial cells. J Vet Med Sci 2024; 86:141-149. [PMID: 38104974 PMCID: PMC10898994 DOI: 10.1292/jvms.23-0302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 11/29/2023] [Indexed: 12/19/2023] Open
Abstract
This study aimed to understand the response of neutrophils stimulated by Streptococcus uberis, a major cause of mastitis. It was found that the production of neutrophil extracellular traps (NETs) was induced in milk clots from mastitic milk produced by S. uberis-infected bovine udders. The release of NETs from neutrophils stimulated by S. uberis was investigated. Bovine neutrophils cocultured with S. uberis in vitro released the components of NETs, which contained extracellular DNA and elastase. Bovine mammary epithelial cells (BMECs) incubated in coculture supernatants containing components of NETs, caused cytotoxicity and transcriptional upregulation of inflammatory cytokines, including of interleukin (IL) -1β, tumor necrosis factor (TNF)-α, IL-6, and IL-8, in BMECs. These findings suggest that bovine neutrophils stimulated by S. uberis induce responses that cause exacerbated inflammation, such as NET formation, cytotoxicity against BMECs, and increased production of inflammatory cytokines. Bovine neutrophil responses stimulated by S. uberis could be involved in the progression of S. uberis-induced mastitis.
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Affiliation(s)
- Shinya GOTO
- Pathology and Production Disease Group, Division of Hygiene
Management, National Institute of Animal Health, National Agriculture and Food Research
Organization, Hokkaido, Japan
| | - Osamu MIKAMI
- Pathology and Production Disease Group, Division of Hygiene
Management, National Institute of Animal Health, National Agriculture and Food Research
Organization, Hokkaido, Japan
| | - Yuya NAGASAWA
- Pathology and Production Disease Group, Division of Hygiene
Management, National Institute of Animal Health, National Agriculture and Food Research
Organization, Hokkaido, Japan
| | - Atsushi WATANABE
- Pathology and Production Disease Group, Division of Hygiene
Management, National Institute of Animal Health, National Agriculture and Food Research
Organization, Hokkaido, Japan
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Rifatbegović M, Nicholas RAJ, Mutevelić T, Hadžiomerović M, Maksimović Z. Pathogens Associated with Bovine Mastitis: The Experience of Bosnia and Herzegovina. Vet Sci 2024; 11:63. [PMID: 38393081 PMCID: PMC10891550 DOI: 10.3390/vetsci11020063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/19/2024] [Accepted: 01/27/2024] [Indexed: 02/25/2024] Open
Abstract
To obtain improved insights into the complex microbial aetiology of bovine mastitis, this study investigated the pathogens involved in cattle mastitis in Bosnia and Herzegovina. A total of 179 milk samples from cows with clinical mastitis (CM) and subclinical mastitis (SCM), as well as eight bulk tank milk (BTM) samples from 48 dairy farms, were analysed by standard bacteriological and mycological methods. Mycoplasma detection and identification were performed using culture techniques and real-time polymerase chain reaction (PCR). A total of 88 (49.2%) mastitis samples were positive for known mastitis pathogens at 32 of 47 farms (68.1%). Mycoplasma bovis was a predominant pathogen (25/187; 13.4%) in the majority of herds (14/48; 29.2%) and accounted for 48.9% of positive CM samples. Escherichia coli was the second most dominant CM pathogen (34%), followed by Streptococcus agalactiae (10.6%), whereas Staphylococcus aureus and coagulase-negative staphylococci were the most common in SCM samples (17.1%). Other mastitis pathogens included Candida spp. and Prototheca zopfii. Two BTM samples were positive for M. bovis only, and one was positive for a mixed culture of S. aureus and Streptococcus uberis. The finding of various causative agents of bovine mastitis, with M. bovis emerging as the main pathogen, emphasizes the significance of comprehensive testing that includes not only common mastitis pathogens but also mycoplasmas, fungi, and algae.
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Affiliation(s)
- Maid Rifatbegović
- Department of Pathobiology and Epidemiology, Veterinary Faculty, University of Sarajevo, Zmaja od Bosne 90, 71000 Sarajevo, Bosnia and Herzegovina; (M.R.); (Z.M.)
| | | | - Tarik Mutevelić
- Department of Clinical Sciences, Veterinary Faculty, University of Sarajevo, Zmaja od Bosne 90, 71000 Sarajevo, Bosnia and Herzegovina;
| | - Mithat Hadžiomerović
- Cantonal Administration of Civil Protection of Bosnian-Podrinje Canton, 1. Slavne Višegradske Brigade 2a, 73000 Goražde, Bosnia and Herzegovina;
| | - Zinka Maksimović
- Department of Pathobiology and Epidemiology, Veterinary Faculty, University of Sarajevo, Zmaja od Bosne 90, 71000 Sarajevo, Bosnia and Herzegovina; (M.R.); (Z.M.)
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Wagemann-Fluxá CA, Kelton DF, DeVries TJ. Associations of cow- and herd-level factors during the dry period with indicators of udder health in early-lactation cows milked by automated milking systems. J Dairy Sci 2024; 107:459-475. [PMID: 37690715 DOI: 10.3168/jds.2023-23796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 07/28/2023] [Indexed: 09/12/2023]
Abstract
This observational study aimed to determine the association of cow-level factors and herd-level housing and management practices during the dry period with indicators of udder health in early-lactation cows in automated milking system (AMS) herds. Data were collected from 166 commercial AMS dairy farms (mean ± standard deviation = 116 ± 111 milking cows; range = 39 to 1,200) across Canada between October 2018 and September 2020. Information on herd demographics, housing, and management practices was obtained on each farm using 2 surveys. On each farm, we selected all cows that had available Dairy Herd Improvement (DHI) somatic cell count (SCC) data for their last milk test before dry-off (>250 d in milk) and their first milk test after calving (5-45 d in milk). Data from 14,007 cows were included after excluding cows with a dry period of <30 d and >120 d. Using the SCC data, we calculated for each cow the somatic cell score (SCS) for the last milk test before dry-off (PreSCS) and the first milk test after calving (PostSCS), which we then averaged per herd at a test-day level. Intramammary infection (IMI) was estimated using cow SCC data. Each cow was classified as not infected (SCC <200,000 cells/mL) or infected (SCC ≥200,000 cells/mL) at her last milk test before dry-off and her first milk test after calving. Based on this classification, cows were further categorized as never infected, always infected, new IMI, or cured IMI. At the cow level, a higher PostSCS was associated with longer dry periods. The odds of having a new IMI were higher for cows of higher parity and that had lower 305-d milk yield before dry-off. Cows with lower parity were more likely to cure an IMI. At the herd level, a higher 305-d milk yield before dry-off was associated with a lower incidence of new IMI and a higher incidence of cured IMI. Separating cows into a different pen as preparation for dry-off tended to be associated with a lower PostSCS and incidence of new IMI. At dry-off, herds that used teat sealants and blanket antibiotic dry cow therapy also had lower PostSCS. During the dry period, housing cows in different groups was associated with a higher PostSCS and a lower incidence of cured IMI, while housing cows in both pack pens and stalls compared with only pack pens was associated with a lower incidence of new IMI. Finally, placing cows onto the AMS to be milked one or more days after calving tended to be associated with a lower PostSCS compared with placing them in the AMS within the first day postpartum. In summary, indicators of udder health in early-lactation cows in AMS herds were associated with several cow-level factors and herd-level housing and management practices before dry-off, at dry-off, during the dry period, and at the beginning of lactation. Thus, if some of the associations identified are causal, AMS producers may be able to improve udder health through modifications of housing and management practices.
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Affiliation(s)
- C A Wagemann-Fluxá
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1 Canada
| | - D F Kelton
- Department of Population Medicine, University of Guelph, Guelph, ON, N1G 2W1 Canada
| | - T J DeVries
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1 Canada.
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10
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Del'Duca A, de Paiva Oliveira GF, de Andrade Faustino M, Borges LA, Sixel ES, Miranda CAS, Rodrigues EM, Medeiros JD, de Sá Guimarães A, Mendonça LC, Cesar DE. Biocontrol capacity of bacteria isolated from sawdust of the dairy cattle production environment. Res Vet Sci 2024; 166:105103. [PMID: 38061143 DOI: 10.1016/j.rvsc.2023.105103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/29/2023] [Accepted: 12/01/2023] [Indexed: 01/01/2024]
Abstract
This research paper aimed to find endemic bacteria from the cattle production system to control the growth of mastitis pathogens. Bacteria were isolated from compost barn sawdust of two dairy cattle systems and later tested to verify their ability to control the growth of Staphylococcus aureus isolates obtained from cattle with mastitis. Bacterial isolates from these systems were tested to verify biocontrol capacity using the double-layer method. A total of 189 isolates were obtained from all samples by considering the morphology of the different bacterial colonies, with 30 isolates showing positive results for the growth control of at least one S. aureus strain and 19 isolates showing the ability to control more than one pathogen strain. The ability to control more than one pathogen and present a significant halo of inhibition in our isolates represents positive traits in the search for cattle mastitis biocontrol microorganisms. Thus, the results obtained represent the range of bacteria capable of controlling the pathogens without the use of antibiotics.
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11
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Yan Y, Zhu K, Fan M, Wan W, Zhao X, Pan M, Ma B, Wei Q. Immunolocalization of antibacterial peptide S100A7 in mastitis goat mammary gland and lipopolysaccharide induces the expression and secretion of S100A7 in goat mammary gland epithelial cells via TLR4/NFκB signal pathway. Anim Biotechnol 2023; 34:2701-2713. [PMID: 37764644 DOI: 10.1080/10495398.2022.2112689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
The antimicrobial peptide S100A7, with antimicrobial activities for a broad spectrum of bacteria, has attracted more and more attention for the prevention and treatment of mastitis. However, there is little information about the expression and regulation mechanism of S100A7 in mastitis goats. This study revealed that S100A7 was mainly expressed in the stratified squamous epithelium of teat skin and streak canal, and S100A7 was present weakly in the healthy goat alveolus yet densely in the mastitis goat collapsed alveolus. Goat mammary epithelial cells (MECs) were isolated and treated with 2.5, 5, 10 and 20 µg/mL lipopolysaccharide (LPS) respectively for a different time, S100A7 mRNA expression and protein secretion were upregulated significantly with LPS treatment for 3 h, and the secretion level of S100A7 descended after 48 h treatment for all of these four groups. Moreover, after treatment with LPS, the mRNA levels of Toll-like receptor 4 (TLR4) and MyD88 were up-regulated, and the phosphorylation of p65 was up-regulated markedly. However, adding TLR4 inhibitor TAK-242 or/and NF-κB inhibitor QNZ significantly suppressed the phosphorylation of p65, and then inhibited the expression and secretion of S100A7 induced by LPS treatment. In conclusion, LPS induced the expression and secretion of S100A7 in goat MECs via TLR4/NF-κB signaling pathway.
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Affiliation(s)
- Yutong Yan
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
- College of Veterinary Medicine, Northwest A & F University, Yangling, Shaanxi, China
| | - Kunyuan Zhu
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
- College of Veterinary Medicine, Northwest A & F University, Yangling, Shaanxi, China
| | - Mingzhen Fan
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
- College of Veterinary Medicine, Northwest A & F University, Yangling, Shaanxi, China
| | - Wenjing Wan
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
- College of Veterinary Medicine, Northwest A & F University, Yangling, Shaanxi, China
| | - Xiaoe Zhao
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
- College of Veterinary Medicine, Northwest A & F University, Yangling, Shaanxi, China
| | - Menghao Pan
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
- College of Veterinary Medicine, Northwest A & F University, Yangling, Shaanxi, China
| | - Baohua Ma
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
- College of Veterinary Medicine, Northwest A & F University, Yangling, Shaanxi, China
| | - Qiang Wei
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China
- College of Veterinary Medicine, Northwest A & F University, Yangling, Shaanxi, China
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12
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Motta RG, Motta LSAM, Bertolini AB, Prado AM, Thyssen PJ, Hernandes RT, Orsi H, Rall VLM, Gouvea FLR, Guerra ST, Guimarães FF, Joaquim SF, Pantoja JC, Langoni H, Ribeiro MG. Identification of Escherichia coli isolated from flies (Insecta: Diptera) that inhabit the environment of dairy farms harboring extraintestinal virulence markers. J Appl Microbiol 2023; 134:lxad301. [PMID: 38086616 DOI: 10.1093/jambio/lxad301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/04/2023] [Accepted: 12/11/2023] [Indexed: 12/20/2023]
Abstract
AIMS We investigate extraintestinal pathogenic genes (ExPEC) related to virulence of Escherichia coli in flies from the dairy environment. METHODS AND RESULTS We collected 217 flies from nine dairy farms, which were submitted to microbiological culture. Fifty-one E. coli were identified using mass spectrometry. Eleven dipteran families were identified, with a predominance of Muscidae, and a minor frequency of Tachinidae, Drosophilidae, Sphaeroceridae, Ulidiidae, Syrphidae, Chloropidae, Calliphoridae, Sarcophagidae, and Piophilidae. A panel of 16 virulence-encoding genes related to ExPEC infections were investigated, which revealed predominance of serum resistance (traT, 31/51 = 60.8%; ompT, 29/51 = 56.9%), iron uptake (irp2, 17/51 = 33.3%, iucD 11/51 = 21.6%), and adhesins (papC, 6/51 = 11.8%; papA, 5/51 = 9.8%). CONCLUSIONS Our findings reveal Dipterans from milking environment carrying ExPEC virulence-encoding genes also identified in clinical bovine E. coli-induced infections.
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Affiliation(s)
- Rodrigo G Motta
- Department of Veterinary Medicine, State University of Maringa, Umuarama, PR, 87507-190, Brazil
| | - Lorrayne S A M Motta
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University-UNESP, Botucatu, SP, 18618-681, Brazil
| | - Amanda B Bertolini
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University-UNESP, Botucatu, SP, 18618-681, Brazil
| | - Aline M Prado
- Department of Animal Biology, Biology Institute, University of Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
| | - Patricia J Thyssen
- Department of Animal Biology, Biology Institute, University of Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
| | - Rodrigo T Hernandes
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University-UNESP, Botucatu, SP, 18618-689, Brazil
| | - Henrique Orsi
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University-UNESP, Botucatu, SP, 18618-689, Brazil
| | - Vera L M Rall
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University-UNESP, Botucatu, SP, 18618-689, Brazil
| | - Fábio L R Gouvea
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University-UNESP, Botucatu, SP, 18618-681, Brazil
| | - Simony T Guerra
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University-UNESP, Botucatu, SP, 18618-681, Brazil
| | - Felipe F Guimarães
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University-UNESP, Botucatu, SP, 18618-681, Brazil
| | - Sâmea F Joaquim
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University-UNESP, Botucatu, SP, 18618-681, Brazil
| | - José C Pantoja
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University-UNESP, Botucatu, SP, 18618-681, Brazil
| | - Helio Langoni
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University-UNESP, Botucatu, SP, 18618-681, Brazil
| | - Márcio G Ribeiro
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University-UNESP, Botucatu, SP, 18618-681, Brazil
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13
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Caterino C, Della Valle G, Aragosa F, Cavalli S, Guccione J, Lamagna F, Fatone G. Clinical Application of Platelet Concentrates in Bovine Practice: A Systematic Review. Vet Sci 2023; 10:686. [PMID: 38133237 PMCID: PMC10747389 DOI: 10.3390/vetsci10120686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/29/2023] [Accepted: 11/30/2023] [Indexed: 12/23/2023] Open
Abstract
Platelet concentrates (PCs) have become widely used in veterinary and human medicine. The PCs consist mainly of supraphysiological concentrations of platelets and, therefore, growth factors (GFs) which are stored within platelet α-granules. Among PCs, Platelet-Rich Plasma (PRP) is characterised by low-density fibrin. Research on the effect of PCs in cattle has surged in recent years; in particular, evidence has shown the positive use of PRP for treating reproductive problems, in vitro production of bovine embryos, sole ulcers and udder diseases. The aim of this report is to critically review, in accordance with the PRISMA guidelines, the available literature reporting clinical application in the bovine practice of PRP. Three bibliographic databases PubMed, Web of Science and Scopus were used for a broad search of "platelet concentrates" OR "PRP" OR "platelet-rich plasma" OR "PRF" OR "platelet-rich fibrin" AND "cows" OR "cattle". From 1196 papers, only six met the inclusion criteria. Two papers described the use of PRP in mastitis, two papers in uterine dysfunction and two papers in ovarian dysfunction. PRP offered a low-cost, easily obtained therapeutic option and showed positive results for these patients. However, given the different pathologies and definitions involved, further studies are necessary to assess its full clinical potential.
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Affiliation(s)
| | | | - Federica Aragosa
- Department of Veterinary Medicine and Animal Production, University of Naples “Federico II”, 80137 Naples, Italy; (C.C.); (G.D.V.); (S.C.); (J.G.); (F.L.); (G.F.)
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14
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Peña-Mosca F, Dean C, Machado V, Fernandes L, Pinedo P, Doster E, Heins B, Sharpe K, Ray T, Feijoo V, Antunes A, Baumann C, Wehri T, Noyes N, Caixeta L. Investigation of intramammary infections in primiparous cows during early lactation on organic dairy farms. J Dairy Sci 2023; 106:9377-9392. [PMID: 37641314 DOI: 10.3168/jds.2022-23036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 06/25/2023] [Indexed: 08/31/2023]
Abstract
Previous studies have shown that organically raised dairy cows have an increased prevalence of Staphylococcus aureus compared with conventionally raised dairy cows. However, little information exists about the dynamics of intramammary infection (IMI) in primiparous cows during early lactation on organic dairy farms. The objective of this study was to describe the IMI dynamics of primiparous cows on certified organic farms during early lactation. This longitudinal study enrolled 503 primiparous cows from 5 organic dairy farms from February 2019 to January 2020. Quarter-level milk samples were collected aseptically on a weekly basis during the first 5 wk of lactation. Samples were pooled by cow and time point into composite samples inside a sterilized laminar hood and submitted for microbiological culture. For each of the different microorganisms identified, we estimated the prevalence in each postpartum sample, period prevalence (PP), cumulative incidence, and persistence of IMI. Logistic regression models were used to investigate whether the prevalence of IMI differed by farm or sampling time points and whether IMI persistence differed between detected microorganisms. Our findings revealed a high prevalence of Staphylococcus aureus (PP = 18.9%), non-aureus staphylococci and closely related mammaliicoccal species (PP = 52.1%), and Streptococcus spp. and Streptococcus-like organisms (PP = 32.1%) within the study population. The prevalence of these microorganisms varied significantly between farms. Staphylococcus aureus and Staphylococcus chromogenes exhibited significantly higher IMI persistence compared with other detected bacterial taxa, confirming the divergent epidemiological behavior in terms of IMI chronicity across different microorganisms. This study improves our understanding of the epidemiology of mastitis-causing pathogens in organically raised primiparous cows, which can be used to tailor mastitis control plans for this unique yet growing subpopulation of dairy cows.
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Affiliation(s)
- Felipe Peña-Mosca
- Department of Veterinary Population Medicine, University of Minnesota, Saint Paul, MN 55108
| | - Chris Dean
- Department of Veterinary Population Medicine, University of Minnesota, Saint Paul, MN 55108
| | - Vinicius Machado
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108
| | - Leticia Fernandes
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108
| | - Pablo Pinedo
- Department of Veterinary Sciences, Texas Tech University, Lubbock, TX 79409
| | - Enrique Doster
- Department of Veterinary Sciences, Texas Tech University, Lubbock, TX 79409
| | - Bradley Heins
- Department of Animal Sciences, Colorado State University, Fort Collins, CO 80521
| | - Kirsten Sharpe
- Department of Animal Sciences, Colorado State University, Fort Collins, CO 80521
| | - Tui Ray
- Department of Veterinary Population Medicine, University of Minnesota, Saint Paul, MN 55108
| | - Victoria Feijoo
- Department of Veterinary Population Medicine, University of Minnesota, Saint Paul, MN 55108
| | - Acir Antunes
- Department of Veterinary Population Medicine, University of Minnesota, Saint Paul, MN 55108
| | - Carol Baumann
- Department of Veterinary Population Medicine, University of Minnesota, Saint Paul, MN 55108
| | - Thomas Wehri
- Department of Veterinary Population Medicine, University of Minnesota, Saint Paul, MN 55108
| | - Noelle Noyes
- Department of Veterinary Population Medicine, University of Minnesota, Saint Paul, MN 55108
| | - Luciano Caixeta
- Department of Veterinary Population Medicine, University of Minnesota, Saint Paul, MN 55108.
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15
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Zhuang C, Zhao J, Zhang S, Shahid M. Escherichia coli infection mediates pyroptosis via activating p53-p21 pathway-regulated apoptosis and cell cycle arrest in bovine mammary epithelial cells. Microb Pathog 2023; 184:106338. [PMID: 37683833 DOI: 10.1016/j.micpath.2023.106338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/05/2023] [Accepted: 09/05/2023] [Indexed: 09/10/2023]
Abstract
Escherichia coli (E. coli) is a major environmental pathogen that causes mammary tissue damage and cell death, which results in substantial economic losses. Pyroptosis, a novel form of programmed cell death characterized by DNA fragmentation, chromatin condensation, cell swelling and leakage of cell contents, often occurs after inflammatory apoptotic pathways activation. Our objective was to investigate the intraction between E. coli infection and bovine mammary epithelial cells (bMECs) with pyroptosis and to explore the underlying regulatory mechanism. bMECs were infected with E. coli for 6 h. Lactic dehydrogenase activities, interleukin (IL)-10, IL-1β, IL-18 and tumor necrosis factor-α concentrations, total apoptosis indexes, and protein expressions of P-cdc25c, P-CDK1, cleaved caspase 9, cleaved caspase 3, cleaved PARP, P-NF-κB, NLRP3, ASC, caspase 1, gasdermin D N-terminal, IL-1β and IL-18 were significantly increased in E. coli infected bMECs. Whereas, cell membrane potential, protein levels of cdc25c, CDK1, cyclin B1, and Bcl-2/Bax level were markedly reduced. Furthermore, Ac-DEVD-CHO (specific inhibitor of apoptosis) dramatically suppressed pyroptosis in bMECs. Moreover, expressions of p53 and p21 promptly improved after E. coli infection, however, Pifithrin-α (specific inhibitor of p53) inhibited p53-p21 pathway, apoptosis, cell cycle arrest and pyroptosis. These results elaborated that E. coli infection of bMECs induced pyroptosis through activating the p53-p21 pathway-mediated apoptosis and cell cycle arrest. Taken together, inhibition of pyroptosis via suppressing of p53-p21 pathway may be an effective therapeutic approach for treating E. coli-induced mastitis, offering efficient theoretical support for the protection and treatment of bovine mastitis.
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Affiliation(s)
- Cuicui Zhuang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, PR China.
| | - Jinhui Zhao
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, PR China
| | - Shiyao Zhang
- China Agricultural Science and Technology Press Ltd, Beijing, 100081, PR China
| | - Muhammad Shahid
- Center of Microbiology and Biotechnology, Veterinary Research Institute, Khyber Pakhtunkhwa, Peshawar, 25000, Pakistan
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16
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Mr. Saddam, Khan M, Jamal M, Rahman SU, Qadeer A, Khan I, Mahmoud MH, Batiha GES, Shah SH. Nutritional analysis and characterization of carbapenemase producing-Klebsiella pneumoniae resistant genes associated with bovine mastitis infected cow's milk. PLoS One 2023; 18:e0293477. [PMID: 37889925 PMCID: PMC10610456 DOI: 10.1371/journal.pone.0293477] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
The current study was designed to analyze nutritional parameters and to characterize carbapenemase producing-Klebsiella pneumoniae isolates from bovine mastitic cow's milk. Out of 700 milk samples K. pneumoniae was identified by phenotypic and molecular techniques along with their antibiogram analysis and nutritional analysis was performed using the procedure of Association of Official Analytical Chemists. Carbapenemase-producing K. pneumoniae was detected by phenotypic CarbaNP test followed by molecular characterization of their associated resistant genes blaVIM, blaKPC, blaOXA-48, blaNDM, and blaIMP along with insertion sequence common region 1 (ISCR1) and integrons (Int1, Int2, and Int3) genes. Among nutritional parameters, fat content was observed (2.99%) followed by protein (2.78%), lactose (4.32%), and total solid (11.34%), respectively. The prevalence of K. pneumoniae among bovine mastitis was found 25.71%. Antibiogram analysis revealed that more effective antibiotics was ceftazidime (80%) followed by amikacin (72%), while highly resistant antibiotics was Fusidic acid (100%). Distribution of carbapenemase producer K. pneumoniae was found 44.4%. Among carbapenem resistant genes blaKPC was found 11.25%, blaVIM 2.75%, blaNDM 17.5%, and blaOXA-48 7.5%, while blaIMP gene was not detected. Furthermore, distribution of ISCR1 was found 40%, while integron 1 was found 61.2% followed by integron 2 (20%), and integron 3 (5%). In conclusion, the recent scenario of carbapenemase resistant K. pneumoniae isolates responsible for mastitis may affect not only the current treatment regime but also possess a serious threat to public health due to its food borne transmission and zoonotic potential.
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Affiliation(s)
- Mr. Saddam
- Department of Microbiology, Abdul Wali Khan University, Marden, Pakistan
| | - Muddasir Khan
- Centre of Biotechnology and Microbiology, University of Peshawar, Peshawar, Pakistan
| | - Muhsin Jamal
- Department of Microbiology, Abdul Wali Khan University, Marden, Pakistan
| | - Sadeeq Ur Rahman
- College of Veterinary Sciences and Animal Husbandry, Abdul Wali Khan University, Mardan, Pakistan
| | - Abdul Qadeer
- Shanghai Tenth People’s Hospital, Institute for Infectious Diseases and Vaccine Development, Tongji University School of Medicine, Shanghai, China
| | - Imad Khan
- College of Veterinary Sciences and Animal Husbandry, Abdul Wali Khan University, Mardan, Pakistan
| | - Mohamed H. Mahmoud
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Gaber El-Saber Batiha
- Department of Pharmacology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, AlBeheira, Egypt
| | - Syed Hussain Shah
- Department of Health and Biological Sciences, Abasyn University Peshawar, Peshawar, Pakistan
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17
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Khasapane NG, Khumalo ZTH, Kwenda S, Nkhebenyane SJ, Thekisoe O. Characterisation of Milk Microbiota from Subclinical Mastitis and Apparently Healthy Dairy Cattle in Free State Province, South Africa. Vet Sci 2023; 10:616. [PMID: 37888568 PMCID: PMC10610705 DOI: 10.3390/vetsci10100616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 10/04/2023] [Accepted: 10/08/2023] [Indexed: 10/28/2023] Open
Abstract
Bovine mastitis is an inflammation of the udder tissue of the mammary gland brought on by microbial infections or physical damage. It is characterised by physical, chemical, and biological changes in the udder and milk. While several different bacterial species have been identified as causative agents of mastitis, many subclinical mastitis (SCM) cases remain culture-negative. The aim of this study was to characterise milk microbiota from SCM and apparently healthy dairy cows (non-SCM) by 16S rRNA sequencing. Alpha-diversity metrics showed significant differences between SCM cows and non-SCM counterparts. The beta-diversity metrics in the principal coordinate analysis significantly clustered samples by type (PERMANOVA test, p < 0.05), while non-metric dimensional scaling did not (PERMANOVA test, p = 0.07). The overall analysis indicated a total of 95 phyla, 33 classes, 82 orders, 124 families, 202 genera, and 119 bacterial species. Four phyla, namely Actinobacteriota, Bacteroidota, Firmicutes, and Proteobacteria collectively accounted for more than 97% of all sequencing reads from SCM and non-SCM cow samples. The most abundant bacterial classes were Actinobacteria, Bacilli, Bacteroidia, Clostridia, and Gammaproteobacteria in non-SCM cow samples, whilst SCM cow samples were mainly composed of Actinobacteria, Alphaproteobacteria, Bacilli, Clostridia, and Gammaproteobacteria. Dominant bacterial species in non-SCM cow samples were Anthropi spp., Pseudomonas azotoformans, P. fragi, Acinetobacter guillouiae, Enterococcus italicus, Lactococcus lactis, whilst P. azotoformans, Mycobacterium bovis, P. fragi, Acinetobacter guillouiae, and P. koreensis were dominant in the SCM cow samples. The current study found differences in bacterial species between SCM and non-SCM cow milk; hence, the need for detailed epidemiological studies.
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Affiliation(s)
- N. G. Khasapane
- Centre for Applied Food Safety and Biotechnology, Department of Life Sciences, Central University of Technology, 1 Park Road, Bloemfontein 9300, South Africa;
| | - Z. T. H. Khumalo
- ClinVet International, Study Management, Bainsvlei, Bloemfontein 9300, South Africa;
- Vectors and Vector-Borne Diseases Research Programme, Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, Pretoria 0110, South Africa
| | - S. Kwenda
- Sequencing Core Facility, National Institute for Communicable Diseases, National Health Laboratory Service, Johannesburg 2192, South Africa;
| | - S. J. Nkhebenyane
- Centre for Applied Food Safety and Biotechnology, Department of Life Sciences, Central University of Technology, 1 Park Road, Bloemfontein 9300, South Africa;
| | - O. Thekisoe
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2531, South Africa;
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18
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Morales-Ubaldo AL, Rivero-Perez N, Valladares-Carranza B, Velázquez-Ordoñez V, Delgadillo-Ruiz L, Zaragoza-Bastida A. Bovine mastitis, a worldwide impact disease: Prevalence, antimicrobial resistance, and viable alternative approaches. Vet Anim Sci 2023; 21:100306. [PMID: 37547227 PMCID: PMC10400929 DOI: 10.1016/j.vas.2023.100306] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023] Open
Abstract
Bovine mastitis is globally considered one of the most important diseases within dairy herds, mainly due to the associated economic losses. The most prevalent etiology are bacteria, classified into contagious and environmental, with Staphylococcus aureus, Streptococcus agalactiae, Streptococcus uberis, Escherichia coli and Klebsiella pneumoniae being the most common pathogens associated with mastitis cases. To date these pathogens are resistant to the most common active ingredients used for mastitis treatment. According to recent studies resistance to new antimicrobials has increased, which is why developing of alternative treatments is imperative. Therefore the present review aims to summarize the reports about bovine mastitis along 10 years, emphasizing bacterial etiology, its epidemiology, and the current situation of antimicrobial resistance, as well as the development of alternative treatments for this pathology. Analyzed data showed that the prevalence of major pathogens associated with bovine mastitis varied according to geographical region. Moreover, these pathogens are classified as multidrug-resistant, since the effectiveness of antimicrobials on them has decreased. To date, several studies have focused on the research of alternative treatments, among them vegetal extracts, essential oils, or peptides. Some other works have reported the application of nanotechnology and polymers against bacteria associated with bovine mastitis. Results demonstrated that these alternatives may be effective on bacteria associated with bovine mastitis.
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Affiliation(s)
- Ana Lizet Morales-Ubaldo
- Área Académica de Medicina Veterinaria y Zootecnia, Instituto de Ciencias Agropecuarias, Rancho Universitario Av. Universidad km 1, Universidad Autónoma del Estado de Hidalgo, EX-Hda de Aquetzalpa, Tulancingo, C.P 43660, Hidalgo, Mexico
| | - Nallely Rivero-Perez
- Área Académica de Medicina Veterinaria y Zootecnia, Instituto de Ciencias Agropecuarias, Rancho Universitario Av. Universidad km 1, Universidad Autónoma del Estado de Hidalgo, EX-Hda de Aquetzalpa, Tulancingo, C.P 43660, Hidalgo, Mexico
| | - Benjamín Valladares-Carranza
- Centro de Investigación y Estudios Avanzados en Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Km 15.5 Carretera Panamericana Toluca-Atlacomulco, C.P. 50200 Toluca, Estado de México, Mexico
| | - Valente Velázquez-Ordoñez
- Centro de Investigación y Estudios Avanzados en Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Km 15.5 Carretera Panamericana Toluca-Atlacomulco, C.P. 50200 Toluca, Estado de México, Mexico
| | - Lucía Delgadillo-Ruiz
- Unidad Académica de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Zacatecas, CP. 98068, Zacatecas, Zacatecas, Mexico
| | - Adrian Zaragoza-Bastida
- Área Académica de Medicina Veterinaria y Zootecnia, Instituto de Ciencias Agropecuarias, Rancho Universitario Av. Universidad km 1, Universidad Autónoma del Estado de Hidalgo, EX-Hda de Aquetzalpa, Tulancingo, C.P 43660, Hidalgo, Mexico
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19
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Filippone Pavesi L, Pollera C, Sala G, Cremonesi P, Monistero V, Biscarini F, Bronzo V. Effect of the Selective Dry Cow Therapy on Udder Health and Milk Microbiota. Antibiotics (Basel) 2023; 12:1259. [PMID: 37627678 PMCID: PMC10451862 DOI: 10.3390/antibiotics12081259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/06/2023] [Accepted: 07/28/2023] [Indexed: 08/27/2023] Open
Abstract
Recently, the use of antimicrobials on dairy farms has been significantly limited from both the legislative and consumer points of view. This study aims to check the efficacy of selective dry cow therapy (SDCT) versus blanket dry cow therapy (BDCT) on bovine udder in healthy animals. SDTC is when an antibiotic is administered only to infected cows, compared with BDCT, where all cows receive an antimicrobial, regardless of their infection status. The milk samples were collected from enrolled Holstein Friesian cows 7 days before dry-off (T0) and 10 days after calving (T1) to assess somatic cell count (SCC), intramammary infections (IMIs), and milk microbiota variation. After pre-drying sampling, cows are randomly assigned to the following treatments: internal teat sealant alone (ITS; 24 cows), which is a treatment in a cow that does not receive antibiotics in SDTC, or in combination with intramammary antibiotic treatment (A+ITS; 22 cows). Non-statistically significant results are found between the two treatment groups at T1 for SCC, milk yield, and alpha diversity in milk microbiota. A statistically (p < 0.033) T1 IMI decrease is reported in the A+ITS group, and a significant beta diversity analysis is shown between the two timepoints (p = 0.009). This study confirms the possibility of selective drying without new IMI risk or increased SCC at calving, considering healthy cows without contagious infections and SCC values >200,000 cells/mL in the previous lactation.
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Affiliation(s)
- Laura Filippone Pavesi
- Department of Veterinary Medicine and Animal Science, University of Milan, Via dell’Università 6, 26900 Lodi, Italy; (L.F.P.); (C.P.); (V.M.); (V.B.)
| | - Claudia Pollera
- Department of Veterinary Medicine and Animal Science, University of Milan, Via dell’Università 6, 26900 Lodi, Italy; (L.F.P.); (C.P.); (V.M.); (V.B.)
| | - Giulia Sala
- Department of Veterinary Science, University of Pisa, Via Livornese (SP-22), 56124 Pisa, Italy
| | - Paola Cremonesi
- Institute of Agricultural Biology and Biotechnology, National Research Council (CNR), Via Bassini 15, 20133 Milan, Italy; (P.C.); (F.B.)
| | - Valentina Monistero
- Department of Veterinary Medicine and Animal Science, University of Milan, Via dell’Università 6, 26900 Lodi, Italy; (L.F.P.); (C.P.); (V.M.); (V.B.)
| | - Filippo Biscarini
- Institute of Agricultural Biology and Biotechnology, National Research Council (CNR), Via Bassini 15, 20133 Milan, Italy; (P.C.); (F.B.)
| | - Valerio Bronzo
- Department of Veterinary Medicine and Animal Science, University of Milan, Via dell’Università 6, 26900 Lodi, Italy; (L.F.P.); (C.P.); (V.M.); (V.B.)
- Laboratory of Animal Infectious Diseases—MiLab, University of Milan, Via dell’Università 6, 26900 Lodi, Italy
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20
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Kour S, Sharma N, N B, Kumar P, Soodan JS, Santos MVD, Son YO. Advances in Diagnostic Approaches and Therapeutic Management in Bovine Mastitis. Vet Sci 2023; 10:449. [PMID: 37505854 PMCID: PMC10384116 DOI: 10.3390/vetsci10070449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/30/2023] [Accepted: 07/05/2023] [Indexed: 07/29/2023] Open
Abstract
Mastitis causes huge economic losses to dairy farmers worldwide, which largely negatively affects the quality and quantity of milk. Mastitis decreases overall milk production, degrades milk quality, increases milk losses because of milk being discarded, and increases overall production costs due to higher treatment and labour costs and premature culling. This review article discusses mastitis with respect to its clinical epidemiology, the pathogens involved, economic losses, and basic and advanced diagnostic tools that have been used in recent times to diagnose mastitis effectively. There is an increasing focus on the application of novel therapeutic approaches as an alternative to conventional antibiotic therapy because of the decreasing effectiveness of antibiotics, emergence of antibiotic-resistant bacteria, issue of antibiotic residues in the food chain, food safety issues, and environmental impacts. This article also discussed nanoparticles'/chitosan's roles in antibiotic-resistant strains and ethno-veterinary practices for mastitis treatment in dairy cattle.
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Affiliation(s)
- Savleen Kour
- Division of Veterinary Medicine, Faculty of Veterinary Sciences & Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu, R.S. Pura, Jammu 181102, India
| | - Neelesh Sharma
- Division of Veterinary Medicine, Faculty of Veterinary Sciences & Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu, R.S. Pura, Jammu 181102, India
| | - Balaji N
- Division of Veterinary Medicine, Faculty of Veterinary Sciences & Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu, R.S. Pura, Jammu 181102, India
| | - Pavan Kumar
- Department of Livestock Products Technology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab 141004, India
| | - Jasvinder Singh Soodan
- Division of Veterinary Clinical Complex, Faculty of Veterinary Sciences & Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu, R.S. Pura, Jammu 181102, India
| | - Marcos Veiga Dos Santos
- Department of Animal Sciences, School of Veterinary Medicine and Animal Sciences, University of São Paulo, Pirassununga 13635-900, São Paulo, Brazil
| | - Young-Ok Son
- Department of Animal Biotechnology, Faculty of Biotechnology, College of Applied Life Sciences and Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju 690756, Republic of Korea
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21
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Li X, Xu C, Liang B, Kastelic JP, Han B, Tong X, Gao J. Alternatives to antibiotics for treatment of mastitis in dairy cows. Front Vet Sci 2023; 10:1160350. [PMID: 37404775 PMCID: PMC10315858 DOI: 10.3389/fvets.2023.1160350] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/26/2023] [Indexed: 07/06/2023] Open
Abstract
Mastitis is considered the costliest disease on dairy farms and also adversely affects animal welfare. As treatment (and to a lesser extent prevention) of mastitis rely heavily on antibiotics, there are increasing concerns in veterinary and human medicine regarding development of antimicrobial resistance. Furthermore, with genes conferring resistance being capable of transfer to heterologous strains, reducing resistance in strains of animal origin should have positive impacts on humans. This article briefly reviews potential roles of non-steroidal anti-inflammatory drugs (NSAIDs), herbal medicines, antimicrobial peptides (AMPs), bacteriophages and their lytic enzymes, vaccination and other emerging therapies for prevention and treatment of mastitis in dairy cows. Although many of these approaches currently lack proven therapeutic efficacy, at least some may gradually replace antibiotics, especially as drug-resistant bacteria are proliferating globally.
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Affiliation(s)
- Xiaoping Li
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Chuang Xu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Bingchun Liang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - John P. Kastelic
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - Bo Han
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Xiaofang Tong
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Jian Gao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
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22
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Gutiérrez-Reinoso MA, Uquilla JB, Guamaní JL, Caiza ÁE, Carrera RP, Garcia-Herreros M. Intramammary Infusion of Micronised Purified Flavonoid Fraction (MPFF) in Mastitis-Diagnosed Dairy Cows Naturally Infected by Staphylococcus spp. in the Late Lactation. Vet Sci 2023; 10:vetsci10050335. [PMID: 37235418 DOI: 10.3390/vetsci10050335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/24/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
Infectious mastitis is the most prevalent health problem in dairy cattle that can result in permanent economic losses on dairy farms. The micronised purified flavonoid fraction (MPFF) is a biocompatible active polyphenolic compound derived from flavonoid glycosides which exhibits several antimicrobial, anti-inflammatory, and phlebotonic properties. The goal was to assess the effects of an alternative therapy for mastitis based on MPFF intramammary infusions in late lactation in dairy cows naturally infected by Staphylococcus spp. The California Mastitis Test (CMT scores) was performed to detect mastitis-positive quarters in twelve dairy farms. All cows were screened for immune response by measuring somatic cell counts (SCCs; cells/mL) in milk samples from each quarter. In addition, bacteriological identification, pathogenic bacterial isolates, and total bacterial counts (TBCs; CFU/mL) were assessed before (day 0, last milking day) and after (day 3 post-calving) MPFF application. Antimicrobial sensitivity patterns of the pathogenic isolated bacteria were evaluated. Finally, cure rates (%) were determined for each MPFF treatment. Around 15 mastitis-related genera were isolated. Staphylococcus aureus (25.2%) and coagulase-negative Staphylococci (CNS; 22.4%) were the most prevalent pathogens. No statistical differences were observed in SCCs and TBCs after low, medium, and high MPFF dose administration in S. aureus-positive mastitis cases (p > 0.05). However, differences were observed in SCCs and TBCs after medium and high MPFF dose administration in CNS-positive quarters (p < 0.05). The pathogenic bacteria isolate reduction after MPFF applications showed a dose-response fashion (p < 0.01) while isolates obtained from controls and low MPFF-treated quarters remained similar, irrespective of the pathogen (p > 0.05). Sensitivity patterns were variable, although S. aureus remained resistant, irrespective of the MPFF dose. However, CNS showed a dose-response sensitivity pattern. Finally, the cure rate (%) on day 3 post-partum improved significantly using medium and higher MPFF doses in CNS-positive quarters (p < 0.05). In conclusion, MPFF treatment was found to be more effective for CNS-positive cases in the late lactation due to noticeable dose-specific responses regarding somatic cells, bacterial counts, sensitivity patterns, and cure rates in dairy cattle.
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Affiliation(s)
- Miguel A Gutiérrez-Reinoso
- Carrera de Medicina Veterinaria, Facultad de Ciencias Agropecuarias y Recursos Naturales, Universidad Técnica de Cotopaxi (UTC), 0501491 Latacunga, Ecuador
- Departamento de Ciencia Animal, Laboratorio de Biotecnología Animal, Facultad de Ciencias Veterinarias, Universidad de Concepción, Chillán (UdeC) 3780000, Chile
| | - José B Uquilla
- Departamento de Asesoría Ganadera, La Holandesa SAS, Quito 170179, Ecuador
| | - Jorge L Guamaní
- Carrera de Medicina Veterinaria, Facultad de Ciencias Agropecuarias y Recursos Naturales, Universidad Técnica de Cotopaxi (UTC), 0501491 Latacunga, Ecuador
| | - Ángel E Caiza
- Carrera de Medicina Veterinaria, Facultad de Ciencias Agropecuarias y Recursos Naturales, Universidad Técnica de Cotopaxi (UTC), 0501491 Latacunga, Ecuador
| | - Rocío P Carrera
- Carrera de Medicina Veterinaria, Facultad de Ciencias Agropecuarias y Recursos Naturales, Universidad Técnica de Cotopaxi (UTC), 0501491 Latacunga, Ecuador
| | - Manuel Garcia-Herreros
- National Institute for Agricultural and Veterinary Research (INIAV, I.P.), Polo de Santarém, Quinta da Fonte Boa, 2005-048 Santarém, Portugal
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23
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Mendina GR, Damián JP, Meikle A, Chilibroste P, Bentancur O, Adrien MDL. Udder Hygiene and Mastitis Indicators in Contrasting Environmental Conditions during Half-Time Confinement in Pasture-Based Dairy Systems. Animals (Basel) 2023; 13:ani13091544. [PMID: 37174581 PMCID: PMC10177145 DOI: 10.3390/ani13091544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
This study aimed to compare the association between two types of housing, compost barns (CB) vs. outdoor soil-bedded yard (OD), and udder hygiene and mastitis indicators in Holstein dairy cows calving in autumn (n = 31) and spring (n = 27). After calving, cows were transferred to a pasture-based system with half-time confinement in one of two treatments: CB or OD. The udder hygiene score (UHS) was evaluated monthly and on days after rainfall over the entire lactation period. Individual somatic cell count (SCC) was determined throughout lactation, and the prevalence of intramammary infection (IMI) was estimated. Cows confined in OD presented higher UHS compared to cows in CB (p < 0.05) in both calving seasons. After rains, autumn-calving cows in OD were dirtier than on days without previous rain (OR = 1.85, CI 95%: 1.1-3.1; p < 0.02). However, no differences in IMI and clinical mastitis were found between OD and CB cows in either calving season.
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Affiliation(s)
- Graciana R Mendina
- Facultad de Veterinaria, Universidad de la República, Ruta 3 km 363, Paysandú 60000, Uruguay
| | - Juan Pablo Damián
- Facultad de Veterinaria, Universidad de la República, Ruta 8 km 18, Montevideo 13000, Uruguay
| | - Ana Meikle
- Facultad de Veterinaria, Universidad de la República, Ruta 8 km 18, Montevideo 13000, Uruguay
| | - Pablo Chilibroste
- Facultad de Agronomía, Universidad de la República, Ruta 3 km 363, Paysandú 60000, Uruguay
| | - Oscar Bentancur
- Facultad de Agronomía, Universidad de la República, Ruta 3 km 363, Paysandú 60000, Uruguay
| | - Maria de Lourdes Adrien
- Facultad de Veterinaria, Universidad de la República, Ruta 3 km 363, Paysandú 60000, Uruguay
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24
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Grodkowski G, Gołębiewski M, Slósarz J, Grodkowska K, Kostusiak P, Sakowski T, Puppel K. Organic Milk Production and Dairy Farming Constraints and Prospects under the Laws of the European Union. Animals (Basel) 2023; 13:1457. [PMID: 37174494 PMCID: PMC10177354 DOI: 10.3390/ani13091457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/17/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
In recent years, there has been rapid development in organic farming. When choosing organic livestock products, consumers are guided by the conviction that animals are provided with the highest welfare standards and access to pasture. The purpose of this article was to trace the principles of organic farming prevailing in the EU with regard to milk production and cattle breeding. The principles of organic production are universal and their application is not limited to certified farms. Organic certification is intended to assure the consumer of the quality and method of production. Due to additional requirements imposed by law, organic cows are usually kept in better welfare conditions compared to conventional cattle, but this is not the rule. The altered taste and texture of organic milk and its products compared to conventional products mainly depends on the presence of pasture greens in the cows' diet. Therefore, milk from conventionally kept, pasture-grazed cows may have similar characteristics and composition. Organic farms tend to have lower milk yields compared to conventional farms due to the lower consumption of concentrate feed. In the future, it is expected that the proportion of land that is unsuitable for the production of crops for human consumption will increasingly be used for cow grazing.
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Affiliation(s)
- Grzegorz Grodkowski
- Institute of Animal Science, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland; (G.G.); (M.G.); (J.S.); (K.G.); (P.K.)
| | - Marcin Gołębiewski
- Institute of Animal Science, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland; (G.G.); (M.G.); (J.S.); (K.G.); (P.K.)
| | - Jan Slósarz
- Institute of Animal Science, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland; (G.G.); (M.G.); (J.S.); (K.G.); (P.K.)
| | - Kinga Grodkowska
- Institute of Animal Science, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland; (G.G.); (M.G.); (J.S.); (K.G.); (P.K.)
| | - Piotr Kostusiak
- Institute of Animal Science, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland; (G.G.); (M.G.); (J.S.); (K.G.); (P.K.)
| | - Tomasz Sakowski
- Institute of Genetics and Animal Biotechnology, Polish Academy of Science, Jastrzębiec, Postępu 36A, 05-552 Magdalenka, Poland
| | - Kamila Puppel
- Institute of Animal Science, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland; (G.G.); (M.G.); (J.S.); (K.G.); (P.K.)
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25
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de Jong E, McCubbin KD, Speksnijder D, Dufour S, Middleton JR, Ruegg PL, Lam TJGM, Kelton DF, McDougall S, Godden SM, Lago A, Rajala-Schultz PJ, Orsel K, De Vliegher S, Krömker V, Nobrega DB, Kastelic JP, Barkema HW. Invited review: Selective treatment of clinical mastitis in dairy cattle. J Dairy Sci 2023; 106:3761-3778. [PMID: 37080782 DOI: 10.3168/jds.2022-22826] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 01/01/2023] [Indexed: 04/22/2023]
Abstract
Treatment of clinical mastitis (CM) and use of antimicrobials for dry cow therapy are responsible for the majority of animal-defined daily doses of antimicrobial use (AMU) on dairy farms. However, advancements made in the last decade have enabled excluding nonsevere CM cases from antimicrobial treatment that have a high probability of cure without antimicrobials (no bacterial causes or gram-negative, excluding Klebsiella spp.) and cases with a low bacteriological cure rate (chronic cases). These advancements include availability of rapid diagnostic tests and improved udder health management practices, which reduced the incidence and infection pressure of contagious CM pathogens. This review informed an evidence-based protocol for selective CM treatment decisions based on a combination of rapid diagnostic test results, review of somatic cell count and CM records, and elucidated consequences in terms of udder health, AMU, and farm economics. Relatively fast identification of the causative agent is the most important factor in selective CM treatment protocols. Many reported studies did not indicate detrimental udder health consequences (e.g., reduced clinical or bacteriological cures, increased somatic cell count, increased culling rate, or increased recurrence of CM later in lactation) after initiating selective CM treatment protocols using on-farm testing. The magnitude of AMU reduction following a selective CM treatment protocol implementation depended on the causal pathogen distribution and protocol characteristics. Uptake of selective treatment of nonsevere CM cases differs across regions and is dependent on management systems and adoption of udder health programs. No economic losses or animal welfare issues are expected when adopting a selective versus blanket CM treatment protocol. Therefore, selective CM treatment of nonsevere cases can be a practical tool to aid AMU reduction on dairy farms.
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Affiliation(s)
- Ellen de Jong
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada T2N 4N1; One Health at UCalgary, University of Calgary, AB, Canada T2N 4N1; Mastitis Network, Saint-Hyacinthe, QC, Canada J25 2M2
| | - Kayley D McCubbin
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada T2N 4N1; One Health at UCalgary, University of Calgary, AB, Canada T2N 4N1; Mastitis Network, Saint-Hyacinthe, QC, Canada J25 2M2
| | - David Speksnijder
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, 3584 CL Utrecht, the Netherlands; University Animal Health Clinic ULP, 3481 LZ Harmelen, the Netherlands
| | - Simon Dufour
- Mastitis Network, Saint-Hyacinthe, QC, Canada J25 2M2; Department of Pathology and Microbiology, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada J2S 2M2
| | - John R Middleton
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia 65211
| | - Pamela L Ruegg
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing 48824
| | - Theo J G M Lam
- Department Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, 3584 CL Utrecht, the Netherlands; GD Animal Health, 7400 AA Deventer, the Netherlands
| | - David F Kelton
- Mastitis Network, Saint-Hyacinthe, QC, Canada J25 2M2; Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada N1G 2W1
| | - Scott McDougall
- Cognosco, Anexa, Morrinsville 3340, New Zealand; School of Veterinary Science, Massey University, Palmerston North 4442, New Zealand
| | - Sandra M Godden
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul 55108
| | | | - Päivi J Rajala-Schultz
- Department of Production Animal Medicine, Faculty of Veterinary Medicine, 00014 University of Helsinki, Finland
| | - Karin Orsel
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada T2N 4N1
| | - Sarne De Vliegher
- M-team and Mastitis and Milk Quality Research Unit, Department of Internal Medicine, Reproduction and Population Health, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium
| | - Volker Krömker
- Section for Animal Production, Nutrition and Health, Department of Veterinary and Animal Sciences, University of Copenhagen, 1870 Frederiksberg, Denmark
| | - Diego B Nobrega
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada T2N 4N1; One Health at UCalgary, University of Calgary, AB, Canada T2N 4N1
| | - John P Kastelic
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada T2N 4N1
| | - Herman W Barkema
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada T2N 4N1; One Health at UCalgary, University of Calgary, AB, Canada T2N 4N1; Mastitis Network, Saint-Hyacinthe, QC, Canada J25 2M2.
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26
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Freu G, Garcia BLN, Tomazi T, Di Leo GS, Gheller LS, Bronzo V, Moroni P, Dos Santos MV. Association between Mastitis Occurrence in Dairy Cows and Bedding Characteristics of Compost-Bedded Pack Barns. Pathogens 2023; 12:pathogens12040583. [PMID: 37111469 PMCID: PMC10146899 DOI: 10.3390/pathogens12040583] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 03/30/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Compost-bedded pack barns (CB) are receiving increasing attention as a housing system that can potentially improve the welfare of dairy cows. This study characterized the frequency and profile of pathogens isolated from clinical (CM) and subclinical (SCM) mastitis in dairy cows housed in CB. It evaluated the association between mastitis occurrence and bedding characteristics in CB systems. Over six months, seven dairy herds were visited monthly for milk and bedding sample collections. Milk samples from mastitis cases were submitted to microbiological identification by matrix-assisted laser desorption ionization-time of flight (MALDI-TOF MS). Bedding samples were submitted to physical-chemical (pH, organic matter, moisture, and carbon to nitrogen ratio) and microbiological counting (total bacterial counts, coliforms, streptococci, and staphylococci) analyses. Regression analysis was used to determine the association between mastitis occurrence and CB characteristics. Our results showed that Escherichia coli and environmental streptococci were the most frequently isolated pathogens from CM cases, while Staphylococcus chromogenes and contagious pathogens (Staphylococcus aureus and Streptococcus agalactiae) were the most commonly isolated from SCM cases. Bedding moisture content was positively associated with the incidence of CM. The bedding carbon to nitrogen ratio was negatively associated with the incidence of SCM, and the bedding total bacteria counts tended to be associated with the incidence of SCM. Bedding counts of coliforms positively associated with the prevalence of SCM. Our results can support decision-makers in the dairy industry seeking strategies for bedding management and mastitis control.
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Affiliation(s)
- Gustavo Freu
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga 13635-900, São Paulo, Brazil
- Department of Veterinary Medicine and Animal Sciences-DIVAS, University of Milan, 26900 Lodi, Italy
- Laboratorio di Malattie Infettive degli Animali-MiLab, University of Milan, 26900 Lodi, Italy
| | - Breno Luis Nery Garcia
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga 13635-900, São Paulo, Brazil
| | - Tiago Tomazi
- Ruminant Technical Services, Merck Animal Health, Kenilworth, NJ 07033, USA
| | - Gabriela Siqueira Di Leo
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga 13635-900, São Paulo, Brazil
| | - Larissa Schneider Gheller
- Department of Animal Science, School of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, São Paulo, Brazil
| | - Valerio Bronzo
- Department of Veterinary Medicine and Animal Sciences-DIVAS, University of Milan, 26900 Lodi, Italy
- Laboratorio di Malattie Infettive degli Animali-MiLab, University of Milan, 26900 Lodi, Italy
| | - Paolo Moroni
- Department of Veterinary Medicine and Animal Sciences-DIVAS, University of Milan, 26900 Lodi, Italy
- Laboratorio di Malattie Infettive degli Animali-MiLab, University of Milan, 26900 Lodi, Italy
- Quality Milk Production Services, Animal Health Diagnostic Center, Cornell University, Ithaca, NY 14853, USA
| | - Marcos Veiga Dos Santos
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga 13635-900, São Paulo, Brazil
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Ágredo-Campos ÁS, Fernández-Silva JA, Ramírez-Vásquez NF. Staphylococcus aureus, Escherichia coli, and Klebsiella spp. prevalence in bulk tank milk of Colombian herds and associated milking practices. Vet World 2023; 16:869-881. [PMID: 37235157 PMCID: PMC10206969 DOI: 10.14202/vetworld.2023.869-881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 03/29/2023] [Indexed: 05/28/2023] Open
Abstract
Background and Aim Bovine mastitis is one of the most costly and prevalent diseases in dairy herds, which can be prevented and controlled through proper milking practices, diagnosis, and elimination of chronic animals, among others. Contagious pathogens such as Staphylococcus aureus and environmental pathogens such as Escherichia coli and Klebsiella spp. can affect cows and milk for human consumption, generating a public health risk. This study aimed to estimate the prevalence of herds with somatic cell count (SCC) ≥200,000 cells/mL, S. aureus, E. coli, and Klebsiella spp., in bulk tank milk (BTM) and its associated risk factors in Colombian dairy cow herds. Materials and Methods A cross-sectional probabilistic study was carried out in 150 dairy herds located in the north of the Antioquia province. A single visit per herd was conducted, during which three BTM samples were aseptically collected. General data and milking practices were collected through an epidemiological survey applied in each herd. Results The prevalence of S. aureus, E. coli, and Klebsiella spp. were 14% (21/150), 2% (3/150), and 8% (12/150), respectively. Moreover, 95% of the herds presented an SCC of ≥200,000 cells/mL. Practices such as in-paddock milking, change of milker during the last month, use of disposable gloves, and hand disinfection were associated with increased prevalence of S. aureus, whereas proper dipping was a protective factor. Proper washing and disinfection of the milking machine, use of chlorinated disinfectants for hand hygiene, and use of disposable gloves decreased the prevalence of E. coli and Klebsiella spp. Bulk tank SCC increased in herds with 30-60 milking cows, herds with >60 milking cows, and herds with a change of milker during the last month. Hand disinfection and dipping decreased the SCC. Conclusion Staphylococcus aureus, E. coli, and Klebsiella spp. were prevalent in BTM from dairy cow herds. The risk of S. aureus isolation was higher in herds with an in-paddock milking system. The risk of E. coli and Klebsiella spp. isolation were higher in herds with >60 milking cows, with a change of milker during the last month. Processes such as avoiding changing the milker and greater control in medium and large herds could improve the SCC in BTM.
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Affiliation(s)
- Ángela Sofía Ágredo-Campos
- Centauro, Escuela de Medicina Veterinaria, Facultad de Ciencias Agrarias, Universidad de Antioquia UdeA, Calle 70 No. 52-2, Medellín, Colombia
| | - Jorge A. Fernández-Silva
- Centauro, Escuela de Medicina Veterinaria, Facultad de Ciencias Agrarias, Universidad de Antioquia UdeA, Calle 70 No. 52-2, Medellín, Colombia
| | - Nicolás F. Ramírez-Vásquez
- Centauro, Escuela de Medicina Veterinaria, Facultad de Ciencias Agrarias, Universidad de Antioquia UdeA, Calle 70 No. 52-2, Medellín, Colombia
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28
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Magagula S, Petzer IM, Famuyide IM, Karzis J. Biofilm expression and antimicrobial resistance patterns of Streptococcus uberis isolated from milk samples of dairy cows in South Africa. J DAIRY RES 2023; 90:1-5. [PMID: 36882931 DOI: 10.1017/s0022029923000158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
The research described in this Research Communication addresses the hypothesis that intramammary infections with Streptococcus uberis (S. uberis) are associated with biofilm formation, which limits antibiotic efficacy. This retrospective study investigated biofilm expression and antimicrobial resistance (AMR) patterns of 172 S. uberis infections. Isolates were recovered from milk samples of subclinical, clinical, and intramammary infection cases on 30 commercial dairy herds. We determined the presence and intensity of biofilm expression of S. uberis isolates in vitro in three somatic cell count categories to recognise their AMR patterns. An automated minimum inhibitory concentration system with a commercially available panel of 23 antimicrobial agents evaluated AMR, while biofilm determination was conducted using a microplate method. The study established that all the S. uberis isolates assessed expressed biofilm with the following varying degrees of intensities: 30 (17.8%) strong, 59 (34.9%) medium and 80 (47.3%) weak biofilms. The newly registered UBAC mastitis vaccine containing biofilm adhesion components may, therefore, be a viable option for proactive mastitis management under field conditions. No differences were identified between biofilm intensity and the three somatic cell count groups. Most S. uberis isolates indicated a high-level sensitivity to the antimicrobial agents tested. Resistances were present in 8.7, 8.1 and 7.0% cases to rifampin, minocycline and tetracycline, respectively. Multidrug resistance was observed in 6.4%, emphasising AMR to antibiotics used in human medicine only. The low overall resistance suggests that farmers adhere to the prudent use of antimicrobials in the dairy industry.
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Affiliation(s)
- Sabelo Magagula
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Old Soutpan Road, Onderstepoort 0110, South Africa
| | - Inge-Mariè Petzer
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Old Soutpan Road, Onderstepoort 0110, South Africa
| | - Ibukun Michael Famuyide
- Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Old Soutpan Road, Onderstepoort 0110, South Africa
| | - Joanne Karzis
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Old Soutpan Road, Onderstepoort 0110, South Africa
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Bonardi S, Cabassi CS, Fiaccadori E, Cavirani S, Parisi A, Bacci C, Lamperti L, Rega M, Conter M, Marra F, Crippa C, Gambi L, Spadini C, Iannarelli M, Paladini C, Filippin N, Pasquali F. Detection of carbapenemase- and ESBL-producing Klebsiella pneumoniae from bovine bulk milk and comparison with clinical human isolates in Italy. Int J Food Microbiol 2023; 387:110049. [PMID: 36521239 DOI: 10.1016/j.ijfoodmicro.2022.110049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/30/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
Klebsiella pneumoniae is the most common Klebsiella species infecting animals and is one of the causing agents of mastitis in cows. The rise of antimicrobial resistance in K. pneumoniae, particularly in strains producing extended-spectrum β-lactamases (ESBLs) and/or carbapenemases, is of concern worldwide. Recently (Regulation UE No 2022/1255), carbapenems and cephalosporins in combination with β-lactamase inhibitors have been reserved only to human treatments in the European Union. The aim of this study was to investigate the role of cattle as carrier of human pathogenic carbapenem-resistant (CR) and ESBL-producing K. pneumoniae. On this purpose, a study involving 150 dairy farms in Parma province (Northern Italy) and 14 non replicate K. pneumoniae isolates from patients admitted at Parma University-Hospital was planned. Four multidrug resistant (MDR) K. pneumoniae strains were detected from 258 milk filters collected between 2019 and 2021. One carbapenemase KPC-3-positive K. pneumoniae ST307 (0.4 %; 95 % CI - 0.07 - 2.2) was detected in milk filters. The isolate also harboured OXA-9, CTX-M-15 and SHV-106 determinants, together with genes conferring resistance to aminoglycosides (aac(3')-IIa, aph (3″)-Ib, aph (6)-Id), fluoroquinolones (oqxA, oqxB, qnrB1), phosphonic acids (fosA6), sulphonamides (sul2), tetracyclines (tet(A)6) and trimethoprim (dfrA14). One KPC-3-producing K. pneumoniae ST307 was identified also among the human isolates, thus suggesting a possible circulation of pathogens out of the clinical settings. The remaining three bovine isolates were MDR ESBL-producing K. pneumoniae characterized by different genomic profiles: CTX-M-15, TEM-1B and SHV-187 genes (ST513); CTX-M-15 and SHV-145 (ST307); SHV-187 and DHA-1 (ST307). Occurrence of ESBL-producing K. pneumoniae in milk filters was 1.2 % (95 % CI 0.4-3.4). All the isolates showed resistance to aminoglycosides, 3rd-generation cephalosporins, and fluoroquinolones. Among the human isolates, two multidrug resistant ESBL-producing K. pneumoniae ST307 were found, thus confirming the circulation of this high-risk lineage between humans and cattle. Our findings suggest that food-producing animals can carry human pathogenic microorganisms harboring resistance genes against carbapenems and 3rd-generation cephalosporins, even if not treated with such antimicrobials. Moreover, on the MDR K. pneumoniae farms, the antimicrobial use was much higher than the Italian median value, thus highlighting the importance of a more prudent use of antibiotics in animal productions.
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Affiliation(s)
- S Bonardi
- Department of Veterinary Science, University of Parma, Strada del Taglio 10, 43126 Parma, Italy.
| | - C S Cabassi
- Department of Veterinary Science, University of Parma, Strada del Taglio 10, 43126 Parma, Italy
| | - E Fiaccadori
- Nephrology Unit, Parma University-Hospital, Department of Medicine and Surgery, Parma University, Via Gramsci 24, 43126 Parma, Italy
| | - S Cavirani
- Department of Veterinary Science, University of Parma, Strada del Taglio 10, 43126 Parma, Italy
| | - A Parisi
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Via Chiancolla, 1, 70017 Putignano, BA, Italy
| | - C Bacci
- Department of Veterinary Science, University of Parma, Strada del Taglio 10, 43126 Parma, Italy
| | - L Lamperti
- Department of Veterinary Science, University of Parma, Strada del Taglio 10, 43126 Parma, Italy
| | - M Rega
- Department of Veterinary Science, University of Parma, Strada del Taglio 10, 43126 Parma, Italy
| | - M Conter
- Department of Veterinary Science, University of Parma, Strada del Taglio 10, 43126 Parma, Italy
| | - F Marra
- Department of Veterinary Science, University of Parma, Strada del Taglio 10, 43126 Parma, Italy
| | - C Crippa
- Food Safety Unit, Department of Agricultural and Food Sciences Alma Mater Studiorum, University of Bologna, Via del Florio, 2, 40064 Ozzano dell'Emilia, BO, Italy
| | - L Gambi
- Food Safety Unit, Department of Agricultural and Food Sciences Alma Mater Studiorum, University of Bologna, Via del Florio, 2, 40064 Ozzano dell'Emilia, BO, Italy
| | - C Spadini
- Department of Veterinary Science, University of Parma, Strada del Taglio 10, 43126 Parma, Italy
| | - M Iannarelli
- Department of Veterinary Science, University of Parma, Strada del Taglio 10, 43126 Parma, Italy
| | - C Paladini
- National Veterinary Service, Via Vasari 13/A, 43126 Parma, Italy
| | - N Filippin
- National Veterinary Service, Via Vasari 13/A, 43126 Parma, Italy
| | - F Pasquali
- Food Safety Unit, Department of Agricultural and Food Sciences Alma Mater Studiorum, University of Bologna, Via del Florio, 2, 40064 Ozzano dell'Emilia, BO, Italy
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30
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Orsi H, Guimarães FF, Leite DS, Guerra ST, Joaquim SF, Pantoja JCF, Hernandes RT, Lucheis SB, Ribeiro MG, Langoni H, Rall VLM. Characterization of mammary pathogenic Escherichia coli reveals the diversity of Escherichia coli isolates associated with bovine clinical mastitis in Brazil. J Dairy Sci 2023; 106:1403-1413. [PMID: 36567244 DOI: 10.3168/jds.2022-22126] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 09/21/2022] [Indexed: 12/24/2022]
Abstract
Mammary pathogenic Escherichia coli (MPEC) is one of the most common pathogens associated with clinical mastitis. We analyzed isolates obtained from milk samples of cows with clinical mastitis, collected from 10 farms in Brazil, to verify molecular and phenotypic characteristics. A total of 192 (4.5%) mammary pathogenic E. coli isolates were obtained from 4,275 milk samples analyzed, but we tested 161. We assigned most of these isolates to E. coli phylogroups B1 (52.8%) and A (36.6%), although phylogroups B2, C, D, E, and unknown also occurred. All isolates were assessed for the presence of several genes encoding virulence factors, such as adhesins (sfaDE, papC, afaBC III, ecpA, fimH, papA, and iha), toxins (hlyA, cnf1, sat, vat, and cdt), siderophores (iroN, irp2, iucD, ireA, and sitA), an invasion protein (ibeA), and serum resistance proteins (traT, KpsMTII, and ompT), and isolates from phylogroups B1, B2, and E showed up to 8 genes. Two isolates harbored the locus of enterocyte effacement (escN+) and lack the bundle-forming pilus (bfpB-) operon, which corresponds to a molecular profile of a subgroup of diarrheagenic E. coli (aEPEC), thus being classified as hybrid MPEC/aEPEC isolates. These isolates displayed a localized adherence-like pattern of adherence in HeLa cells and were able to promote F-actin polymerization underneath adherent bacteria. Based on the pulsed-field gel electrophoresis analyses, considerable genetic variability was observed. A low index of antimicrobial resistance was observed and 2 extended-spectrum β-lactamase-producing E. coli were identified, both harboring blaCTX-M15 gene, and were classified as ST10 and ST993 using multilocus sequence typing. A total of 148 (91.2%) isolates were weak biofilm producers or formed no biofilm. Because raw milk is still frequently consumed in Brazil, the occurrence of virulence factor-encoding genes from extraintestinal or diarrheagenic E. coli added to the presence of extended-spectrum β-lactamase-producing isolates can turn this veterinary medicine problem into a public health concern.
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Affiliation(s)
- Henrique Orsi
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University, Botucatu, SP 18618 689, Brazil
| | - Felipe F Guimarães
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University, Botucatu, SP 18618 681, Brazil
| | - Domingos S Leite
- Department of Genetics, Evolution, Microbiology and Immunology, University of Campinas, SP 13083 970, Brazil
| | - Simony T Guerra
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University, Botucatu, SP 18618 681, Brazil
| | - Sâmea F Joaquim
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University, Botucatu, SP 18618 681, Brazil
| | - Jose C F Pantoja
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University, Botucatu, SP 18618 681, Brazil
| | - Rodrigo T Hernandes
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University, Botucatu, SP 18618 689, Brazil
| | - Simone B Lucheis
- Paulista Agency of Agribusiness Technology, Bauru, SP 17030 000, Brazil
| | - Márcio G Ribeiro
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University, Botucatu, SP 18618 681, Brazil
| | - Helio Langoni
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University, Botucatu, SP 18618 681, Brazil
| | - Vera L M Rall
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University, Botucatu, SP 18618 689, Brazil.
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31
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Zadoks RN, Scholz E, Rowe SM, Norris JM, Pooley HB, House J. A framework for evaluation of on-farm mastitis diagnostics in Australia. Aust Vet J 2023; 101:142-152. [PMID: 36635984 DOI: 10.1111/avj.13228] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/14/2022] [Accepted: 12/23/2022] [Indexed: 01/14/2023]
Abstract
Numerous culture-based diagnostics are available on the Australian and international markets for on-farm detection of bacterial pathogens in milk. Use of such diagnostics may provide an opportunity to improve the prudent use of antimicrobials in udder health management. Farms are low-resource settings in terms of diagnostic microbiology capacity. The World Health Organisation has identified criteria for the evaluation of diagnostic tests in low resource settings based on Accuracy, Sensitivity, Specificity, User-friendliness, being Rapid or Robust, Equipment-free and being Deliverable (ASSURED). Here, we review how those criteria can be interpreted in the context of microbiological diagnosis of mastitis pathogens, and how on-farm diagnostics that are currently available in Australia perform relative to ASSURED criteria. This evaluation identifies multiple trade-offs, both with regard to scientific criteria and with regards to convenience criteria. More importantly, the purpose of testing may differ between farms, and test performance should be evaluated relative to its intended use. The ability of on-farm mastitis diagnostics to inform mastitis treatment decision-making in a timely and cost-effective manner depends not just on test characteristics but also on farm-specific pathogen prevalence, and on the farm enterprise's priorities and the farm manager's potential courses of action. With most assay evaluations to date conducted in professional laboratories, there is a surprising dearth of information on how well any of the diagnostic tests perform on-farm and, indeed, of the on-farm decision-making processes that they aim to inform.
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Affiliation(s)
- R N Zadoks
- Sydney School of Veterinary Science, Faculty of Science, University of Sydney, Sydney, New South Wales, Australia
| | - E Scholz
- School of Agricultural, Environmental and Veterinary Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia
| | - S M Rowe
- Sydney School of Veterinary Science, Faculty of Science, University of Sydney, Sydney, New South Wales, Australia
| | - J M Norris
- Sydney School of Veterinary Science, Faculty of Science, University of Sydney, Sydney, New South Wales, Australia
| | - H B Pooley
- Sydney School of Veterinary Science, Faculty of Science, University of Sydney, Sydney, New South Wales, Australia
| | - J House
- Sydney School of Veterinary Science, Faculty of Science, University of Sydney, Sydney, New South Wales, Australia
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Paramasivam R, Gopal DR, Dhandapani R, Subbarayalu R, Elangovan MP, Prabhu B, Veerappan V, Nandheeswaran A, Paramasivam S, Muthupandian S. Is AMR in Dairy Products a Threat to Human Health? An Updated Review on the Origin, Prevention, Treatment, and Economic Impacts of Subclinical Mastitis. Infect Drug Resist 2023; 16:155-178. [PMID: 36636377 PMCID: PMC9831082 DOI: 10.2147/idr.s384776] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 12/20/2022] [Indexed: 01/07/2023] Open
Abstract
Background Bovine mastitis is the most frequent and costly illness impacting dairy herds worldwide. The presence of subclinical mastitis in dairy cows has an impact on the decreased output of milk and milk quality, culling of affected cows, mortality rate, as well as mastitis-related treatment expenses, generating significant financial loss to the dairy industry. The pathogenic bacteria invade through the mammary gland, which then multiply in the milk-producing tissues causing infection, and the presence of pathogenic bacteria in milk is concerning, jeopardizes human health, and also has public health consequences. Intervention to promote herd health is essential to protect public health and the economy. Results This review attempts to provide an overview of subclinical mastitis, including mastitis in different species, the effect of mastitis on human health and its pathogenic mechanism, the prevalence and incidence of subclinical mastitis, and current preventive, diagnostic, and treatment methods for subclinical mastitis. It also elaborates on the management practices that should be followed by the farms to improve herd immunity and health. Conclusion This review brings the importance of the threat of antimicrobial resistance organisms to the dairy industry. Furthermore, this review gives a glimpse of the economic consequences faced by the farmers and a futuristic mastitis market analysis in the dairy industry.
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Affiliation(s)
- Ragul Paramasivam
- Research and Development Division, Chimertech Private Limited, Chennai, India
| | - Dhinakar Raj Gopal
- Department of Animal Biotechnology, Madras Veterinary College, Tamilnadu Veterinary and Animal Science University (TANUVAS), Chennai, 600007, India
| | | | | | | | - Bhavadharani Prabhu
- Research and Development Division, Chimertech Private Limited, Chennai, India
| | - Veeramani Veerappan
- Research and Development Division, Chimertech Private Limited, Chennai, India
| | | | | | - Saravanan Muthupandian
- AMR and Nanotherapeutics Lab, Centre for Transdisciplinary Research (CFTR), Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, India,Division of Biomedical Science, College of Health Sciences, School of Medicine, Mekelle University, Mekelle, Ethiopia,Correspondence: Saravanan Muthupandian, Email
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Song J, Xiang W, Wang Q, Yin J, Tian T, Yang Q, Zhang M, Ge G, Li J, Diao N, Liu F, Shi K, Cai R, Du R, Gong Q. Prevalence and risk factors of Klebsiella spp. in milk samples from dairy cows with mastitis-A global systematic review. Front Vet Sci 2023; 10:1143257. [PMID: 37035815 PMCID: PMC10073557 DOI: 10.3389/fvets.2023.1143257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 03/02/2023] [Indexed: 04/11/2023] Open
Abstract
Introduction The overall prevalence of Klebsiella spp., a group of important zoonotic pathogens, in the global dairy herds and the risk of cross-species transmission between humans and dairy cows remain to be clarified. This systematic review aimed to determine the prevalence of Klebsiella spp. in milk samples from dairy cows with mastitis worldwide and to assess the factors influencing the prevalence of these strains. Methods Qualified studies published from 2007 to 2021 were retrieved from ScienceDirect, Web of Science, PubMed, WanFang Database, China National Knowledge Infrastructure (CNKI), and VIP Chinese Journal Database. Calculations of prevalence and their 95% confidence intervals (CIs) were performed for all the studies using the Freeman-Tukey double arcsine transformation (PFT). Results A total of 79,852 milk samples from 55 manuscripts were examined in this meta-analysis, and 2,478 samples were found to be positive for Klebsiella spp. The pooled prevalence estimates worldwide were 7.95% (95% CI: 6.07%-10.06%), with significant heterogeneity (I 2 = 98.8%, p = 0). The sampling period of 2013-2020 had a higher (p < 0.05) Klebsiella-positive proportion of milk samples (12.16%, 95% CI: 8.08%-16.90%) than that of 2007-2012 (3.85%, 95% CI: 2.67%-5.21%), indicating that bovine mastitis caused by Klebsiella may become increasingly prevalent. The risk factors for the high prevalence of Klebsiella in milk samples mainly included: economic development level (developing countries; 11.76%, 95% CI: 8.25%-15.77%), mastitis type (CM; 11.99%, 95% CI: 8.62%-15.79%), and population density (>500 per sq km; 10.28%, 95% CI: 2.73%-21.58%). Additionally, a bivariate meta-regression analysis revealed that the multidrug-resistance (MDR) rate of the epidemic strains was also closely related to economic development level (R 2 = 78.87%) and population density (R 2 = 87.51%). Discussion Due to the potential risk of cross-species transmission between humans and cows, the prevalence of mastitis milk-derived Klebsiella and its high MDR rate need to be monitored, especially in developing countries with high population densities.
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Affiliation(s)
- Jinming Song
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Wentao Xiang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Qi Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Jiying Yin
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Tian Tian
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Qizhu Yang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Meng Zhang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Guiyang Ge
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Jianming Li
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
| | - Naichao Diao
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
| | - Fei Liu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Kun Shi
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
| | - Ruopeng Cai
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- *Correspondence: Ruopeng Cai
| | - Rui Du
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
- Rui Du
| | - Qinglong Gong
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
- Qinglong Gong
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Fu S, Wen C, Wang Z, Qiu Y, Zhang Y, Zuo J, Xu Y, Han X, Luo Z, Chen W, Miao J. Molecular Epidemiology and Antimicrobial Resistance of Outbreaks of Klebsiella pneumoniae Clinical Mastitis in Chinese Dairy Farms. Microbiol Spectr 2022; 10:e0299722. [PMID: 36374018 PMCID: PMC9769803 DOI: 10.1128/spectrum.02997-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 10/10/2022] [Indexed: 11/16/2022] Open
Abstract
Klebsiella pneumoniae is an opportunistic pathogen that causes serious infections in humans and animals. However, the availability of epidemiological information on clinical mastitis due to K. pneumoniae is limited. To acquire new information regarding K. pneumoniae mastitis, data were mined about K. pneumoniae strains on dairy cattle farms (farms A to H) in 7 Chinese provinces in 2021. Hypermucoviscous strains of K. pneumoniae were obtained by the string test. MICs of antimicrobial agents were determined via the broth microdilution method. Ten antimicrobial resistance genes and virulence genes were identified by PCR. The prevalence of K. pneumoniae was 35.91% (65/181), and 100% of the bacteria were sensitive to enrofloxacin. Nine antimicrobial resistance genes and virulence genes were identified and compared among farms. The hypermucoviscous phenotype was present in 94.44% of isolates from farm B, which may be a function of the rmpA virulence gene. Based on these data, the multidrug-resistant strains SD-14 and HB-21 were chosen and sequenced. Genotypes were assayed for K. pneumoniae isolates from different countries and different hosts using multilocus sequence typing (MLST). Ninety-four sequence types (STs) were found, and 6 STs present a risk for spreading in specific regions. Interestingly, ST43 was observed in bovine isolates for the first time. Our study partially reveals the current distribution characteristics of bovine K. pneumoniae in China and may provide a theoretical basis for the prevention and treatment of bovine K. pneumoniae mastitis. IMPORTANCE K. pneumonia is ubiquitous in nature and infects a wide range of hosts, including animals, and humans. It is one of the leading inducements of clinical mastitis (CM) in dairy cows, a prevalent and costly disease that is predominantly associated with bacterial infection. In general, CM caused by Gram-negative bacteria is more difficult to cure than that associated with Gram-positive pathogens, with an average cost per case of 211.03 U.S. dollars (USD) for Gram-negative bacterial infections compared with 133.73 USD for Gram-positive bacterial CM cases. After Escherichia coli, K. pneumoniae is the second most common Gram-negative cause of bovine CM, but it is the most detrimental in terms of decreased milk yield, discarded milk, treatment costs, death, and culling. In view of the economic implications of K. pneumoniae infection in dairy farming, research into population structure and antibiotic resistance is particularly important.
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Affiliation(s)
- Shaodong Fu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Physiology and Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Chen Wen
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Physiology and Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Zhenglei Wang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Physiology and Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yawei Qiu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Physiology and Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yihao Zhang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Physiology and Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Jiakun Zuo
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Yuanyuan Xu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Physiology and Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Xiangan Han
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Zhenhua Luo
- School of Water, Energy and Environment, Cranfield University, Cranfield, United Kingdom
| | - Wei Chen
- Engineering Laboratory of Tarim Animal Diseases Diagnosis and Control, Xinjiang Production and Construction Crops, College of Animal Science, Tarim University, Tarim, China
| | - Jinfeng Miao
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Physiology and Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
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Ameni G, Bayissa B, Zewude A, Degefa BA, Mohteshamuddin K, Kalaiah G, Alkalbani MS, Eltahir YM, Elfatih Hamad M, Tibbo M. Retrospective study on bovine clinical mastitis and associated milk loss during the month of its peak occurrence at the National Dairy Farm in the Emirate of Abu Dhabi, United Arab Emirates. Front Vet Sci 2022; 9:1070051. [PMID: 36605769 PMCID: PMC9807804 DOI: 10.3389/fvets.2022.1070051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022] Open
Abstract
Background Commercial dairy establishments are relatively young in the United Arab Emirates (UAE), and as a result, there is lack of epidemiological data on mastitis in dairy farms. Methods A retrospective data of seven years (2015-2021) were used to estimate the cumulative average monthly incidence rate of bovine clinical mastitis and evaluate associated milk loss at the National Dairy Farm. Data were extracted from the records of lactating dairy cows (n = 1300-1450) and analyzed using repeated measure and one-way ANOVA, non-parametric Spearman correlation, paired and unpaired t tests. Results The highest average cumulative monthly incidence rate was 49 cases per 1000 cows-year that was recorded in 2019 while the lowest was 19 cases per 1000 cows-year in 2021. The cumulative average monthly incidence rate of clinical mastitis significantly (p < 0.001) varied among the seven years. The cumulative average monthly incidence rate was associated with average monthly humidity (p < 0.01) and average monthly rainfall (p < 0.05); however, it was not associated with the average monthly temperature (p > 0.05). The average daily milk yield of cows with clinical mastitis (Mean ± SEM; 18.6 ± 0.54 kg) was significantly (p < 0.001) lower than the average daily milk yield of clinical mastitis free cows (40.5 ± 0.29 kg). The largest average monthly milk loss due to clinical mastitis was 5% of the average total monthly milk production in 2019 while the lowest was 2% of the average total monthly milk production in 2021. Conclusion The result of the study indicated the direct influence of weather conditions such as increased rainfall and humidity, which caused an upsurge in the incidence rate of clinical mastitis, leading to an increased loss in milk and hence the economy of the dairy farm. Proactive preventive measures along with good dairy farm practices that help mitigate the impacts of harsh weather conditions are recommended.
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Affiliation(s)
- Gobena Ameni
- Department of Veterinary Medicine, College of Food and Agriculture, United Arab Emirates University, Al Ain, United Arab Emirates,Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia,*Correspondence: Gobena Ameni ✉; ✉
| | - Berecha Bayissa
- Vaccine Production and Drug Formulation Directorate, National Veterinary Institute, Bishoftu, Ethiopia
| | - Aboma Zewude
- Department of Veterinary Medicine, College of Food and Agriculture, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Berhanu Adenew Degefa
- Department of Integrative Agriculture, College of Food and Agriculture, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Khaja Mohteshamuddin
- Department of Veterinary Medicine, College of Food and Agriculture, United Arab Emirates University, Al Ain, United Arab Emirates
| | | | - Meera Saeed Alkalbani
- Animal Health Division, Abu Dhabi Agriculture and Food Safety Authority, Abu Dhabi, United Arab Emirates
| | - Yassir Mohammed Eltahir
- Animal Health Division, Abu Dhabi Agriculture and Food Safety Authority, Abu Dhabi, United Arab Emirates
| | - Mohamed Elfatih Hamad
- Department of Veterinary Medicine, College of Food and Agriculture, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Markos Tibbo
- Subregional Office for the Gulf-Cooperation Council States and Yemen, Food and Agriculture Organization of the United Nations, Abu Dhabi, United Arab Emirates
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Rahmeh R, Akbar A, Alomirah H, Kishk M, Al-Ateeqi A, Shajan A, Alonaizi T, Esposito A. Assessment of mastitis in camel using high-throughput sequencing. PLoS One 2022; 17:e0278456. [PMID: 36476716 PMCID: PMC9728900 DOI: 10.1371/journal.pone.0278456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 11/17/2022] [Indexed: 12/12/2022] Open
Abstract
Camel milk is recognized as a functional food with significant economic value. Mastitis is one of the most common and costly diseases in the dairy industry. Mastitis, which is caused by pathogens such as bacteria, viruses, fungi, and algae, has an impact on the quality and quantity of milk produced as well as animal health and welfare. There is a paucity of data on the etiological factors that cause camel mastitis. This study reports the bacterial and fungal community involved in clinical camel mastitis using Illumina amplicon sequencing. A total of 25 milk samples were analyzed, including 9 samples with mastitis and 16 healthy samples. The bacterial community in healthy samples was significantly more diverse and abundant than in mastitis samples. The fungal population in mastitis samples, on the other hand, was more diverse and abundant. As compared to healthy samples, the genera Staphylococcus, Streptococcus, Schlegelella, unclassified Enterobacteriaceae, Lactococcus, Jeotgalicoccus. and Klebsiella were found to be abundant in mastitic milk. However, the genera Corynebacterium, Enteractinococcus, unclassified Sphingomonadaceae, Atopostipes, Paenibacillus, Pseudomonas, Lactobacillus, Sphingomonas, Pediococcus and Moraxella were reduced. In the fungal community, mastitis caused a significant increase in the relative abundance of the majority of taxa, including Candida, Phanerochaete, Aspergillus, Cladosporium and unclassified Pyronemataceae, while Penicillium and Alternaria showed a decline in relative abundance. In the bacterial and fungal communities, the discriminant analysis showed 19 and 5 differently abundant genera in healthy milk and mastitic milk, respectively. In conclusion, this study showed a microbiome dysbiosis linked to clinical camel mastitis, with opportunistic pathogens outgrowing commensal bacteria that were reduced. These findings are essential in designing an appropriate control program in the camel dairy herd, as well as in preventing and treating camel mastitis.
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Affiliation(s)
- Rita Rahmeh
- Environment & Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait City, Kuwait
- * E-mail:
| | - Abrar Akbar
- Environment & Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait City, Kuwait
| | - Husam Alomirah
- Environment & Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait City, Kuwait
| | - Mohamed Kishk
- Environment & Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait City, Kuwait
| | - Abdulaziz Al-Ateeqi
- Environment & Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait City, Kuwait
| | - Anisha Shajan
- Environment & Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait City, Kuwait
| | - Thnayan Alonaizi
- Environment & Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait City, Kuwait
| | - Alfonso Esposito
- International Centre for Genetic Engineering and Biotechnology, Trieste, Italy
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Campra NA, Reinoso EB, Montironi ID, Moliva MV, Raviolo J, Ruiz Moreno F, Marin C, Camacho NM, Paredes AJ, Morán MC, Estein SM, Maletto BA, Palma SD, Cariddi LN. Spray-drying-microencapsulated Minthostachys verticillata essential oil and limonene as innovative adjuvant strategy to bovine mastitis vaccines. Res Vet Sci 2022; 149:136-150. [PMID: 35792419 DOI: 10.1016/j.rvsc.2022.04.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/28/2022] [Accepted: 04/05/2022] [Indexed: 11/23/2022]
Abstract
Design of innovative adjuvant strategies with an appropriate safety profile is relevant to developed subunit or inactivated microorganism vaccines for bovine mastitis. Minthostachys verticillata essential oil (EO) has demonstrated ability to stimulate the innate immune response and adjuvant effect similar to Al(OH)3. Here we evaluated the adjuvant effect of EO and its metabolite, limonene (L) alone and microencapsulated by spray-drying, using an inactivated Enterococcus faecium strain bovine-mastitis inducer. The gas chromatography-mass spectrometry analysis showed that microencapsulation process did not alter the EO or L chemistry. Microencapsulated EO (McEO) or L (McL) (2.0, 2.5 and 5.0 mg/ml) decreased the viability of bovine mammary gland epithelial cells in a dose-dependent way. Balb/c mice (n = 32) were subcutaneously inoculated (day 0) and revaccinated (day 14 and 28) with saline solution, inactivated bacteria alone or combined with Incomplete Freund's Adjuvant; EO or L (2.5 mg/ml); McEO or McL (5.0 mg/ml); or microcapsule wall material (Mc) alone (2.5 mg/ml). EO, L, McEO and McL stimulated E. faecium-specific IgG (IgG1 or IgG2a) with opsonizing capacity and increased the proportion of CD4+ and CD8+ T cells producers of IFN-γ. Microencapsulation was an effective strategy to increase the adjuvant potential of EO or L. These new adjuvants deserve further study to evaluate their incorporation into vaccines for bovine mastitis.
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Affiliation(s)
- Noelia Anahí Campra
- Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Facultad de Ciencias Exactas Físico-Químicas y Naturales, Río Cuarto, Córdoba, Argentina; Instituto de Biotecnología Ambiental y Salud (INBIAS), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Río Cuarto, Córdoba, Argentina
| | - Elina Beatriz Reinoso
- Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Facultad de Ciencias Exactas Físico-Químicas y Naturales, Río Cuarto, Córdoba, Argentina; Instituto de Biotecnología Ambiental y Salud (INBIAS), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Río Cuarto, Córdoba, Argentina
| | - Ivana Dalila Montironi
- Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Facultad de Ciencias Exactas Físico-Químicas y Naturales, Río Cuarto, Córdoba, Argentina; Instituto de Biotecnología Ambiental y Salud (INBIAS), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Río Cuarto, Córdoba, Argentina
| | - Melina Vanesa Moliva
- Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Facultad de Ciencias Exactas Físico-Químicas y Naturales, Río Cuarto, Córdoba, Argentina; Instituto de Biotecnología Ambiental y Salud (INBIAS), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Río Cuarto, Córdoba, Argentina
| | - José Raviolo
- Departamento de Producción Animal, Universidad Nacional de Río Cuarto, Facultad de Agronomía y Veterinaria, Río Cuarto, Córdoba, Argentina
| | - Federico Ruiz Moreno
- Departamento de Bioquímica Clínica, Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Córdoba, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Córdoba, Argentina
| | - Constanza Marin
- Departamento de Bioquímica Clínica, Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Córdoba, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Córdoba, Argentina
| | - Nahuel Matías Camacho
- Departamento de Ciencias Farmacéuticas, Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina
| | - Alejandro Javier Paredes
- Departamento de Ciencias Farmacéuticas, Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina; School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland, UK
| | - María Celeste Morán
- Centro de Investigación Veterinaria Tandil (CIVETAN-CONICET-CICPBA), Facultad de Ciencias Veterinarias (FCV), Universidad Nacional del Centro de la Provincia de Buenos Aires (UNCPBA), Tandil, Buenos Aires, Argentina
| | - Silvia Marcela Estein
- Centro de Investigación Veterinaria Tandil (CIVETAN-CONICET-CICPBA), Facultad de Ciencias Veterinarias (FCV), Universidad Nacional del Centro de la Provincia de Buenos Aires (UNCPBA), Tandil, Buenos Aires, Argentina
| | - Belkys Angélica Maletto
- Departamento de Bioquímica Clínica, Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Córdoba, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Córdoba, Argentina
| | - Santiago Daniel Palma
- Departamento de Ciencias Farmacéuticas, Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina
| | - Laura Noelia Cariddi
- Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Facultad de Ciencias Exactas Físico-Químicas y Naturales, Río Cuarto, Córdoba, Argentina; Instituto de Biotecnología Ambiental y Salud (INBIAS), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Río Cuarto, Córdoba, Argentina.
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de Oliveira RP, da Silva JG, Aragão BB, de Carvalho RG, Juliano MA, Frazzon J, Farias MPO, Mota RA. Diversity and emergence of multi-resistant Staphylococcus spp. isolated from subclinical mastitis in cows in of the state of Piauí, Brazil. Braz J Microbiol 2022; 53:2215-2222. [PMID: 36074251 PMCID: PMC9679087 DOI: 10.1007/s42770-022-00822-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 08/30/2022] [Indexed: 01/13/2023] Open
Abstract
This research aimed to identify the diversity of bacterial species of the genus Staphylococcus spp. in subclinical mastitis in dairy herds in the state of Piauí, Northeastern Brazil, and to evaluate the phenotypic and genotypic resistance profile. Samples were obtained from a total of 17 dairy farms, amounting to 321 positive samples in the California Mastitis Test. Staphylococcus spp. were identified by matrix-assisted laser desorption ionization time-of-flight mass spectroscopy. Subsequently, an antibiogram was performed, and a polymerase chain reaction was carried out to screen for resistance genes in the isolates. Among all the isolates, 59.45% (110/185) belonged to the Staphylococcus genus. Moreover, the following Staphylococcus spp. were identified Staphylococcus aureus, 68.1% (75/110); Staphylococcus chromogenes, 12.7% (14/110); Staphylococcus epidermidis, 5.4% (6/110); Staphylococcus sciuri, 4.5% (5/110); Staphylococcus warneri, 2.7% (3/110); Staphylococcus haemolyticus, 1.8% (2/110); Staphylococcus hominis, 1.8% (2/110); Staphylococcus arlettae, 0.9% (1/110); Staphylococcus capitis, 0.9% (1/110); and Staphylococcus gallinarum, 0.9% (1/110). The antibiogram showed a high frequency of resistance to penicillin and ampicillin, 70.0% (77/110) and 61.8% (68/110), respectively, and a low frequency of resistance to gentamicin and vancomycin, 10.9% (12/110) and 11.8% (13/110), respectively. In the genotypic tests for the different species of Staphylococcus spp., the occurrence of the blaZ gene was observed in 60.9% (67/110) of the isolates, followed by tetL and tetM, both with 20.0% (22/110) each, and the mecA and vanB genes were detected in 0.9% (1/110) of the samples. The identification of all Staphylococcus species isolated from subclinical mastitis cases and the phenotypic and genotypic resistance characterization in these isolates is of great importance for dairy farming in the state of Piauí, as well as for public health.
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Affiliation(s)
| | - José Givanildo da Silva
- Departamento de Medicina Veterinária, Universidade Federal Rural de Pernambuco, Recife, PE, Brasil
| | - Breno Bezerra Aragão
- Departamento de Medicina Veterinária, Universidade Federal Rural de Pernambuco, Recife, PE, Brasil
| | | | | | - Jeverson Frazzon
- Departamento de Microbiologia, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, RS, Brasil
| | | | - Rinaldo Aparecido Mota
- Departamento de Medicina Veterinária, Universidade Federal Rural de Pernambuco, Recife, PE, Brasil
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ATALAY M, UÇAN US. Determination of antibiotic resistance and biofilm formation in Klebsiella strains isolated from bovine mastitis cases. MEHMET AKIF ERSOY ÜNIVERSITESI VETERINER FAKÜLTESI DERGISI 2022. [DOI: 10.24880/maeuvfd.1110644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Mastitis is diseases of dairy cows with a high economic impact. Bovine mastitis is caused by a wide range of bacterial pathogens. As one of the major environmental pathogens Klebsiella ssp. was investigated in this study by some phenotypic characteristics like antibiotic resistance patterns and biofilm formation properties. A number of 483 cows by dairy farms around the Konya were examined by California Mastitis Test (CMT) producing 36 positive in terms of subclinical mastitis. A further 19 samples from clinical mastitic udders were also collected. Samples were inoculated onto Trypticase Soy Agar medium enriched with sheep blood and incubated aerobicaly for 24-48 hours at 37 °C. By morphological, biochemical and cultural charcateristics 14 isolates out of 37 coliform were identified as Klebsiella ssp. The double disc synergy method and Congo Red Agar test were used to perform antibiotic susceptibility and in vitro slime forming properties, respectively. Resistances to the antibiotics Ampicillin, Carbenicillin, Cephotaxime, Chloramphenicol, Erythromycin, Gentamicin, Neomycin, Oxytetracycline, Sulphamethoxazole/Trimpethoprim, Amoxicillin-Clavulanate and Imipenem were 78.5%, 78.5%, 35.7%, 42.8%, 100%, 7%, 7%, 50%, 14%, 21% and 7%, respectively. Three of the total isolets produced biofilm only. This appears to the first report on ESBL producing Klebsiella ssp from subclinical cases of bovine mastitis in Konya, Türkiye. Presently, two numbers of antimicrobial combinations to treat bovine cases are recommended by this work. In conclusion, because of costly challange nature of Klebsiella caused bovine mastitis implemantation of an effective mastitis control program should be used in local farms from Konya.
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Affiliation(s)
| | - Uçkun Sait UÇAN
- Department of Microbiology, Faculty of Veterinary Medicine, Selçuk University
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40
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Genetic and Antimicrobial Resistance Profiles of Mammary Pathogenic E. coli (MPEC) Isolates from Bovine Clinical Mastitis. Pathogens 2022; 11:pathogens11121435. [PMID: 36558768 PMCID: PMC9781227 DOI: 10.3390/pathogens11121435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 12/02/2022] Open
Abstract
Mammary pathogenic E. coli (MPEC) is one of the main pathogens of environmental origin responsible for causing clinical mastitis worldwide. Even though E. coli are strongly associated with transient or persistent mastitis and the economic impacts of this disease, the virulence factors involved in the pathogenesis of MPEC remain unknown. Our aim was to characterize 110 MPEC isolates obtained from the milk of cows with clinical mastitis, regarding the virulence factor-encoding genes present, adherence patterns on HeLa cells, and antimicrobial resistance profile. The MPEC isolates were classified mainly in phylogroups A (50.9%) and B1 (38.2%). None of the isolates harbored genes used for diarrheagenic E. coli classification, but 26 (23.6%) and 4 (3.6%) isolates produced the aggregative or diffuse adherence pattern, respectively. Among the 22 genes investigated, encoding virulence factors associated with extraintestinal pathogenic E. coli pathogenesis, fimH (93.6%) was the most frequent, followed by traT (77.3%) and ompT (68.2%). Pulsed-field gel electrophoresis analysis revealed six pulse-types with isolates obtained over time, thus indicating persistent intramammary infections. The genes encoding beta-lactamases detected were as follows: blaTEM (35/31.8%); blaCTX-M-2/blaCTX-M-8 (2/1.8%); blaCTX-M-15 and blaCMY-2 (1/0.9%); five isolates were classified as extended spectrum beta-lactamase (ESBL) producers. As far as we know, papA, shf, ireA, sat and blaCTX-M-8 were detected for the first time in MPEC. In summary, the genetic profile of the MPEC studied was highly heterogeneous, making it impossible to establish a common genetic profile useful for molecular MPEC classification. Moreover, the detection of ESBL-producing isolates is a serious public health concern.
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Hulst AD, Bijma P, De Jong MCM. Can breeders prevent pathogen adaptation when selecting for increased resistance to infectious diseases? GENETICS SELECTION EVOLUTION 2022; 54:73. [DOI: 10.1186/s12711-022-00764-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 10/24/2022] [Indexed: 11/09/2022]
Abstract
Abstract
Background
Recent research shows that genetic selection has high potential to reduce the prevalence of infectious diseases in livestock. However, like all interventions that target infectious diseases, genetic selection of livestock can exert selection pressure on pathogen populations. Such selection on the pathogen may lead to escape strategies and reduce the effect of selection of livestock for disease resistance. Thus, to successfully breed livestock for lower disease prevalence, it is essential to develop strategies that prevent the invasion of pathogen mutants that escape host resistance. Here we investigate the conditions under which such “escape mutants” can replace wild-type pathogens in a closed livestock population using a mathematical model of disease transmission.
Results
Assuming a single gene that confers sufficient resistance, results show that genetic selection for resistance in livestock typically leads to an “invasion window” within which an escape mutant of the pathogen can invade. The bounds of the invasion window are determined by the frequency of resistant hosts in the population. The lower bound occurs when the escape mutant has an advantage over the wild-type pathogen in the population. The upper bound occurs when local eradication of the pathogen is expected. The invasion window is smallest when host resistance is strong and when infection with the wild-type pathogen provides cross immunity to infection with the escape mutant.
Conclusions
To minimise opportunities for pathogens to adapt, under the assumptions of our model, the aim of disease control through genetic selection should be to achieve herd-level eradication of the infection faster than the rate of emergence of escape mutants of the pathogen. Especially for microparasitic infections, this could be achieved by placing animals into herds according to their genetic resistance, such that these herds stay completely out of the invasion window. In contrast to classical breeding theory, our model suggests that multi-trait selection with gradual improvement of each trait of the breeding goal might not be the best strategy when resistance to infectious disease is part of the breeding goal. Temporally, combining genetic selection with other interventions helps to make the invasion window smaller, and thereby reduces the risk of invasion of escape mutants.
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Wang M, Bissonnette N, Laterrière M, Dudemaine PL, Gagné D, Roy JP, Zhao X, Sirard MA, Ibeagha-Awemu EM. Methylome and transcriptome data integration reveals potential roles of DNA methylation and candidate biomarkers of cow Streptococcus uberis subclinical mastitis. J Anim Sci Biotechnol 2022; 13:136. [PMCID: PMC9639328 DOI: 10.1186/s40104-022-00779-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 09/13/2022] [Indexed: 11/09/2022] Open
Abstract
Abstract
Background
Mastitis caused by different pathogens including Streptococcus uberis (S. uberis) is responsible for huge economic losses to the dairy industry. In order to investigate the potential genetic and epigenetic regulatory mechanisms of subclinical mastitis due to S. uberis, the DNA methylome (whole genome DNA methylation sequencing) and transcriptome (RNA sequencing) of milk somatic cells from cows with naturally occurring S. uberis subclinical mastitis and healthy control cows (n = 3/group) were studied.
Results
Globally, the DNA methylation levels of CpG sites were low in the promoters and first exons but high in inner exons and introns. The DNA methylation levels at the promoter, first exon and first intron regions were negatively correlated with the expression level of genes at a whole-genome-wide scale. In general, DNA methylation level was lower in S. uberis-positive group (SUG) than in the control group (CTG). A total of 174,342 differentially methylated cytosines (DMCs) (FDR < 0.05) were identified between SUG and CTG, including 132,237, 7412 and 34,693 DMCs in the context of CpG, CHG and CHH (H = A or T or C), respectively. Besides, 101,612 methylation haplotype blocks (MHBs) were identified, including 451 MHBs that were significantly different (dMHB) between the two groups. A total of 2130 differentially expressed (DE) genes (1378 with up-regulated and 752 with down-regulated expression) were found in SUG. Integration of methylome and transcriptome data with MethGET program revealed 1623 genes with significant changes in their methylation levels and/or gene expression changes (MetGDE genes, MethGET P-value < 0.001). Functional enrichment of genes harboring ≥ 15 DMCs, DE genes and MetGDE genes suggest significant involvement of DNA methylation changes in the regulation of the host immune response to S. uberis infection, especially cytokine activities. Furthermore, discriminant correlation analysis with DIABLO method identified 26 candidate biomarkers, including 6 DE genes, 15 CpG-DMCs and 5 dMHBs that discriminated between SUG and CTG.
Conclusion
The integration of methylome and transcriptome of milk somatic cells suggests the possible involvement of DNA methylation changes in the regulation of the host immune response to subclinical mastitis due to S. uberis. The presented genetic and epigenetic biomarkers could contribute to the design of management strategies of subclinical mastitis and breeding for mastitis resistance.
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Neculai-Valeanu AS, Ariton AM. Udder Health Monitoring for Prevention of Bovine Mastitis and Improvement of Milk Quality. Bioengineering (Basel) 2022; 9:608. [PMID: 36354519 PMCID: PMC9687184 DOI: 10.3390/bioengineering9110608] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 08/05/2023] Open
Abstract
To maximize milk production, efficiency, and profits, modern dairy cows are genetically selected and bred to produce more and more milk and are fed copious quantities of high-energy feed to support ever-increasing milk volumes. As demands for increased milk yield and milking efficiency continue to rise to provide for the growing world population, more significant stress is placed on the dairy cow's productive capacity. In this climate, which is becoming increasingly hotter, millions of people depend on the capacity of cattle to respond to new environments and to cope with temperature shocks as well as additional stress factors such as solar radiation, animal crowding, insect pests, and poor ventilation, which are often associated with an increased risk of mastitis, resulting in lower milk quality and reduced production. This article reviews the impact of heat stress on milk production and quality and emphasizes the importance of udder health monitoring, with a focus on the use of emergent methods for monitoring udder health, such as infrared thermography, biosensors, and lab-on-chip devices, which may promote animal health and welfare, as well as the quality and safety of dairy products, without hindering the technological flow, while providing significant benefits to farmers, manufacturers, and consumers.
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Arbab S, Ullah H, Bano I, Li K, Ul Hassan I, Wang W, Qadeer A, Zhang J. Evaluation of in vitro antibacterial effect of essential oil and some herbal plant extract used against mastitis pathogens. Vet Med Sci 2022; 8:2655-2661. [DOI: 10.1002/vms3.959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Safia Arbab
- Key Laboratory of Veterinary Pharmaceutical Development Ministry of Agriculture Lanzhou China
- Key Laboratory of New Animal Drug Project of Gansu Province Lanzhou China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences Chinese Academy of Agricultural Sciences Beijing China
| | - Hanif Ullah
- West China School of Nursing/ West China Hospital Sichuan University Chengdu China
| | - Iqra Bano
- Faculty of Bioscience Department of Physiology and Biochemistry, Shaheed Benazir Bhutto University of Veterinary & Animal Sciences Sakrand Pakistan
| | - Ka Li
- West China School of Nursing/ West China Hospital Sichuan University Chengdu China
| | - Inam Ul Hassan
- Department of Microbiology Hazara University Manshera Khyber Pakhtunkhwa Pakistan
| | - Weiwei Wang
- Key Laboratory of Veterinary Pharmaceutical Development Ministry of Agriculture Lanzhou China
- Key Laboratory of New Animal Drug Project of Gansu Province Lanzhou China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences Chinese Academy of Agricultural Sciences Beijing China
| | - Abdul Qadeer
- Key Laboratory of Animal Parasitology of Ministry of Agriculture and Rural Affairs Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences Shanghai China
| | - Jiyu Zhang
- Key Laboratory of Veterinary Pharmaceutical Development Ministry of Agriculture Lanzhou China
- Key Laboratory of New Animal Drug Project of Gansu Province Lanzhou China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences Chinese Academy of Agricultural Sciences Beijing China
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Mastitis: What It Is, Current Diagnostics, and the Potential of Metabolomics to Identify New Predictive Biomarkers. DAIRY 2022. [DOI: 10.3390/dairy3040050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Periparturient diseases continue to be the greatest challenge to both farmers and dairy cows. They are associated with a decrease in productivity, lower profitability, and a negative impact on cows’ health as well as public health. This review article discusses the pathophysiology and diagnostic opportunities of mastitis, the most common disease of dairy cows. To better understand the disease, we dive deep into the causative agents, traditional paradigms, and the use of new technologies for diagnosis, treatment, and prevention of mastitis. This paper takes a systems biology approach by highlighting the relationship of mastitis with other diseases and introduces the use of omics sciences, specifically metabolomics and its analytical techniques. Concluding, this review is backed up by multiple studies that show how earlier identification of mastitis through predictive biomarkers can benefit the dairy industry and improve the overall animal health.
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Liang B, Zhao W, Han B, Barkema HW, Niu YD, Liu Y, Kastelic JP, Gao J. Biological and genomic characteristics of two bacteriophages isolated from sewage, using one multidrug-resistant and one non-multidrug-resistant strain of Klebsiella pneumoniae. Front Microbiol 2022; 13:943279. [PMID: 36312979 PMCID: PMC9608510 DOI: 10.3389/fmicb.2022.943279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 09/30/2022] [Indexed: 11/19/2022] Open
Abstract
Bovine mastitis caused by multi-drug resistant (MDR) Klebsiella pneumoniae is difficult to treat with antibiotics, whereas bacteriophages may be a viable alternative. Our objective was to use 2 K. pneumoniae strains, 1 MDR and the other non-MDR, to isolate phages from sewage samples and compare their biological and genomic characteristics. Additionally, phage infected mouse mammary gland was also analyzed by H&E staining and ELISA kits to compare morphology and inflammatory factors, respectively. Based on assessments with double agar plates and transmission electron microscopy, phage CM_Kpn_HB132952 had clear plaques surrounded by translucent halos on the bacterial lawn of K. pneumoniae KPHB132952 and belonged to Siphoviridae, whereas phage CM_Kpn_HB143742 formed a clear plaque on the bacterial lawn of K. pneumoniae KPHB143742 and belonged to Podoviridae. In 1-step growth curves, CM_Kpn_HB132952 and CM_Kpn_HB143742 had burst sizes of 0.34 and 0.73 log10 PFU/mL, respectively. The former had a latent period of 50 min and an optimal multiplicity of infection (MOI) of 0.01, whereas for the latter, the latent period was 30 min (MOI = 1). Phage CM_Kpn_HB132952 had better thermal and acid–base stability than phage CM_Kpn_HB143742. Additionally, both phages had the same host range rate but different host ranges. Based on Illumina NovaSeq, phages CM_Kpn_HB132952 and CM_Kpn_HB143742 had 140 and 145 predicted genes, respectively. Genomic sequencing and phylogenetic tree analysis indicated that both phages were novel phages belonging to the Klebsiella family. Additionally, the histopathological structure and inflammatory factors TNF-α and IL-1β were not significantly different among phage groups and the control group. In conclusion, using 1 MDR and 1 non-MDR strain of K. pneumoniae, we successfully isolated two phages from the same sewage sample, and demonstrated that they had distinct biological and genomic characteristics.
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Affiliation(s)
- Bingchun Liang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Wenpeng Zhao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Bo Han
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Herman W. Barkema
- Department of Production Animal Health, Faculty of Veterinary Medicine, Hospital Drive NW, University of Calgary, Calgary, AB, Canada
| | - Yan D. Niu
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, Hospital Drive NW, University of Calgary, Calgary, AB, Canada
| | - Yongxia Liu
- College of Veterinary Medicine, Shandong Agricultural University, Taian, Shandong, China
| | - John P. Kastelic
- Department of Production Animal Health, Faculty of Veterinary Medicine, Hospital Drive NW, University of Calgary, Calgary, AB, Canada
| | - Jian Gao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
- *Correspondence: Jian Gao,
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Antimicrobial Resistance, Virulence Profiles, and Public Health Significance of Enterococcus faecalis Isolated from Clinical Mastitis of Cattle in Bangladesh. BIOMED RESEARCH INTERNATIONAL 2022; 2022:8101866. [PMID: 36203487 PMCID: PMC9532099 DOI: 10.1155/2022/8101866] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 07/05/2022] [Accepted: 08/16/2022] [Indexed: 01/16/2023]
Abstract
This study was designed to identify Enterococcus faecalis from clinical mastitis of cattle and determine their antimicrobial resistance and virulence determinants to evaluate their potential public health significance. A total of 105 composite milk samples (80 from cattle with clinical mastitis and 25 from apparently healthy cattle) were analyzed. E. faecalis were isolated by culturing on enterococcal selective media and identified by PCR and sequencing. Antimicrobial resistance phenotype was elucidated by the disc diffusion method, and MIC was determined by broth microdilution method according to CLSI guidelines. Detection of antimicrobial resistance and virulence genes was done by PCR. E. faecalis were isolated from 11.25% (9/80) of the clinical mastitis and 4% (1/25) of the apparently healthy cattle milk samples. The disc diffusion test revealed 40% isolates as resistant to tetracycline and azithromycin, respectively. Among them, 20% (2/10) of isolates showed resistance to both tetracycline and azithromycin. Tetracycline-resistant isolates showed MIC ranging from ≥64 to >128 μg/ml and carried tetracycline-resistant genes tetK, tetL, and tetM in 25%, 25%, and 50% of the resistant isolates, respectively. On the other hand, all the isolates were sensitive to amoxicillin, ampicillin, bacitracin, chloramphenicol, gentamicin, penicillin, and vancomycin. In addition, the isolates carried at least one of the nine virulence genes screened with pil having the highest frequency, followed by fsrB, fsrC, ace, sprE, gelE, and agg genes. Positive correlations were evident between ace, fsrC, gelE, and sprE genes that are associated with the attachment and biofilm formation in E. faecalis. E. faecalis isolated in this study carried antibiotic resistance and virulence determinants which explain their competence to be potential human pathogens.
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Fredebeul-Krein F, Schmenger A, Wente N, Zhang Y, Krömker V. Factors Associated with the Severity of Clinical Mastitis. Pathogens 2022; 11:pathogens11101089. [PMID: 36297146 PMCID: PMC9607496 DOI: 10.3390/pathogens11101089] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/16/2022] [Accepted: 09/20/2022] [Indexed: 11/29/2022] Open
Abstract
Severe mastitis can lead to considerable disturbances in the cows’ general condition and even to septicemia and death. The aim of this cross-sectional study was to identify factors associated with the severity of the clinical expression of mastitis. Streptococcus (Str.) uberis (29.9%) was the most frequently isolated pathogen, followed by coliform bacteria (22.3%). The majority of all mastitis cases (n = 854) in this study were either mild or moderate, but 21.1% were severe. It can be deduced that the combination of coliform pathogens and increasing pathogen shedding of these showed associations with severe mastitis. Furthermore, animal-related factors associated with severe disease progression were stages of lactation, and previous diseases in the period prior to the mastitis episode. Cows in early lactation had more severe mastitis. Ketosis and uterine diseases in temporal relation to the mastitis were associated with more severe mastitis in the diseased cows. Hypocalcemia was significantly associated with milder mastitis. As another factor, treatment with corticosteroids within two weeks before mastitis was associated with higher severity of mastitis. Knowledge of these risk factors may provide the basis for randomized controlled trials of the exact influence of these on the severity of mastitis.
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Affiliation(s)
- Frederik Fredebeul-Krein
- Department of Microbiology, Faculty of Mechanical and Bioprocess Engineering, University of Applied Sciences and Arts, 30453 Hannover, Germany
| | - Anne Schmenger
- Department of Microbiology, Faculty of Mechanical and Bioprocess Engineering, University of Applied Sciences and Arts, 30453 Hannover, Germany
| | - Nicole Wente
- Department of Microbiology, Faculty of Mechanical and Bioprocess Engineering, University of Applied Sciences and Arts, 30453 Hannover, Germany
| | - Yanchao Zhang
- Department of Microbiology, Faculty of Mechanical and Bioprocess Engineering, University of Applied Sciences and Arts, 30453 Hannover, Germany
| | - Volker Krömker
- Department of Microbiology, Faculty of Mechanical and Bioprocess Engineering, University of Applied Sciences and Arts, 30453 Hannover, Germany
- Department of Veterinary and Animal Sciences, University of Copenhagen, 1870 Frederiksberg, Denmark
- Correspondence:
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Quiroga J, Vidal S, Siel D, Caruffo M, Valdés A, Cabrera G, Lapierre L, Sáenz L. Novel Proteoliposome-Based Vaccine against E. coli: A Potential New Tool for the Control of Bovine Mastitis. Animals (Basel) 2022; 12:ani12192533. [PMID: 36230275 PMCID: PMC9558995 DOI: 10.3390/ani12192533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/13/2022] [Accepted: 09/18/2022] [Indexed: 11/25/2022] Open
Abstract
Simple Summary Mastitis is a highly prevalent disease in dairy cattle, affecting animal welfare and generating economic losses for the dairy industry. Control measures for coliform mastitis are limited, due to the constant exposure of the teat to bacteria and the emergence of antimicrobial-resistant bacteria, making vaccination an important strategy for control of mastitis. However, currently available vaccines show limited efficacy, which could be attributed to inactivation processes that alter the antigenic preservation of the vaccines. The aim of this study was to assess the efficacy of a novel vaccine against mastitis using proteoliposomes obtained from E. coli in a murine model of coliform mastitis. We demonstrated that the proteoliposome vaccine was safe, immunogenic and effective against an experimental model of E. coli mastitis, decreasing bacterial count and tissue damage. This proteoliposome vaccine is a potential new tool for prevention of mastitis. Abstract Escherichia coli is an important causative agent of clinical mastitis in cattle. Current available vaccines have shown limited protection. We evaluated the efficacy of a novel vaccine based on bacterial proteoliposomes derived from an E. coli field strain. Female BALB/c mice were immunized subcutaneously with two doses of the vaccine, 3 weeks apart. Between days 5 and 8 after the first inoculation, the females were mated. At 5–8 days postpartum, the mice were intramammary challenged with the same E. coli strain. Two days after bacterial infection, mice were euthanized, and the mammary glands were examined and removed to evaluate the efficacy and safety of the vaccine as well as the immune response generated by the new formulation. The vaccinated mice showed mild clinical symptoms and a lower mammary bacterial load as compared to non-vaccinated animals. The vaccination induced an increase in levels of IgG, IgG1 and IgG2a against E. coli in blood and mammary glands that showed less inflammatory infiltration and tissue damage, as compared to the control group. In summary, the vaccine based on bacterial proteoliposomes is safe, immunogenic, and effective against E. coli, constituting a new potential tool for mastitis control.
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Affiliation(s)
- John Quiroga
- Faculty of Veterinary Sciences, Universidad de Chile, Santiago 8820808, Chile
- Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Sonia Vidal
- Faculty of Veterinary Sciences, Universidad de Chile, Santiago 8820808, Chile
| | - Daniela Siel
- Faculty of Veterinary Sciences, Universidad de Chile, Santiago 8820808, Chile
- Escuela de Medicina Veterinaria, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago 8370035, Chile
| | - Mario Caruffo
- Faculty of Veterinary Sciences, Universidad de Chile, Santiago 8820808, Chile
- Escuela de Biotecnología, Facultad de Ciencias, Universidad Santo Tomás, Santiago 8370003, Chile
| | - Andrea Valdés
- Faculty of Veterinary Sciences, Universidad de Chile, Santiago 8820808, Chile
| | - Gonzalo Cabrera
- Programa de Biología Celular y Molecular, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
| | - Lissette Lapierre
- Faculty of Veterinary Sciences, Universidad de Chile, Santiago 8820808, Chile
- Correspondence: (L.L.); (L.S.); Tel.: +56-9229-785689 (L.S.)
| | - Leonardo Sáenz
- Faculty of Veterinary Sciences, Universidad de Chile, Santiago 8820808, Chile
- Correspondence: (L.L.); (L.S.); Tel.: +56-9229-785689 (L.S.)
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Compost Barns: A Bibliometric Analysis. Animals (Basel) 2022; 12:ani12192492. [PMID: 36230238 PMCID: PMC9559651 DOI: 10.3390/ani12192492] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 11/17/2022] Open
Abstract
The objective of this study was to evaluate the main scientific studies addressing the topic of compost barns in recent years, highlighting the main journals, authors, countries, organizations, and keywords associated with the publications and trends in this type of research through a bibliometric analysis. For this analysis, publications (articles and literature reviews) addressing compost barns were obtained from the Scopus and Web of Science databases. A total of 108 studies published between 2007 and April 2022 were included. A greater number of publications was observed starting in 2017, with 2021 having the largest number of publications. The Journal of Dairy Science was the most highly cited journal. Marcia I. Endres was the author with the greatest academic impact. The most influential country was the United States, followed by Brazil. Among the organizations that have published studies on compost barns, the Federal University of Lavras, and the University of Florence had the largest numbers of publications. In conclusion, this bibliometric analysis allowed us to evaluate the scientific evolution, research, and publishing tendencies of studies on the compost barn animal housing system, and the results make it possible to deduce current trends in scientific research and publications.
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