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Mangan M, Siwek M. Strategies to combat heat stress in poultry production-A review. J Anim Physiol Anim Nutr (Berl) 2024; 108:576-595. [PMID: 38152002 DOI: 10.1111/jpn.13916] [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: 06/16/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 12/29/2023]
Abstract
The effects of heat stress (HS) caused by high temperatures continue to be a global concern in poultry production. Poultry birds are homoeothermic, however, modern-day chickens are highly susceptible to HS due to their inefficiency in dissipating heat from their body due to the lack of sweat glands. During HS, the heat load is higher than the chickens' ability to regulate it. This can disturb normal physiological functioning, affect metabolism and cause behavioural changes, respiratory alkalosis and immune dysregulation in birds. These adverse effects cause gut dysbiosis and, therefore, reduce nutrient absorption and energy metabolism. This consequently reduces production performances and causes economic losses. Several strategies have been explored to combat the effects of HS. These include environmentally controlled houses, provision of clean cold water, low stocking density, supplementation of appropriate feed additives, dual and restricted feeding regimes, early heat conditioning and genetic selection of poultry lines to produce heat-resistant birds. Despite all these efforts, HS still remains a challenge in the poultry sector. Therefore, there is a need to explore effective strategies to address this long-lasting problem. The most recent strategy to ameliorate HS in poultry is early perinatal programming using the in ovo technology. Such an approach seems particularly justified in broilers because chick embryo development (21 days) equals half of the chickens' posthatch lifespan (42 days). As such, this strategy is expected to be more efficient and cost-effective to mitigate the effects of HS on poultry and improve the performance and health of birds. Therefore, this review discusses the impact of HS on poultry, the advantages and limitations of the different strategies. Finally recommend a promising strategy that could be efficient in ameliorating the adverse effects of HS in poultry.
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Affiliation(s)
- Modou Mangan
- Department of Animal Biotechnology and Genetics, Bydgoszcz University of Science and Technology, Bydgoszcz, Poland
| | - Maria Siwek
- Department of Animal Biotechnology and Genetics, Bydgoszcz University of Science and Technology, Bydgoszcz, Poland
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Gupta V, Ncho CM, Goel A, Jeong CM, Choi YH. In ovo feeding of α-ketoglutaric acid improves hepatic antioxidant-gene expression, plasma antioxidant activities and decreases body temperature without affecting broiler body weight under cyclic heat stress. Poult Sci 2024; 103:103749. [PMID: 38670054 PMCID: PMC11066556 DOI: 10.1016/j.psj.2024.103749] [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: 12/21/2023] [Revised: 04/01/2024] [Accepted: 04/05/2024] [Indexed: 04/28/2024] Open
Abstract
The broiler industry is adversely affected by the rise in global temperature. This study investigated the effects of in ovo feeding of α-ketoglutaric acid (AKG) on growth performance, organ weight, plasma metabolite, plasma oxidative stress, rectal temperature (RT), and hepatic mRNA expression of antioxidant-related genes in Arbor Acres broilers subjected to cyclic heat stress (HS). Three hundred fifty fertile eggs during incubation were divided into 5 groups according to AKG concentrations and temperature conditions. After dissolving AKG in distilled water at 0, 0.5, 1.0, and 1.5, 0% AKG was in ovo administered to 2 of the 5 groups whereas the remaining 3 groups received 0.5, 1.0, and 1.5%, respectively. From d 29 to 34 of age, 4 groups of birds received heat stress (HS) at 31°C ± 1°C for 6 h per day while the other group was kept at room temperature (21°C ± 1°C; NT). So, the 5 treatment groups were: 1) 0AKG-NT, where chicks hatched from eggs receiving 0% AKG were reared under thermoneutral conditions. 2) 0AKG-HS, where chicks hatched from eggs receiving 0% AKG were reared under cyclic HS conditions. 3) 0.5AKG-HS, where chicks hatched from eggs receiving 0.5% AKG were reared under cyclic HS conditions. 4) 1.0AKG-HS, where chicks hatched from eggs receiving 1.0% AKG were reared under cyclic HS conditions. 5) 1.5AKG-HS, where chicks hatched from eggs receiving 1.5% AKG were reared under cyclic HS conditions. HS significantly reduced body weight change (ΔBW %) and average daily gain (ADG) without affecting average daily feed intake (ADFI). Feed conversion ratio (FCR) was significantly increased (P = 0.003) in all HS-treated groups. A significant linear decrease in the final RT (P = 0.005) and a change in RT (P = 0.003) were detected with increasing AKG concentration. Total antioxidant capacity (P = 0.029) and antioxidant balance (P = 0.001) in plasma increased linearly with increasing AKG concentration whereas malondialdehyde concentrations were linearly decreased (P = 0.001). Hepatic gene expression of CAT (P = 0.026) and GPX1 (P = 0.001) were dose-dependently upregulated while nicotinamide adenine dinucleotide phosphate oxidase (NOX)1, NOX4, and heat shock protein (HSP)70 were linearly downregulated (P < 0.05). Hence, in ovo injection of AKG was effective in mitigating HS-induced oxidative stress without attenuating the adverse effects on broiler growth.
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Affiliation(s)
- Vaishali Gupta
- Department of Animal Science, Gyeongsang National University, Jinju 52828, Republic of Korea; Division of Applied Life Sciences (BK21 Four Program), Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Chris Major Ncho
- Department of Animal Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Akshat Goel
- Department of Animal Science, Gyeongsang National University, Jinju 52828, Republic of Korea; Institute of Agriculture and Life Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Chae-Mi Jeong
- Department of Animal Science, Gyeongsang National University, Jinju 52828, Republic of Korea; Division of Applied Life Sciences (BK21 Four Program), Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Yang-Ho Choi
- Department of Animal Science, Gyeongsang National University, Jinju 52828, Republic of Korea; Division of Applied Life Sciences (BK21 Four Program), Gyeongsang National University, Jinju 52828, Republic of Korea; Institute of Agriculture and Life Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea.
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Salehifar E, Sobhanirad S. The Effect of Borage ( Borago officinalis) Extract on Growth Performance and Immune System of Broilers at High-Density Conditions. J APPL ANIM WELF SCI 2024; 27:201-209. [PMID: 34979832 DOI: 10.1080/10888705.2021.2021653] [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: 10/19/2022]
Abstract
The present study was conducted to investigate the effects of borage extract (BE) on growth performance and the immune system of broilers at high-stocking-density. A total of 330 male Ross 308 broilers were distributed in a completely randomized design with six experimental treatments each with three replications. Treatments were T1: 10 broilers/m2 (positive control group), T2: 20 broilers/m2 (negative control group), T3: 20 broilers/m2 + 150 mg/l of borage extract (BE), T4: 20 broilers/m2 + 300 mg/l of BE, T5: 20 broilers/m2 + 450 mg/l of BE, and T6: 20 broilers/m2 + 600 mg/l of BE. Weight gain, feed intake, and feed conversion ratio (FCR) were measured weekly and immune responce were examined twice. The use of BE could improve weight gain, feed intake, and FCR in broilers reared at a high-stocking-density. BE treatment improved the immune response of broilers. According to the results, the use of BE at 600 mg/l is useful in reducing the effects of density stress. Therefore, BE can be used as a nutritional strategy to improve the bird performance in stressful conditions.
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Affiliation(s)
- Ehsan Salehifar
- Department of Agricultural Science, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Saeid Sobhanirad
- Department of Agricultural Science, Mashhad Branch, Islamic Azad University, Mashhad, Iran
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Ghasemi-Aghgonbad A, Olyayee M, Janmohammadi H, Abdollahi MR, Kianfar R. The Interactive Impacts of Corn Particle Size and Conditioning Temperature on Performance, Carcass Traits, and Intestinal Morphology of Broiler Chickens. Animals (Basel) 2024; 14:818. [PMID: 38473202 DOI: 10.3390/ani14050818] [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: 12/24/2023] [Revised: 01/29/2024] [Accepted: 02/01/2024] [Indexed: 03/14/2024] Open
Abstract
This study aimed to investigate the interactions between corn particle size (PS) and conditioning temperature (CT) on the performance, carcass traits, intestinal morphology, and immune responses in broilers fed a corn-soybean meal-based diet. A total of 360 one-day-old male broiler chicks (Ross 308) were randomly allocated into six dietary treatments in a 2 × 3 factorial arrangement, consisting of two corn PS (finely ground with geometric mean diameter (GMD) of 357 µm (PSF) vs. coarsely ground corn with GMD of 737 µm (PSC), and three CT [unconditioned (CTU), conditioned at 75 °C (CT75) and 90 °C (CT90)]. Birds were accommodated in 30 pens with five replicates and 12 chicks per each pen. There was no interaction between corn PS and CT on the growth performance and immune response of broilers at any growth phases. However, during the starter (0-10 days) period, the average daily weight gain (ADWG) and feed conversion ratio (FCR) of PSF-fed birds were significantly improved compared to those fed PSC (p < 0.05). During the starter (0-10 days) and grower (11-24 days) periods, increasing the conditioning temperature of corn increased the ADWG, while in the starter phase only the CT75 caused a lower FCR (p < 0.05). Broilers fed PSF corn showed the lowest FCR during the finisher (25-42 days) period compared to those fed PSC (p < 0.05). Conditioning corn at 75 °C reduced FCR during the finisher (25-42 days) period compared to the birds fed CTU and CT90 corn (p < 0.05). In whole experimental periods (1-42 days), PSF and CT75 treatment increased the ADWG compared to the PSC and CTU (p < 0.05). The CT75 treatment improved primary total anti-sheep red blood cell (SRBCs) titer (IgT) and IgM and secondary IgT and IgG responses compared to the other experimental groups (CTU and CT90) (p < 0.05). No significant PS × CT interaction was found on the Newcastle disease (ND) antibody titer of broiler chickens (p > 0.05). Feeding CT75 corn reduced duodenum and jejunum relative lengths compared to the birds fed diets containing CTU corn. Significant PS × CT interactions (p < 0.05) were observed for villus height, villus height to crypt depth, crypt depth, muscle thickness, and absorption surface area of the jejunum. The highest carcass yield was observed in the PSF-CT75 group (p < 0.05). In conclusion, the use of finely ground corn (PSF) conditioned at 75 °C (CT75) was beneficial to growth performance, development of the digestive tract, jejunum histomorphometry and the immune responses of broilers.
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Affiliation(s)
| | - Majid Olyayee
- Department of Animal Science, University of Tabriz, Tabriz 5166616471, Iran
| | | | - Mohammad Reza Abdollahi
- Monogastric Research Centre, School of Agriculture and Environment, Massey University, Palmerston North 4410, New Zealand
| | - Ruhollah Kianfar
- Department of Animal Science, University of Tabriz, Tabriz 5166616471, Iran
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Wang Y, Saelao P, Chanthavixay G, Gallardo RA, Wolc A, Fulton JE, Dekkers JM, Lamont SJ, Kelly TR, Zhou H. Genomic Regions and Candidate Genes Affecting Response to Heat Stress with Newcastle Virus Infection in Commercial Layer Chicks Using Chicken 600K Single Nucleotide Polymorphism Array. Int J Mol Sci 2024; 25:2640. [PMID: 38473888 DOI: 10.3390/ijms25052640] [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: 02/03/2024] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024] Open
Abstract
Heat stress results in significant economic losses to the poultry industry. Genetics plays an important role in chickens adapting to the warm environment. Physiological parameters such as hematochemical parameters change in response to heat stress in chickens. To explore the genetics of heat stress resilience in chickens, a genome-wide association study (GWAS) was conducted using Hy-Line Brown layer chicks subjected to either high ambient temperature or combined high temperature and Newcastle disease virus infection. Hematochemical parameters were measured during three treatment phases: acute heat stress, chronic heat stress, and chronic heat stress combined with NDV infection. Significant changes in blood parameters were recorded for 11 parameters (sodium (Na+, potassium (K+), ionized calcium (iCa2+), glucose (Glu), pH, carbon dioxide partial pressure (PCO2), oxygen partial pressure (PO2), total carbon dioxide (TCO2), bicarbonate (HCO3), base excess (BE), and oxygen saturation (sO2)) across the three treatments. The GWAS revealed 39 significant SNPs (p < 0.05) for seven parameters, located on Gallus gallus chromosomes (GGA) 1, 3, 4, 6, 11, and 12. The significant genomic regions were further investigated to examine if the genes within the regions were associated with the corresponding traits under heat stress. A candidate gene list including genes in the identified genomic regions that were also differentially expressed in chicken tissues under heat stress was generated. Understanding the correlation between genetic variants and resilience to heat stress is an important step towards improving heat tolerance in poultry.
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Affiliation(s)
- Ying Wang
- Genomics to Improve Poultry Innovation Lab, University of California, Davis, CA 95616, USA
- Department of Animal Science, University of California, Davis, CA 95616, USA
| | - Perot Saelao
- Genomics to Improve Poultry Innovation Lab, University of California, Davis, CA 95616, USA
- Department of Animal Science, University of California, Davis, CA 95616, USA
- Veterinary Pest Genetics Research Unit, United States Department of Agriculture U, Kerrville, TX 78006, USA
| | - Ganrea Chanthavixay
- Genomics to Improve Poultry Innovation Lab, University of California, Davis, CA 95616, USA
- Department of Animal Science, University of California, Davis, CA 95616, USA
| | - Rodrigo A Gallardo
- Genomics to Improve Poultry Innovation Lab, University of California, Davis, CA 95616, USA
- School of Veterinary Medicine, University of California, Davis, CA 95616, USA
| | - Anna Wolc
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA
- Hy-Line International, Dallas Center, IA 50063, USA
| | | | - Jack M Dekkers
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA
| | - Susan J Lamont
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA
| | - Terra R Kelly
- Genomics to Improve Poultry Innovation Lab, University of California, Davis, CA 95616, USA
- School of Veterinary Medicine, University of California, Davis, CA 95616, USA
| | - Huaijun Zhou
- Genomics to Improve Poultry Innovation Lab, University of California, Davis, CA 95616, USA
- Department of Animal Science, University of California, Davis, CA 95616, USA
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Hatipoglu D, Senturk G, Aydin SS, Kirar N, Top S, Demircioglu İ. Rye-grass-derived probiotics alleviate heat stress effects on broiler growth, health, and gut microbiota. J Therm Biol 2024; 119:103771. [PMID: 38134538 DOI: 10.1016/j.jtherbio.2023.103771] [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: 10/17/2023] [Revised: 11/24/2023] [Accepted: 11/28/2023] [Indexed: 12/24/2023]
Abstract
The primary aim of this study was to assess the impact of liquid (S-LAB) and lyophilized (L-LAB) probiotics sourced from Rye-Grass Lactic Acid Bacteria on broilers experiencing heat stress. The study involved 240 broiler chicks divided into six groups. These groups included a negative control (Control) with broilers raised at a normal temperature (24 °C) on a basal diet, and positive control groups (S-LAB and L-LAB) with broilers under normal temperature receiving a lactic acid bacteria supplement (0.5 mL/L) from rye-grass in their drinking water. The heat stress group (HS) comprised broilers exposed to cyclic heat stress (5-7 h per day at 34-36 °C) on a basal diet, while the heat stress and probiotic groups (S-LAB/HS and L-LAB/HS) consisted of broilers under heat stress supplemented with the rye-grass-derived lactic acid bacteria. Results indicated that heat stress without supplementation (HS) led to reduced body weight gain, T3 levels, citrulline, and growth hormone levels, along with an increased feed conversion ratio, serum corticosterone, HSP70, ALT, AST, and leptin levels. Heat stress also negatively impacted cecal microbiota, decreasing lactic acid bacteria (LABC) while increasing E. coli and coliform bacteria (CBC) counts. Probiotic supplements (S-LAB/HS and L-LAB/HS) mitigated these effects by enhancing broilers' resilience to heat stress. In conclusion, rye grass-derived S-LAB and L-LAB probiotics can effectively support broiler chickens under heat stress, promoting growth, liver function, hormonal balance, gut health, and cecal microbiome ecology. These benefits are likely mediated through improved gut health.
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Affiliation(s)
- Durmus Hatipoglu
- Selcuk University, Faculty of Veterinary Medicine, Department of Physiology, 42130, Konya, Turkey.
| | - Goktug Senturk
- Aksaray University, Faculty of Veterinary Medicine, Department of Physiology, 68100, Aksaray, Turkey
| | - Sadik Serkan Aydin
- Harran University, Department of Animal Nutrition and Nutritional Disease, Faculty of Veterinary Medicine, 63200, Şanlıurfa, Turkey
| | - Nurcan Kirar
- Harran University, Department of Animal Nutrition and Nutritional Disease, Faculty of Veterinary Medicine, 63200, Şanlıurfa, Turkey
| | - Sermin Top
- Harran University, Department of Animal Nutrition and Nutritional Disease, Faculty of Veterinary Medicine, 63200, Şanlıurfa, Turkey
| | - İsmail Demircioglu
- Harran University, Faculty of Veterinary Medicine, Department of Anatomy, 63200, Sanliurfa, Turkey
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7
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Oni AI, Adeleye OO, Adebowale TO, Oke OE. The role of phytogenic feed additives in stress mitigation in broiler chickens. J Anim Physiol Anim Nutr (Berl) 2024; 108:81-98. [PMID: 37587717 DOI: 10.1111/jpn.13869] [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: 03/18/2023] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 08/18/2023]
Abstract
The increase in global temperature and consumers' welfare has increased the use of phytogenic feed additives (PFA) to mitigate the negative effects of heat stress on chickens in recent years. Various bioactive compounds capable of improving the thermotolerance of broiler chickens during exposure to thermal challenges have been identified in different plant species and parts. This review is an overview of the roles of bioactive compounds of different PFA, such as polyphenols and flavonoids, antioxidants, growth-promoting and immune-modulating agents, in heat stress management in broiler chickens. Common PFA in use, particularly in tropical environments, are also discussed. An understanding of the roles of the PFA in chickens' thermotolerance could further stimulate interest in their use, thereby improving the birds' productivity and addressing consumers' concerns. This review collates the existing data on the roles of herbs in mitigating heat stress on chickens and highlights future research perspectives.
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Affiliation(s)
- Aderanti Ifeoluwa Oni
- Department of Animal Physiology, Federal University of Agriculture, Abeokuta, Nigeria
| | - Oluwagbemiga O Adeleye
- Department of Animal Production and Health, Federal University of Agriculture, Abeokuta, Nigeria
| | | | - Oyegunle Emmanuel Oke
- Department of Animal Physiology, Federal University of Agriculture, Abeokuta, Nigeria
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Oluwagbenga EM, Fraley GS. Heat stress and poultry production: a comprehensive review. Poult Sci 2023; 102:103141. [PMID: 37852055 PMCID: PMC10591017 DOI: 10.1016/j.psj.2023.103141] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/18/2023] [Accepted: 09/18/2023] [Indexed: 10/20/2023] Open
Abstract
The impact of global warming on poultry production has gained significant attention over the years. However, our current knowledge and understanding of the mechanisms through which heat stress (HS) resulting from global warming affects the welfare, behavior, immune response, production performance, and even transgenerational effects in poultry are still incomplete. Further research is needed to delve deeper into these mechanisms to gain a comprehensive understanding. Numerous studies have investigated various biomarkers of stress in poultry, aiming to identify reliable markers that can accurately assess the physiological status and well-being of birds. However, there is a significant amount of variation and inconsistency in the results reported across different studies. This inconsistency highlights the need for more standardized methods and assays and a clearer understanding of the factors that influence these biomarkers in poultry. This review article specifically focuses on 3 main aspects: 1) the neuroendocrine and behavioral responses of poultry to HS, 2) the biomarkers of HS and 3) the impact of HS on poultry production that have been studied in poultry. By examining the neuroendocrine and behavioral changes exhibited by poultry under HS, we aim to gain insights into the physiological impact of elevated temperatures in poultry.
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Affiliation(s)
| | - G S Fraley
- Animal Sciences, Purdue University, West Lafayette, IN USA.
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das D Ribeiro JC, Drumond MM, Mancha-Agresti P, Guimarães JPF, da C Ferreira D, Martins MIA, de M Murata PM, de Carvalho AC, Pereira RT, Ribeiro Júnior V, de C Azevedo VA, de P Naves L. Diets Supplemented with Probiotics Improve the Performance of Broilers Exposed to Heat Stress from 15 Days of Age. Probiotics Antimicrob Proteins 2023; 15:1327-1341. [PMID: 36066817 DOI: 10.1007/s12602-022-09989-3] [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] [Accepted: 08/29/2022] [Indexed: 01/10/2023]
Abstract
The poultry sector demands alternative additives to antibiotics that can be used as performance enhancers. Therefore, this experiment was conducted to evaluate the probiotics effects on performance, intestinal health, and redox status of 720 broilers exposed to heat stress from 15 days of age. Eight dietary treatments were evaluated: basal diet (BD) without antibiotic and probiotic (T1); BD supplemented with antibiotic zinc bacitracin (T2), BD supplemented with commercial probiotic of Bacillus subtilis DSM 17,299 (T3), BD supplemented with non-commercial probiotic of Lactococcus lactis NCDO 2118, Lactobacillus delbrueckii CNRZ 327, Escherichia coli CEC15, or Saccharomyces boulardii (T4 to T7), and BD simultaneously supplemented with the four non-commercial probiotics (T8). Feed intake, weight gain, and feed conversion were determined in the period from 1 to 42 days of age. Carcass and cuts yield, abdominal fat deposition, cloacal temperature, weight and length of intestine, activity of myeloperoxidase and eosinophilic peroxidase enzymes in the jejunum, jejunal histomorphometry, relative gene expression in the jejunum (occludin, zonulin, interleukin-8, cholecystokinin, ghrelin, and heat shock protein-70), and liver (heat shock protein-70), in addition to malondialdehyde level and superoxide dismutase activity in the intestine, liver, and blood, were measured in broilers at 42 days old. As main results, broilers fed T1 diet exhibited lower weight gain (3.222 kg) and worse feed conversion (1.70 kg/kg). However, diets containing non-commercial probiotics resulted in up to 3.584 kg of weight gain and improved feed conversion by up to 10%, similar to that observed for broilers of the T2 and T3 groups.
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Affiliation(s)
- Jéssica C das D Ribeiro
- Departamento de Zootecnia, Universidade Federal de Lavras, Lavras, Minas Gerais, 37200-900, Brazil
| | - Mariana M Drumond
- Departamento de Ciências Biológicas, Centro Federal de Educação Tecnológica de Minas Gerais, Minas Gerais, Belo Horizonte, 30421-169, Brazil
| | - Pamela Mancha-Agresti
- Departamento de Ciências Biológicas, Centro Federal de Educação Tecnológica de Minas Gerais, Minas Gerais, Belo Horizonte, 30421-169, Brazil
| | - João P F Guimarães
- Departamento de Zootecnia, Universidade Federal de Lavras, Lavras, Minas Gerais, 37200-900, Brazil
| | - Daiane da C Ferreira
- Departamento de Medicina Veterinária, Universidade Federal de Lavras, Lavras, Minas Gerais, 37200-900, Brazil
| | - Maria I A Martins
- Departamento de Zootecnia, Universidade Federal de Lavras, Lavras, Minas Gerais, 37200-900, Brazil
| | - Pedro M de M Murata
- Departamento de Zootecnia, Universidade Federal de Lavras, Lavras, Minas Gerais, 37200-900, Brazil
| | - Andressa C de Carvalho
- Departamento de Zootecnia, Universidade Federal de Lavras, Lavras, Minas Gerais, 37200-900, Brazil
| | - Raquel T Pereira
- Departamento de Zootecnia, Universidade de São Paulo-ESALQ, Piracicaba, São Paulo, 13418-900, Brazil
| | - Valdir Ribeiro Júnior
- Departamento de Zootecnia, Universidade Federal de Sergipe, Nossa Senhora da Glória, Sergipe, 49680-000, Brazil
| | - Vasco A de C Azevedo
- Departamento de Genética, Universidade Federal de Minas Gerais, Minas Gerais, Ecologia e Evolução, Belo Horizonte, 31270-901, Brazil
| | - Luciana de P Naves
- Departamento de Zootecnia, Universidade Federal de Lavras, Lavras, Minas Gerais, 37200-900, Brazil.
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Al-Baadani HH, Alhotan RA, Azzam MM. Evaluation of the Interaction between Gum Arabic Addition and Stocking Density on Growth Performance, Carcass Characteristics, and General Health Parameters of Broiler Chickens. Animals (Basel) 2023; 13:3024. [PMID: 37835630 PMCID: PMC10571560 DOI: 10.3390/ani13193024] [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: 08/21/2023] [Revised: 09/09/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
The present study aims to investigate the interaction between the addition of gum arabic as a prebiotic and various stocking densities on performance indicators, intestinal morphology, carcass characteristics, lymphoid organs, and selected blood indices of broiler chickens. A total of 816 1-day-old male broilers (Ross 308) were used and randomly divided into six blocks as replicates with eight treatments per block (forty-eight floor pens) based on 4 × 2 factorial arrangements with four dietary treatments containing 0.00% (CONT), 0.12% gum arabic (T1), 0.25% gum arabic (T2), and 0.10% commercial prebiotic (T3) and two stocking densities (normal = 28 kg/m2; high = 50 kg/m2). All performance indicators were evaluated during the feeding phases. Blood biochemical indicators were analyzed at 36 days of age. At 37 days of age, carcass characteristics, lymphoid organs, and intestinal morphology were measured. On days 1-36, growth performance indicators were negatively affected at high stocking density, but all growth performance indicators except feed intake improved in chickens receiving T1-T3 compared to CONT (p < 0.05). The relative weight of total small intestine and weight-to-length ratio showed a significant interaction between treatments and stocking density (p < 0.05). A high stocking density decreased pre-slaughter weight, carcass weight, and dressing yield, while legs and thymus increased (p < 0.05). None of the interactions or treatments affected carcass characteristics or lymphoid organs (p > 0.05). Indicators of blood biochemistry were not affected by treatments, stocking density, or their interaction (p > 0.05), except for uric acid, creatinine, and aspartate aminotransferase, which were higher at a high stocking density (p < 0.05). In conclusion, gum arabic as a prebiotic improved growth performance, production efficiency, and intestinal morphology in broilers. In contrast, high stocking density negatively affected performance, production efficiency, some blood indices, carcass weight, dressing yield, and intestinal morphology. Further research is needed to determine the mechanism.
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Affiliation(s)
- Hani H. Al-Baadani
- Department of Animal Production, College of Food and Agriculture Science, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia;
| | - Rashed A. Alhotan
- Department of Animal Production, College of Food and Agriculture Science, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia;
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Juiputta J, Chankitisakul V, Boonkum W. Appropriate Genetic Approaches for Heat Tolerance and Maintaining Good Productivity in Tropical Poultry Production: A Review. Vet Sci 2023; 10:591. [PMID: 37888543 PMCID: PMC10611393 DOI: 10.3390/vetsci10100591] [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: 08/14/2023] [Revised: 09/16/2023] [Accepted: 09/22/2023] [Indexed: 10/28/2023] Open
Abstract
Heat stress is a major environmental threat to poultry production systems, especially in tropical areas. The effects of heat stress have been discovered in several areas, including reduced growth rate, reduced egg production, low feed efficiency, impaired immunological responses, changes in intestinal microflora, metabolic changes, and deterioration of meat quality. Although several methods have been used to address the heat stress problem, it persists. The answer to this problem can be remedied sustainably if genetic improvement approaches are available. Therefore, the purpose of this review article was to present the application of different approaches to genetic improvement in poultry in the hope that users will find suitable solutions for their poultry population and be able to plan future poultry breeding programs.
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Affiliation(s)
- Jiraporn Juiputta
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand; (J.J.); (V.C.)
| | - Vibuntita Chankitisakul
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand; (J.J.); (V.C.)
- Network Center for Animal Breeding and Omics Research, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Wuttigrai Boonkum
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand; (J.J.); (V.C.)
- Network Center for Animal Breeding and Omics Research, Khon Kaen University, Khon Kaen 40002, Thailand
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12
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Sayed Y, Hassan M, Salem HM, Al-Amry K, Eid GE. Prophylactic influences of prebiotics on gut microbiome and immune response of heat-stressed broiler chickens. Sci Rep 2023; 13:13991. [PMID: 37634024 PMCID: PMC10460421 DOI: 10.1038/s41598-023-40997-7] [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: 06/16/2023] [Accepted: 08/20/2023] [Indexed: 08/28/2023] Open
Abstract
Climatic changes and elevated ambient temperature are significant environmental stressors with a negative impact on birds' physiological, immunological, and behavioral status, increasing their susceptibility to stressors and immunosuppression and consequently increasing intestinal permeability (leaky gut). Prebiotics have been utilized to stop or diminish the harmful effects of stress in chickens. We aimed to evaluate the role of mannan-oligosaccharides, and beta-D-glucan prebiotics supplements in drinking water against experimentally induced heat stress (HS) on broiler chickens and study their impact on birds' performance, gut microbiome, and immune response. A total of 120 1-day-old Ross broiler chicks were allocated into four groups (30 birds/group), and each group was subdivided into triplicates (10 birds each). The experimental groups were classified as follows; the 1st (G1) control birds, the 2nd (G2) birds exposed experimentally to HS, the 3rd (G3) birds administered prebiotics in drinking water without exposure to HS, and the 4th (G4) birds exposed to HS and administered prebiotics in drinking water. After each vaccination, blood samples and serum samples were collected to evaluate the birds' immune status. Fecal samples were also collected for the molecular evaluation of the gut microbiome based on the genetic analyses and sequencing of 16S rRNA gene. The results showed that HS has reduced the birds' performance and badly affected the birds' immune response and gut microbiome. However, the addition of prebiotics to drinking water, with or without stress, enhanced the growth rate, maintained a normal gut microbiome, and improved immune parameters. Moreover, the usage of prebiotics improved the chicken gut microbiome and alleviated the negative effect of heat stress. Administering prebiotics significantly (p < 0.05) increased the relative abundance of beneficial bacteria and eradicated pathogenic ones in the birds' gut microbiome. Prebiotics showed a positive effect on the gut microbiome and the immune status of chickens under HS in addition to their efficacy as a growth promoter.
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Affiliation(s)
- Yara Sayed
- Department of Microbiology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
| | - Mariam Hassan
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo, 11562, Egypt.
- Department of Microbiology and Immunology, Faculty of Pharmacy, Galala University, New Galala City, Suez, Egypt.
| | - Heba M Salem
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Khaled Al-Amry
- Department of Microbiology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Gamal E Eid
- Department of Microbiology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
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13
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Olutumise AI. Intensity of adaptations to heat stress in poultry farms: A behavioural analysis of farmers in Ondo state, Nigeria. J Therm Biol 2023; 115:103614. [PMID: 37336113 DOI: 10.1016/j.jtherbio.2023.103614] [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: 10/20/2022] [Revised: 06/07/2023] [Accepted: 06/08/2023] [Indexed: 06/21/2023]
Abstract
The detrimental consequences of heat stress due to high ambient temperatures, particularly in the poultry industry, have led to the invention of several adaptation strategies. However, there is still limited information on the intensity of adaptations and the likely behavioural factors that influence farmers' decisions. Thus, understanding the practical adaptation behaviours of poultry farmers would improve our knowledge of the fundamental mechanisms for developing effective interventions. To fill this void, using a count data model, the study empirically examines the farmers' behavioural factors and the intensity of heat stress adaptation strategies' adoption among poultry farmers in Ondo State, Nigeria. The data were drawn from a survey of 150 poultry farmers using a multistage sampling procedure. The empirical results show that the majority of the farmers perceived an increase in temperature, frequently experienced heat stress, and believed that heat stress is induced by climate change. An average of six adaptation strategies were simultaneously adopted to mitigate heat stress in the area. The results of the count regression model reveal that farm-level factors such as permanent water sources, the quantity of feed, and bird stock density exert a significant effect on the intensity of adaptations. Climate-related factors such as access to climate information, training participation, perceived increases in temperature, attitudes toward climate change, and motives for adoption have a significant behavioural effect on the intensity of adaptations. Likewise, variables such as poultry farming experience, educational status, and access to credit are accounted for as socioeconomic behavioural factors that influence the intensity of adopting heat stress adaptation strategies in the area. This concludes that behavioural factors are crucial in addressing heat stress adaptations and assisting in improving environmental management, which would form a key variable in the policy interventions.
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Affiliation(s)
- Adewale Isaac Olutumise
- Department of Agricultural Economics, Adekunle Ajasin University, P.M.B. 001, Akungba-Akoko, Ondo State, Nigeria; Department of Economic and Business Sciences, Walter Sisulu University, South Africa.
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14
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Shi X, Liang Q, Wang E, Jiang C, Zeng L, Chen R, Li J, Xu G, Zheng J. A Method to Reduce the Occurrence of Egg Translucency and Its Effect on Bacterial Invasion. Foods 2023; 12:2538. [PMID: 37444276 DOI: 10.3390/foods12132538] [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: 06/05/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Translucent egg consumption is low due to consumer acceptance and quality concerns, which is a problem that egg producers need to address. This study was performed to evaluate the reasons for the high occurrence of egg translucency in summer, as well as whether the addition of mono-dicalcium phosphate (MDCP) to the diet can relieve eggshell translucency and whether eggshell translucency is associated with the risk of bacterial invasion. A total of 72 laying hens that were 36 weeks old were randomly divided into control (CON) and MDCP groups and fed in the same environment. Results showed that the number of translucent eggs increases in July and August as the temperature and humidity increase. Compared with the CON group, in July, August, and October, the translucent egg grade (TEG) of the MDCP group was lower than that of the CON group (p < 0.05). TEG was correlated with mastoid space height (MSH), width (MSW), and area (MSA) (correlation coefficients 0.63, 0.59, and 0.68, respectively, p ≤ 0.05). There was no significant difference in the invasion rate of E. coli between translucent and non-translucent egg groups (47.2% vs. 39.33%), and translucent area and non-translucent area (13.49% vs. 15.08%). In conclusion, our results show that dietary MDCP may alleviate eggshell translucency and that eggshell translucency would not increase the probability of E. coli cross-shell penetration rate.
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Affiliation(s)
- Xuefeng Shi
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Qianni Liang
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Enling Wang
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Caiyun Jiang
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Lingsen Zeng
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Ruochen Chen
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Junying Li
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Guiyun Xu
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Jiangxia Zheng
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
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15
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Nayak N, Bhanja SK, Chakurkar EB, Sahu AR, Ashitha K, Shivasharanappa N, D'Mello AD. Impact of bioclimatic factors on physio-biochemical and molecular response of slow-growing poultry reared in tropics. Trop Anim Health Prod 2023; 55:253. [PMID: 37386351 DOI: 10.1007/s11250-023-03668-3] [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: 07/18/2022] [Accepted: 06/15/2023] [Indexed: 07/01/2023]
Abstract
Most of the climatic studies projected on heat stress have considered heat extremes, but not the humidity. Hence, this work was carried out to evaluate thermotolerance, production performance, physio-biochemical and immunological response of slow-growing poultry towards various temperature-humidity levels in coastal climate. A total of 240 straight run CARI-Debendra birds were reared in three groups based on temperature-humidity indices (THI > 80, = 75-80 and < 75). Significant difference (P < 0.01) in rectal and body surface temperatures was observed among treatment groups. Lowest body weight was observed in THI > 80 group as 1.45 kg at 12 weeks. There was no significant difference in feed intake and FCR; however, total water intake had increased in heat-stressed group. Birds under THI > 80 group had significantly low gizzard weight only at the 12th week compared to other groups. Significant differences (P < 0.05) in relative weight and length of intestine were noticed which was comparable between seasonal control and THI > 80 group but lower than THI < 75 group at the 6th week. However, at the 12th week, intestinal weight varied among the groups (P = 0.08), but intestinal size did not differ. Among immune organs, significant difference (P < 0.05) was noted only in weight of thymus. Except Cl-, other biochemical indices such as cholesterol, lactate dehydrogenase, creatinine kinase, K+ and Na+ did not differ among treatment groups. Relative expression of HSP70 gene was differed significantly (P < 0.01) in the liver, intestine and breast muscles under different THI. The changes reported in seasonal control group during month of October to December revealed better thermotolerance capacity and adaptability of CARI-Debendra birds to coastal hot-humid climate. However, response of this breed to heat stress (THI > 80) reported decrease in growth, immune response and mineral balance attributable to heat loss efficacy in high humidity.
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Affiliation(s)
- Nibedita Nayak
- ICAR-Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India.
- ICAR-Central Coastal Agricultural Research Institute, Velha Goa, Goa, India.
| | - Subrat Kumar Bhanja
- ICAR-Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
- ICAR-Central Coastal Agricultural Research Institute, Velha Goa, Goa, India
- ICAR-Central Avian Research Institute, Bareilly, Uttar Pradesh, India
| | - Eaknath B Chakurkar
- ICAR-Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
- ICAR-Central Coastal Agricultural Research Institute, Velha Goa, Goa, India
- ICAR-Central Island Agricultural Research Institute, Port Blair, A&N Islands, India
| | - Amiya Ranjan Sahu
- ICAR-Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
- ICAR-Central Coastal Agricultural Research Institute, Velha Goa, Goa, India
| | - K Ashitha
- ICAR-Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
- ICAR-Central Coastal Agricultural Research Institute, Velha Goa, Goa, India
| | - N Shivasharanappa
- ICAR-Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
- ICAR-Central Coastal Agricultural Research Institute, Velha Goa, Goa, India
- ICAR-National Institute of Veterinary Epidemiology and Disease Informatics, Bengaluru, India
| | - Atasha Delia D'Mello
- ICAR-Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
- ICAR-Central Coastal Agricultural Research Institute, Velha Goa, Goa, India
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16
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Hassan S, Habashy W, Ghoname M, Elnaggar A. Blood hematology and biochemical of four laying hen strains exposed to acute heat stress. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2023; 67:675-686. [PMID: 36853273 DOI: 10.1007/s00484-023-02445-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 01/10/2023] [Accepted: 02/19/2023] [Indexed: 06/18/2023]
Abstract
This study is aimed at defining physiological responses to heat stress (HS) in four different lines to better understand the underlying mechanisms of various responses in these genotypes when exposed to heat for a short period. At the age of 30 weeks, 176 laying hens (44 each from the Fayoumi, Golden Sabahia, White Leghorn, and Lohman Brown) were allotted to 2 groups (thermoneutral temperature (26.0 ± 1 °C) and HS (35 ± 1 °C) with relative humidity 55 ± 5% for 6 h/day). Blood samples were collected after 6 h of heat. According to the findings of this study, acute HS increased the concentration of LH in hens by 20.2% while decreasing the concentration of FSH by 4.24. Genotype was found to have a significant effect on blood hematology and most blood biochemical. Significant differences were found between heat stress and genotype in most of the blood parameters. Golden sabahia laying hens had significantly higher WBC, IgY, and LH levels than other groups under HS. The findings of the current study suggested that Lohman Brown was less tolerant to acute HS than another genotype.
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Affiliation(s)
- Saber Hassan
- Department of Animal and Poultry Production, Faculty of Agriculture, Damanhour University, Damanhour, 22511, Egypt
| | - Walid Habashy
- Department of Animal and Poultry Production, Faculty of Agriculture, Damanhour University, Damanhour, 22511, Egypt.
| | - Mennatallah Ghoname
- Department of Animal and Poultry Production, Faculty of Agriculture, Damanhour University, Damanhour, 22511, Egypt
| | - Asmaa Elnaggar
- Department of Animal and Poultry Production, Faculty of Agriculture, Damanhour University, Damanhour, 22511, Egypt
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17
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Bayril T. Effects of dietary stevia and ginger extracts on fattening
performance, organ weights and serum biochemical parameters
in quails exposed to heat stress. JOURNAL OF ANIMAL AND FEED SCIENCES 2023. [DOI: 10.22358/jafs/159282/2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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18
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Effects of Dietary Supplementation of L-Carnitine and Mannan-Oligosaccharides on Growth Performance, Selected Carcass Traits, Content of Basic and Mineral Components in Liver and Muscle Tissues, and Bone Quality in Turkeys. Animals (Basel) 2023; 13:ani13040770. [PMID: 36830557 PMCID: PMC9951985 DOI: 10.3390/ani13040770] [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: 02/02/2023] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 02/25/2023] Open
Abstract
The study aimed to determine the effect of L-carnitine and Bio-Mos administration on selected production performance, slaughter parameters, elemental and mineral content of liver, breast and thigh muscles, and physical, morphometric, strength and bone mineral composition parameters of turkeys. The experiment was conducted on 360 six-week-old Big-6 turkey females, randomly divided into three groups of 120 birds each (six replicates of 20 birds). The turkeys of the control group were fed standard feed without additives; group II was fed with drinking water, a preparation containing L-carnitine at a dose of 0.83 mL/L, while group III was provided mixed feed with 0.5% Bio-Mos. The addition of L-carnitine and Bio-Mos increased body weight at 16 weeks (p = 0.047) and reduced the proportion of fat in the breast muscle (p = 0.029) and liver (p = 0.027). It also modified the content of some minerals in breast muscle, thigh muscle, liver, and bone. Furthermore, the addition of L-carnitine and Bio-Mos increased bone mass and length and modified the value of selected morphometric and strength parameters. The results indicate a positive effect of the applied feed additives on selected rearing indices and carcass quality while improving the elasticity and fracture toughness of the femur. There is a need for further research to determine optimal doses of L-carnitine and Bio-Mos in poultry nutrition.
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19
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Loengbudnark W, Chankitisakul V, Boonkum W. The genetic impact of heat stress on the egg production of Thai native chickens (Pradu Hang dum). PLoS One 2023; 18:e0281328. [PMID: 36735733 PMCID: PMC9897533 DOI: 10.1371/journal.pone.0281328] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 01/20/2023] [Indexed: 02/04/2023] Open
Abstract
Sustainable poultry production in adverse weather conditions is a widely debated issue, which has led to research into the development of breeds of poultry that are genetically resistant to heat. This study aimed to investigate the effects of heat stress on the genetics of monthly egg production and examine the threshold point of heat stress for preventing thermal stress and its effects on chicken productivity. The data of 5,965 monthly egg production records of 629 Thai native Pradu Hang dum chickens were used for analysis in combination with the temperature-humidity index (THI) calculated by meteorological data near the testing station. The average THI throughout the year was 76.6, and the highest was 82. The THI data were subsequently used to find the threshold point of heat stress. The THI equation used in this study was chosen by its highest correlation (-0.306) between THI values and monthly egg production. At a THI of 74, the lowest -2 logL was found and was considered the threshold point of heat stress. This means that monthly egg production would start decreasing when the THI was 74. Heritability was 0.15±0.03, and genetic and permanent environmental correlations were -0.29 and -0.48, respectively. The threshold point was used to estimate the estimated breeding values (EBVs) of the monthly egg production and heat stress individually, and EBVs were calculated into the selection index. The selection index values when the animal was selected for the replacement herd for all chickens (top 50%, 30%, 20%, and 10%) were 0.14, 0.90, 1.27, 1.53, and 1.91, respectively, and the genetic progress was 0.55, 0.60, 0.68, 0.75, and 0.77, respectively. This shows that the selection index values are lower if there are many selected animals. The recommendation for animal genetic selection is that the top 10% is appropriately because it seems to be most preferred. Therefore, using a selection index for high egg production and heat tolerance in Thai native chickens is possible to achieve genetic assessment in a large population.
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Affiliation(s)
- Wipas Loengbudnark
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
| | - Vibuntita Chankitisakul
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
- The Research and Development Network Center of Animal Breeding and Omics, Khon Kaen University, Khon Kaen, Thailand
| | - Wuttigrai Boonkum
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
- The Research and Development Network Center of Animal Breeding and Omics, Khon Kaen University, Khon Kaen, Thailand
- * E-mail:
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20
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Shynkaruk T, Long K, LeBlanc C, Schwean-Lardner K. Impact of stocking density on the welfare and productivity of broiler chickens reared to 34 days of age. J APPL POULTRY RES 2023. [DOI: 10.1016/j.japr.2023.100344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023] Open
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21
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Du M, Cheng Y, Chen Y, Wang S, Zhao H, Wen C, Zhou Y. Dietary supplementation with synbiotics improves growth performance, antioxidant status, immune function, and intestinal barrier function in broilers subjected to cyclic heat stress. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:18026-18038. [PMID: 36207632 DOI: 10.1007/s11356-022-23385-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
This study investigated the effects of synbiotics supplementation on growth performance, antioxidant status, immune function, and intestinal barrier function in broilers subjected to cyclic heat stress. One hundred and forty-four 22-day-old male broilers were randomly assigned to one of three treatment groups of six replicates each for a 21-day study, with eight birds per replicate. Broilers in the control group were reared at a thermoneutral temperature and received a basal diet. Broilers in the other two heat-stressed groups were fed a basal diet supplemented without (heat-stressed group) and with 1.5 g/kg synbiotic (synbiotic group). One and a half gram of the synbiotic consisted with 3 × 109 colony forming units (CFU) Clostridium butyricum, 1.5 × 109 CFU Bacillus licheniformis, 4.5 × 1010 CFU Bacillus subtilis, 600 mg yeast cell wall, and 150 mg xylooligosaccharide. Compared with the control group, heat stress increased rectal temperatures at 28, 35, and 42 days of age, respectively (P < 0.05). Birds subjected to heat stress had reduced weight gain, feed intake, and feed efficiency during 22 to 42 days (P < 0.05). In contrast, supplementation with the synbiotic decreased rectal temperature at 42 days of age and elevated weight gain of heat stress-challenged broilers (P < 0.05). Heat-stressed broilers exhibited a lower superoxide dismutase (SOD) activity in jejunal mucosa and a higher malondialdehyde accumulation in serum, liver and jejunal mucosa (P < 0.05), and the regressive SOD activity was normalized to control level when supplementing synbiotic (P < 0.05). Heat stress increased interleukin-1β (IL-1β) and interferon-γ (IFN-γ) levels in serum and IL-1β content in jejunal mucosa of broilers (P < 0.05). Synbiotic reduced IL-1β level in serum of broilers subjected to heat stress (P < 0.05). Compared with the control group, elevated serum diamine oxidase activity and reduced jejunal villus height were observed in broilers of the heat-stressed group (P < 0.05), and the values of these two parameters in the synbiotic group were intermediate (P > 0.05). Heat stress upregulated mRNA abundance of IL-1β and IFN-γ and downregulated gene expression levels of occluding and zonula occluden-1 (ZO-1) in jejunal mucosa of broilers (P < 0.05). The alterations in the mRNA expression levels of jejunal IL-1β and ZO-1 were reversed by the synbiotic (P > 0.05). In conclusion, dietary synbiotics could improve growth performance, antioxidant capacity, immune function, and intestinal barrier function in heat-stressed broilers.
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Affiliation(s)
- Mingfang Du
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Yefei Cheng
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Yueping Chen
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Shiqi Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Haoran Zhao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Chao Wen
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Yanmin Zhou
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China.
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22
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Archer GS. Evaluation of an Extract Derived from the Seaweed Ascophyllum nodosum to Reduce the Negative Effects of Heat Stress on Broiler Growth and Stress Parameters. Animals (Basel) 2023; 13:ani13020259. [PMID: 36670798 PMCID: PMC9854445 DOI: 10.3390/ani13020259] [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: 11/11/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
Heat stress is one on the main welfare issues that broiler chickens face and it can lead not only to decreased welfare but production as well. The seaweed Ascophyllum nodosum has demonstrated the ability in several species to decrease body temperature and affect immune function. To determine whether adding an extract of this seaweed into the diet of broiler chickens would decrease the negative effects of prolong heat stress on broiler growth, a study was conducted. Broilers were fed a control diet with the seaweed extract added at a rate of 0.5 kg/metric ton of feed throughout a 42-day growout or just a control diet. Half of each feed treatment was exposed to two weeks of heat stress (35 °C for 16 h/day) starting at d28 and continued until the end of the trial. Therefore, there were four treatments: a control non-stressed (CNS), control heat stressed (CHS), seaweed-supplemented non-stressed (SWNS), and seaweed-supplemented heat stressed (SWHS). To determine stress susceptibility, the following measures were collected: bilateral asymmetry (ASYM, n = 60), heterophil to lymphocyte ratios (HL, n = 24), plasma heat shock protein 70 (HSP70, n = 24) and plasma corticosterone concentrations (CORT, n = 24). Feed conversion, uniformity and weight gain were also determined. The CHS birds had higher (p < 0.05) CORT, ASYM, HSP70 and HL than the CNS, SWNS and SWHS birds. The CNS and SWNS birds did not differ (p > 0.05) in body weight at d42 but they were both heavier (p < 0.05) than in both the heat-stressed treatments. Furthermore, the CHS weighed less (p < 0.05) that the SWHS birds. The non-heat-stressed treatments did not differ (p > 0.05) from each other in FCR, however the two heat-stressed treatments did differ (p < 0.05) from each other in FCR, with the SWHS birds having better FCR than the CHS birds. Heat stress affected bird uniformity with non-heat-stressed treatments having more (p < 0.05) uniformity of body weights within a pen than the heat stress treatments. These results demonstrate that adding this seaweed extract to the feed of poultry can reduce their stress during a prolonged heat stress event, though it had no effect on growth or feed conversion. This feed additive could be used to improve the welfare of poultry during heat stress events.
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Affiliation(s)
- Gregory S Archer
- Department of Poultry Science, Texas A&M University, College Station, TX 77843, USA
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23
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Peng XY, Xing T, Li JL, Zhang L, Jiang Y, Gao F. Guanidinoacetic acid supplementation improves intestinal morphology, mucosal barrier function of broilers subjected to chronic heat stress. J Anim Sci 2023; 101:skac355. [PMID: 36283032 PMCID: PMC9831137 DOI: 10.1093/jas/skac355] [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: 09/13/2022] [Accepted: 10/23/2022] [Indexed: 01/13/2023] Open
Abstract
The current study is designed to investigate dietary guanidinoacetic acid (GAA) supplementation on the growth performance, intestinal histomorphology, and jejunum mucosal barrier function of broilers that are subjected to chronic heat stress (HS). A total of 192 male broilers (28-d old) were randomly allocated to four groups. A chronic HS model (at a temperature of 32 °C and 50%-60% relative humidity for 24 h daily) was applied in the experiment. Normal control (NC, ad libitum feeding, 22 °C), HS group (HS, ad libitum feeding, 32 °C), pair-fed group (PF, received food equivalent to that consumed by the HS group on the previous day, 22 °C), guanidinoacetic acid group (HG, ad libitum feeding, supplementing the basal diet with 0.6 g/kg GAA, 32 °C). The experiment lasted from 28 to 35 and 28 to 42 d of age of broilers. Our results showed that broilers subjected to HS had lower average daily feed intake and average daily gain (P < 0.05), higher feed-to-gain ratio and relative length of the small intestine (P < 0.05), as well as lower relative weight and weight per unit length of the small intestine (P < 0.05). HS damaged the small intestinal histomorphology by decreasing the small intestinal VH and the VH/CD (P < 0.05). Compared with the HS group, supplementation with 0.6 g/kg GAA increased jejunal VH and VH/CD (P < 0.05), but decreased relative weight and relative length of the small intestine (P < 0.05). Moreover, in comparison with NC, HS elevated intestinal permeability (D-Lactic acid concentration and diamine oxidase activity) and mRNA expression levels of interleukin-1β, interleukin-6, and tumor necrosis factor-α (P < 0.05), reduced jejunal mucus thickness, number of goblet cells, IgA + cell density, and mucin2 mRNA expression level of broilers (P < 0.05). Compared with the HS group, dietary GAA elevated jejunal mucus thickness, goblet cell number and IgA+ cell density (P < 0.05), and up-regulated jejunal mRNA expression of interleukin-1β and tumor necrosis factor-α (P < 0.05). In conclusion, HS impaired growth performance, and the intestinal mucosal barrier function of broilers. Dietary supplementation with 0.6 g/kg GAA alleviated HS-induced histomorphology changes of small intestine and jejunal mucosal barrier dysfunction.
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Affiliation(s)
- Xu Y Peng
- College of Animal Science and Technology, Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing Agricultural University, Nanjing 210095, People’s Republic of China
| | - Tong Xing
- College of Animal Science and Technology, Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing Agricultural University, Nanjing 210095, People’s Republic of China
| | - Jiao L Li
- Institute of Agricultural Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, People’s Republic of China
| | - Lin Zhang
- College of Animal Science and Technology, Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing Agricultural University, Nanjing 210095, People’s Republic of China
| | - Yun Jiang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, People’s Republic of China
| | - Feng Gao
- College of Animal Science and Technology, Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing Agricultural University, Nanjing 210095, People’s Republic of China
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Goel A, Ncho CM, Gupta V, Choi YH. Embryonic modulation through thermal manipulation and in ovo feeding to develop heat tolerance in chickens. ANIMAL NUTRITION 2023; 13:150-159. [PMID: 37123616 PMCID: PMC10130083 DOI: 10.1016/j.aninu.2023.01.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 12/06/2022] [Accepted: 01/10/2023] [Indexed: 01/19/2023]
Abstract
Healthy chickens are necessary to meet the ever-increasing demand for poultry meat. Birds are subjected to numerous stressful conditions under commercial rearing systems, including variations in the environmental temperature. However, it is difficult to counter the effects of global warming on the livestock industry. High environmental temperature is a stressful condition that has detrimental effects on growth and production performance, resulting in decreased feed intake, retarded growth, compromised gut health, enhanced oxidative stress, and altered immune responses. Traditional approaches include nutritional modification and housing management to mitigate the harmful effects of hot environments. Currently, broiler chickens are more susceptible to heat stress (HS) than layer chickens because of their high muscle mass and metabolic rate. In this review, we explored the possibility of in ovo manipulation to combat HS in broiler chickens. Given their short lifespan from hatching to market age, embryonic life is thought to be one of the critical periods for achieving these objectives. Chicken embryos can be modulated through either temperature treatment or nourishment to improve thermal tolerance during the rearing phase. We first provided a brief overview of the harmful effects of HS on poultry. An in-depth evaluation was then presented for in ovo feeding and thermal manipulation as emerging strategies to combat the negative effects of HS. Finally, we evaluated a combination of the two methods using the available data. Taken together, these investigations suggest that embryonic manipulation has the potential to confer heat resistance in chickens.
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Effects of garlic and lemon essential oils on performance, digestibility, plasma metabolite, and intestinal health in broilers under environmental heat stress. BMC Vet Res 2022; 18:430. [PMID: 36503512 PMCID: PMC9743731 DOI: 10.1186/s12917-022-03530-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 11/24/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Natural feed additives play an important role in poultry production due to their safety and potential properties as an antioxidant and antimicrobial, as well as a growth stimulant. The present research was designed to assess the influence of dietary supplementation of either garlic, lemon essential oil, or their mixture on performance, nutrient digestibility, plasma constituents, immunity, and oxidative status, as well as intestinal development assessed by microbiota-histomorphology development in broilers under environmental heat stress. METHODS A total of 480 broiler chicks (Ross 308) at one-day-old were randomly divided into four groups (120 chicks/ group). The control group received the basal diet (CON), while the other three groups received the basal diet supplemented with 200 mg/kg garlic essential oil (GEO), 200 mg/kg lemon essential oil (LEO), and their mixture (GLO) 200 mg/kg diet, respectively for 35 days. RESULTS The obtained results revealed that broilers fed essential oils as a mixture or individually had an improvement in average body weight, feed conversion ratio, carcass dressing, and an increase in digestive enzymes activities compared to the control group, furthermore, there was a reduction in the mortality rate and abdominal fat content. Adding essential oils as a mixture or individually led to a decrease in (P < 0.05) blood plasma triglycerides, cholesterol, low-density lipoprotein, and an increase in high-density lipoprotein. Broilers fed diets supplemented with essential oils as a mixture or individually had higher values of superoxide dismutase and glutathione peroxidase; while plasma malondialdehyde was lower (P < 0.05) compared to the control diet. Moreover, there was a significant enhancement in intestinal microbial content, and intestinal histological status of chickens fed with essential oils. CONCLUSIONS Conclusively, including the mixture of essential oils improved performance, nutrient digestibility, and digestive enzymes activities. It also enhanced immunity, antioxidant state, and lipid profile, and gut microbiota- histomorphology in broilers. It was proposed that the broilers diet be supplemented with a mixture of essential oils to a mitigation of the effects of heat stress.
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Kuter E, Cengiz Ö, Köksal BH, Sevim Ö, Tatlı O, Ahsan U, Güven G, Önol AG, Bilgili SF. Litter quality and incidence and severity of footpad dermatitis in heat stressed broiler chickens fed supplemental zinc. Livest Sci 2022. [DOI: 10.1016/j.livsci.2022.105145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Effect of Brachiaria decumbens as a novel supplementation on the production performance of broiler chickens. Trop Anim Health Prod 2022; 54:386. [DOI: 10.1007/s11250-022-03384-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 11/09/2022] [Indexed: 11/19/2022]
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Oladokun S, Adewole DI. Biomarkers of heat stress and mechanism of heat stress response in Avian species: Current insights and future perspectives from poultry science. J Therm Biol 2022; 110:103332. [DOI: 10.1016/j.jtherbio.2022.103332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 09/09/2022] [Accepted: 09/13/2022] [Indexed: 11/28/2022]
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Heat stress in pigs and broilers: role of gut dysbiosis in the impairment of the gut-liver axis and restoration of these effects by probiotics, prebiotics and synbiotics. J Anim Sci Biotechnol 2022; 13:126. [PMCID: PMC9673442 DOI: 10.1186/s40104-022-00783-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 09/14/2022] [Indexed: 11/19/2022] Open
Abstract
AbstractHeat stress is one of the most challenging stressors for animal production due to high economic losses resulting from impaired animal’s productivity, health and welfare. Despite the fact that all farm animal species are susceptible to heat stress, birds and pigs are particularly sensitive to heat stress due to either lacking or non-functional sweat glands. Convincing evidence in the literature exists that gut dysbiosis, a term used to describe a perturbation of commensal gut microbiota, develops in broilers and pigs under heat stress. Owing to the protective role of commensal bacteria for the gut barrier, gut dysbiosis causes a disruption of the gut barrier leading to endotoxemia, which contributes to the typical characteristics of heat stressed broilers and growing and growing-finishing pigs, such as reduced feed intake, decreased growth and reduced lean carcass weight. A substantial number of studies have shown that feeding of probiotics, prebiotics and synbiotics is an efficacious strategy to protect broilers from heat stress-induced gut barrier disruption through altering the gut microbiota and promoting all decisive structural, biochemical, and immunological elements of the intestinal barrier. In most of the available studies in heat stressed broilers, the alterations of gut microbiota and improvements of gut barrier function induced by feeding of either probiotics, prebiotics or synbiotics were accompanied by an improved productivity, health and/or welfare when compared to non-supplemented broilers exposed to heat stress. These findings indicate that the restoration of gut homeostasis and function is a key target for dietary interventions aiming to provide at least partial protection of broilers from the detrimental impact of heat stress conditions. Despite the fact that the number of studies dealing with the same feeding strategy in heat stressed pigs is limited, the available few studies suggest that feeding of probiotics might also be a suitable approach to enhance productivity, health and welfare in pigs kept under heat stress conditions.
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Oluwagbenga EM, Tetel V, Schober J, Fraley GS. Chronic heat stress part 1: Decrease in egg quality, increase in cortisol levels in egg albumen, and reduction in fertility of breeder pekin ducks. Front Physiol 2022; 13:1019741. [PMID: 36439270 PMCID: PMC9692011 DOI: 10.3389/fphys.2022.1019741] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 10/31/2022] [Indexed: 10/20/2023] Open
Abstract
Global warming poses detrimental effects on poultry production leading to substantial economic losses. The goal of our experiment was to test the hypothesis that heat stress (HS) would alter welfare and egg quality (EQ) of breeder ducks. Furthermore, we wanted to test if HS would increase cortisol levels in egg albumen. Adult Pekin ducks were randomly assigned to two different rooms at 85% lay with 60 hens and 20 drakes per room. Baseline data including body weight, body condition scores (BCS), and egg production/quality were collected the week preceding heat treatment. Ducks were subjected to cyclic HS of 35°C for 10h/day and 29.5°C for the remaining 14h/day for 3 weeks while the control room was maintained at 22°C. Eggs were collected daily and analyzed weekly for quality assessment, and for albumen glucocorticoid (GCs) levels using mass spectrometry. One week before the exposure to HS, 10 hens and 5 drakes were euthanized and the same number again after 3 weeks and birds necropsied. Data analyses were done by 1- or 2-way ANOVA as appropriate with a Tukey-Kramer post hoc test. BCS were analyzed using a chi-squared test. A p ≤ 0.05 was considered significant. Circulating levels of corticosterone were significantly (p < 0.01) elevated at week 1 only in the HS hens. The circulating levels of cortisol increased significantly at week 1 and 2 (p < 0.05), and week 3 (p < 0.01) in the hens and at weeks 2 and 3 only (p < 0.05) in the drakes. Feather quality scores (p < 0.01), feather cleanliness scores (p < 0.001) and footpad quality scores (p < 0.05) increased significantly in the HS group. HS elicited a significant (p < 0.001) decrease in egg production at weeks 1 and 3. Hens in the HS group showed significantly decreased BW (p < 0.001) and number of follicles (p < 0.05). Shell weight decreased significantly at week 1 only (p < 0.05) compared to controls. Yolk weight decreased significantly at week 3 (p < 0.01) compared to controls. HS elicited a significant increase in albumen cortisol levels at week 1 (p < 0.05) and week 3 (p < 0.05). Thus, cortisol may provide critical information to further understand and to improve welfare.
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Affiliation(s)
| | | | | | - G. S. Fraley
- Animal Sciences, Purdue University, West Lafayette, IN, UnitedStates
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Potential Probiotics Role in Excluding Antibiotic Resistance. J FOOD QUALITY 2022. [DOI: 10.1155/2022/5590004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background. Antibiotic supplementation in feed has been continued for the previous 60 years as therapeutic use. They can improve the growth performance and feed efficiency in the chicken flock. A favorable production scenario could favor intestinal microbiota interacting with antibiotic growth promoters and alter the gut bacterial composition. Antibiotic growth promoters did not show any beneficial effect on intestinal microbes. Scope and Approach. Suitable and direct influence of growth promoters are owed to antimicrobial activities that reduce the conflict between host and intestinal microbes. Unnecessary use of antibiotics leads to resistance in microbes, and moreover, the genes can relocate to microbes including Campylobacter and Salmonella, resulting in a great risk of food poisoning. Key Findings and Conclusions. This is a reason to find alternative dietary supplements that can facilitate production, growth performance, favorable pH, and modulate gut microbial function. Therefore, this review focus on different nutritional components and immune genes used in the poultry industry to replace antibiotics, their influence on the intestinal microbiota, and how to facilitate intestinal immunity to overcome antibiotic resistance in chicken.
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Mohammed A, Hu J, Murugesan R, Cheng HW. Effects of a synbiotic as an antibiotic alternative on behavior, production performance, cecal microbial ecology, and jejunal histomorphology of broiler chickens under heat stress. PLoS One 2022; 17:e0274179. [PMID: 36170274 PMCID: PMC9518870 DOI: 10.1371/journal.pone.0274179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/24/2022] [Indexed: 11/19/2022] Open
Abstract
The aim of this study was to examine if synbiotics present similar efficiency to a common antibiotic used in poultry production under heat stress (HS) conditions. Two hundred and forty-one-day-old male Ross 708 broiler chicks were distributed among 3 treatments with 8 pens per treatment of 80 birds each for a 42-day trial. From day 15, birds were heat stressed (32°C for 9 h daily, HS) and fed the basal diet (CONT), the basal diet mixed with an antibiotic (Bactiracin Methylene Disalicylate) (0.05 g/kg of feed, BMD) or a synbiotic (0.5 g/kg of feed, SYN). The treatment effects on bird behavior, production performance, jejunal histomorphology, and cecal microbial ecology were examined. Behavioral observation was recorded by using instantaneous scan sampling technique. Production parameters were measured on day 14, 28, and 42. Cecal microbial populations of Escherichia coli and Lactobacilli and jejunal histomorphological parameters were measured at day 42. The results showed that, SYN birds exhibited more feeding and preening but less drinking and panting behaviors compared with both BMD and CONT birds (P < 0.05). The SYN birds also had higher body weight (BW) at both day 28 and 42 compared to CONT birds (P < 0.05). At the end of the experiment, the counts of Escherichia coli of SYN birds were at the similar levels of BMD but were lower than that of CONT birds (P < 0.05); while there were no treatment effects on the populations of Lactobacilli (P > 0.05). In addition, SYN birds had greater villus height compared with both CONT and BMD birds (P < 0.05). These findings suggest that the dietary synbiotic supplement has significant performance and welfare benefits, with the potential to be used as an alternative to antibiotics for poultry meat production, especially during hot seasons.
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Affiliation(s)
- Ahmed Mohammed
- Faculty of Veterinary Medicine, Department of Animal and Poultry Behavior and Management, Assiut University, Assiut, Egypt
| | - Jiaying Hu
- Department of Animal Sciences, Purdue University, West Lafayette, IN, United States of America
| | - Raj Murugesan
- BIOMIN America, Inc., Overland Park, KS, United States of America
| | - Heng-Wei Cheng
- USDA Agricultural Research Service, West Lafayette, IN, United States of America
- * E-mail:
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Xiao G, Zheng L, Yan X, Gong L, Yang Y, Qi Q, Zhang X, Zhang H. Effects of Dietary Essential Oils Supplementation on Egg Quality, Biochemical Parameters, and Gut Microbiota of Late-Laying Hens. Animals (Basel) 2022; 12:ani12192561. [PMID: 36230302 PMCID: PMC9558990 DOI: 10.3390/ani12192561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/19/2022] [Accepted: 09/21/2022] [Indexed: 11/16/2022] Open
Abstract
The objective of this study was to explore the effects of adding essential oils (EO) to diets on egg quality, biochemical parameters and intestinal flora of late laying hens. The number of 252 Dawu Golden Phoenix laying hens (55 weeks old) were randomly sorted into two groups: the control group (CG) fed a basal diet and the EO group fed a basal diet with 300 mg/kg of essential oils. The average egg weight, feed-to-egg ratio, and egg production rate were determined every week. The trial started at week 55 and lasted for 8 weeks. During the experiment’s last week, 36 eggs out of each group were chosen at random to test. In our study, dietary supplementation with EO considerably decreased the egg breaking rate (p = 0.01) and increased the shell-breaking strength (p = 0.04). The treatment group’s alanine aminotransferase (ALT) levels were considerably lower than those of the control group (p = 0.03). The EO group had substantially higher total antioxidant capacity (T-AOC) and total superoxide dismutase (T-SOD) (p = 0.04 and p =0.03, respectively). However, there were no differences in alpha diversity indicators between the two groups. It is worth noting that Firmicutes were increased considerably (p < 0.05), while Spirochaetota and Proteobacteria were significantly reduced in the EO group. At genus levels, the EO supplementation increased the relative abundance of Intestinimonas (p < 0.05) and Megamonas (p < 0.01). In conclusion, a dietary supplementation of 300 mg/kg EO can improve the production performance of laying hens and the egg quality. It can also regulate the abundance of cecal flora and serum biochemical indicators.
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Affiliation(s)
- Gengsheng Xiao
- School of Life Science and Engineering, Foshan University, Foshan 528000, China
| | - Liwei Zheng
- Guangdong Guangken Animal Husbandry Engineering Research Institute, Guangzhou 510000, China
| | - Xia Yan
- Laboratory of Livestock and Poultry Breeding, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510000, China
| | - Li Gong
- School of Life Science and Engineering, Foshan University, Foshan 528000, China
| | - Yang Yang
- School of Life Science and Engineering, Foshan University, Foshan 528000, China
| | - Qien Qi
- School of Life Science and Engineering, Foshan University, Foshan 528000, China
| | - Xiangbin Zhang
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China
- Correspondence: (X.Z.); (H.Z.)
| | - Huihua Zhang
- School of Life Science and Engineering, Foshan University, Foshan 528000, China
- Correspondence: (X.Z.); (H.Z.)
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Carvalho CL, Andretta I, Galli GM, Martins GB, Camargo NDOT, Stefanello TB, Melchior R, da Silva MK. Dietary supplementation with β-mannanase and probiotics as a strategy to improve laying hen's welfare. Front Vet Sci 2022; 9:985947. [PMID: 36204293 PMCID: PMC9530350 DOI: 10.3389/fvets.2022.985947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 09/06/2022] [Indexed: 12/05/2022] Open
Abstract
A trend toward animal welfare improvement is observed in animal production, in addition to restrictions imposed on the use of antimicrobials. This study's objective was to evaluate whether β-mannanase and probiotic supplementation can change hen's behavior. Light weight laying hens (36 weeks old) were housed in cages randomly allocated to one of four different treatments: control group, fed non-supplemented diets; diets supplemented with 300 g/ton of β-mannanase; diets supplemented with 50 g/ton of probiotic; or diets containing both 300 g/ton of β-mannanase and 50 g/ton of probiotic. The behavior of 24 birds was recorded for a week using video cameras. The frequency and time of main behaviors (eating, walking, standing, sitting, drinking, and exploring) were analyzed in three periods per day (from 09:00 to 09:15; from 01:00 to 01:15, and from 04:00 to 04:15), as well as the time of other behaviors (leg-stretching and wings, scratching, wing-flapping, aggressive and non-aggressive pecks). Frequency and lesion scores were also analyzed using a visual score of three body regions: neck, tail, and cloaca; as well as comb injuries. β-mannanase was able to increase the frequency of feeding behavior by 49% (P < 0.05) and hens also spend 20% (P < 0.05) more time in this behavior compared to the control treatment. The use of probiotics also enhanced by 39% (P < 0.05) the frequency and 19% the time (P < 0.05) and the supplementation with combined additives was able to increase by 29% (P < 0.05) the frequency and 25% (P < 0.05) the time in feeding behavior. β-mannanase and probiotics also increased the frequency and time spent exploring behavior (P < 0.05) and promoted a higher frequency in standing behavior (P < 0.05) and decreased the time spent on sitting behaviors (P < 0.05). The combined additives showed less frequency and time in sitting behaviors (P < 0.05), while increased wing-flapping behavior (P < 0.05). All the treatments were able to reduce pecking (P < 0.05). Therefore, the addition of β-mannanase and probiotics to laying hen diets is an effective strategy to improve bird welfare.
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Affiliation(s)
- Camila Lopes Carvalho
- Department of Animal Science, Faculdade de Agronomia, Universidade Federal do Rio Grande do sul, Porto Alegre, Brazil
| | - Ines Andretta
- Department of Animal Science, Faculdade de Agronomia, Universidade Federal do Rio Grande do sul, Porto Alegre, Brazil
- *Correspondence: Ines Andretta
| | - Gabriela Miotto Galli
- Department of Animal Science, Faculdade de Agronomia, Universidade Federal do Rio Grande do sul, Porto Alegre, Brazil
| | - Gabriel Bueno Martins
- Department of Animal Science, Faculdade de Agronomia, Universidade Federal do Rio Grande do sul, Porto Alegre, Brazil
| | | | - Thais Bastos Stefanello
- Department of Animal Science, Faculdade de Agronomia, Universidade Federal do Rio Grande do sul, Porto Alegre, Brazil
| | - Raquel Melchior
- Department of Animal Science, Faculdade de Agronomia, Universidade Federal do Rio Grande do sul, Porto Alegre, Brazil
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Ahmad R, Yu YH, Hsiao FSH, Su CH, Liu HC, Tobin I, Zhang G, Cheng YH. Influence of Heat Stress on Poultry Growth Performance, Intestinal Inflammation, and Immune Function and Potential Mitigation by Probiotics. Animals (Basel) 2022; 12:ani12172297. [PMID: 36078017 PMCID: PMC9454943 DOI: 10.3390/ani12172297] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/28/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary The poultry industry sustains severe economic loss under heat stress conditions. Heat stress adversely affects the productivity, physiological status, and immunity of birds. To date, several mitigation measures have been adopted to minimize the negative effects of heat stress in poultry. Nutritional strategies have been explored as a promising approach to mitigate heat stress-associated deleterious impacts. Of these, probiotic feeding has a strong potential as a nutritional strategy, and this approach warrants further investigation to improve thermotolerance in poultry. Abstract Heat stress has emerged as a serious threat to the global poultry industry due to climate change. Heat stress can negatively impact the growth, gut health, immune function, and production and reproductive performances of poultry. Different strategies have been explored to mitigate heat stress in poultry; however, only a few have shown potential. Probiotics are gaining the attention of poultry nutritionists, as they are capable of improving the physiology, gut health, and immune system of poultry under heat stress. Therefore, application of probiotics along with proper management are considered to potentially help negate some of the negative impacts of heat stress on poultry. This review presents scientific insight into the impact of heat stress on poultry health and growth performance as well as the application of probiotics as a promising approach to alleviate the negative effects of heat stress in poultry.
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Affiliation(s)
- Rafiq Ahmad
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047, Taiwan
| | - Yu-Hsiang Yu
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047, Taiwan
| | - Felix Shih-Hsiang Hsiao
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047, Taiwan
| | - Chin-Hui Su
- Ilan Branch, Livestock Research Institute, Yilan 268020, Taiwan
| | - Hsiu-Chou Liu
- Ilan Branch, Livestock Research Institute, Yilan 268020, Taiwan
| | - Isabel Tobin
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Guolong Zhang
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USA
- Correspondence: (G.Z.); (Y.-H.C.)
| | - Yeong-Hsiang Cheng
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047, Taiwan
- Correspondence: (G.Z.); (Y.-H.C.)
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Chen Q, Wang Z, Shao D, Shi S. Effects of heat stress on the intestinal microorganisms in poultry and its nutritional regulations: a review. WORLD POULTRY SCI J 2022. [DOI: 10.1080/00439339.2022.2106344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Qingyi Chen
- Poultry Institute, Chinese Academy of Agricultural Science, Yangzhou, China
- Huanan Agricultural University, Guangzhou, China
| | - Zhenxin Wang
- Poultry Institute, Chinese Academy of Agricultural Science, Yangzhou, China
| | - Dan Shao
- Poultry Institute, Chinese Academy of Agricultural Science, Yangzhou, China
| | - Shourong Shi
- Poultry Institute, Chinese Academy of Agricultural Science, Yangzhou, China
- Center of Effective Evaluation of Feed and Feed Additive (Poultry Institute) Ministry of Agriculture, Yangzhou, China
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Heat stress in poultry with particular reference to the role of probiotics in its amelioration: An updated review. J Therm Biol 2022; 108:103302. [DOI: 10.1016/j.jtherbio.2022.103302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 07/23/2022] [Accepted: 07/27/2022] [Indexed: 12/14/2022]
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Kroscher KA, Fausnacht DW, McMillan RP, El-Kadi SW, Wall EH, Bravo DM, Rhoads RP. Supplementation with artificial sweetener and capsaicin alters metabolic flexibility and performance in heat-stressed and feed-restricted pigs. J Anim Sci 2022; 100:6652329. [PMID: 35908791 PMCID: PMC9339275 DOI: 10.1093/jas/skac195] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/24/2022] [Indexed: 12/17/2022] Open
Abstract
Substantial economic losses in animal agriculture result from animals experiencing heat stress (HS). Pigs are especially susceptible to HS, resulting in reductions in growth, altered body composition, and compromised substrate metabolism. In this study, an artificial high-intensity sweetener and capsaicin (CAPS-SUC; Pancosma, Switzerland) were supplemented in combination to mitigate the adverse effects of HS on pig performance. Forty cross-bred barrows (16.2 ± 6 kg) were assigned to one of five treatments: thermal neutral controls (TN) (22 ± 1.2 °C; 38%-73% relative humidity) with ad libitum feed, HS conditions with ad libitum feed with (HS+) or without (HS-) supplementation, and pair-fed to HS with (PF+) or without supplementation (PF-). Pigs in heat-stressed treatments were exposed to a cyclical environmental temperature of 12 h at 35 ± 1.2 °C with 27%-45% relative humidity and 12 h at 30 ± 1.1 °C with 24%-35% relative humidity for 21 d. Supplementation (0.1 g/kg feed) began 7 d before and persisted through the duration of environmental or dietary treatments (HS/PF), which lasted for 21 d. Rectal temperatures and respiration rates (RR; breaths/minute) were recorded thrice daily, and feed intake (FI) was recorded daily. Before the start and at the termination of environmental treatments (HS/PF), a muscle biopsy of the longissimus dorsi was taken for metabolic analyses. Blood samples were collected weekly, and animals were weighed every 3 d during treatment. Core temperature (TN 39.2 ± 0.02 °C, HS- 39.6 ± 0.02 °C, and HS+ 39.6 ± 0.02 °C, P < 0.001) and RR (P < 0.001) were increased in both HS- and HS+ groups, but no difference was detected between HS- and HS+. PF- pigs exhibited reduced core temperature (39.1 ± 0.02 °C, P < 0.001), which was restored in PF+ pigs (39.3 ± 0.02 °C) to match TN. Weight gain and feed efficiency were reduced in PF- pigs (P < 0.05) but not in the PF+ or the HS- or HS+ groups. Metabolic flexibility was decreased in the HS- group (-48.4%, P < 0.05) but maintained in the HS+ group. CAPS-SUC did not influence core temperature or weight gain in HS pigs but did restore core temperature, weight gain, and feed efficiency in supplemented PF pigs. In addition, supplementation restored metabolic flexibility during HS and improved weight gain and feed efficiency during PF, highlighting CAPS-SUC's therapeutic metabolic effects.
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Affiliation(s)
- Kellie A Kroscher
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA 24061, USA
| | - Dane W Fausnacht
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA 24061, USA
| | - Ryan P McMillan
- The Metabolism Core, Virginia Tech, Blacksburg, VA 24061, USA
| | - Samer W El-Kadi
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA 24061, USA
| | | | | | - Robert P Rhoads
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA 24061, USA
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Selim S, Abdel-Megeid NS, Khalifa HK, Fakiha KG, Majrashi KA, Hussein E. Efficacy of Various Feed Additives on Performance, Nutrient Digestibility, Bone Quality, Blood Constituents, and Phosphorus Absorption and Utilization of Broiler Chickens Fed Low Phosphorus Diet. Animals (Basel) 2022; 12:ani12141742. [PMID: 35883289 PMCID: PMC9312087 DOI: 10.3390/ani12141742] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/30/2022] [Accepted: 07/04/2022] [Indexed: 11/16/2022] Open
Abstract
The present trial was designed to assess the effect of phytase, multi-strain probiotic, Saccharomyces cerevisiae, and fumaric acid on performance, nutrient digestibility, bone physical parameters and mineralization, blood constituents, bone and gut histomorphology, and duodenal phosphorus transporter genes of broiler chickens fed a decreased non-phytate phosphorus (nPP) diet for 5 weeks. A total of 480 broiler chickens were allotted to six dietary groups and eight replicates each: (1) positive control diet with recommended levels of nPP (PC; 0.48, 0.44, and 0.41% in the three feeding phases); (2) negative control diet with a decreased dietary nPP (NC; 0.28, 0.24, and 0.21% in the three feeding phases); (3) NC + 600 FTU/kg phytase (PHY); (4) NC + 0.05% multi-strain probiotic (PRO); (5) NC + 0.2% Saccharomyces cerevisiae (SC); and (6) NC + 0.2% fumaric acid. Growth performance data were recorded weekly, and blood sampling was performed at days 21 and 35 of age. Bone quality traits, gut and tibia histology, nutrient digestibility, and intestinal gene expression analyses were conducted at the end of the trial (35 days of age). Final body weight and total gain at day 35 of age of the broiler chickens fed with the PHY, PRO, and SC diets were greater (p < 0.01) than in NC, where broilers fed with the PRO and PHY diets had higher values and were similar to that of PC. There was a non-significant variation in the cumulative feed intake among the treatment groups. The PHY and PRO groups had better FCR than the PC group (p < 0.05), and FA and SC had an FCR equivalent to that of PC. The PHY and PRO broilers had greater dressing % than the NC group (p < 0.05) and even better than PC. The PHY, PRO, SC, and FA broilers had higher relative weights of spleen and bursa of Fabricius (p < 0.01) than NC. In comparison to NC, the PHY, PRO, and SC groups improved (p < 0.05) CP, CF, Ca, and P digestibility. Greater tibia breaking strength of the low nPP-supplemented groups was shown to be associated with higher tibia ash, Ca, and P concentrations (p < 0.01) and increased (p < 0.001) tibia cortical area thickness. At days 21 and 35 of age, the dietary supplements to low nPP diets reduced (p < 0.05) serum total cholesterol, triglyceride, triiodothyronine, thyroxine, glucose, and alkaline phosphatase levels, while serum Ca and P concentrations were improved (p < 0.05) compared to NC. All supplements led to enhancement (p < 0.01) in villi height and width and villi absorptive surface area when compared with NC and were even comparable to that of PC. The mRNA expression of NaP-IIb was up-regulated (p < 0.001) in the duodenum of PRO and FA broilers at day 35 of age compared with NC, and their expression levels were similar to that of PC, indicating greater P availability. It is concluded that dietary supplementation of PHY, PRO, SC, and FA to a low nPP diet was advantageous and mitigated the negative impacts of P reduction on the growth performance, health, nutrient digestibility, and bone quality of broilers.
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Affiliation(s)
- Shaimaa Selim
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, University of Menoufia, Shibin El-Kom 32514, Egypt
- Correspondence:
| | - Nazema S. Abdel-Megeid
- Department of Cytology and Histology, Faculty of Veterinary Medicine, University of Sadat City, Sadat City 32897, Egypt;
| | - Hanem K. Khalifa
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, University of Sadat City, Sadat City 32897, Egypt;
| | - Khloud G. Fakiha
- Department of Biology, College of Science, University of Jeddah, Jeddah 21493, Saudi Arabia;
| | - Kamlah A. Majrashi
- Biological Sciences Department, College of Science and Arts, King Abdulaziz University, Rabigh 21911, Saudi Arabia;
| | - Eman Hussein
- Department of Poultry and Fish Production, Faculty of Agriculture, University of Menoufia, Shibin El-Kom 32514, Egypt;
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Güths MF, Siqueira HA, Montes JH, Moreira F, Rizzoto G, Peripolli V, Tutida YH, Lucia T, Irgang R, Kich JD, Bianchi I. Removal or substitution of in feed antimicrobials in swine production. Prev Vet Med 2022; 205:105696. [PMID: 35753200 DOI: 10.1016/j.prevetmed.2022.105696] [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: 07/10/2021] [Revised: 06/09/2022] [Accepted: 06/12/2022] [Indexed: 10/18/2022]
Abstract
Antimicrobial substitutes are being used in pig production systems, to maintain the health of the animals without compromising their performance. The aim of this study is to evaluate the impact of either the removal of in feed antimicrobials or their substitution for feed additives, at the nursery and growing/finishing stages. At weaning, 1091 piglets were sexed, vaccinated, homogenized by weight and allocated to six treatments during the nursery stage (26-63 d): T1- feed with no antimicrobials nor additives; T2 - feed with antimicrobials; T3 - feed with prebiotic; T4 - feed with probiotic; T5 - feed with essential oils; T6 - feed with organic acids. The same treatments were applied to 840 pigs during the growing/finishing stages (64-167 d). There was no effect of the treatments on feed conversion at the nursery (P = 0.222) and the growing/finishing (P = 0.809) stages. The average daily gain did not differ across treatments in the nursery (P = 0.342) and in growing/finishing (P = 0.050). The cost of the interventions with injectable drugs was not different between the treatments neither at the nursery (P = 0.990) nor at the growing/finishing (P = 0.310). However, the pneumonia and pleurisy index for all treatments was equal or above 1.0, which indicates a respiratory challenge. There was an increase in the cost with antimicrobials or additives per kg of feed produced, which impacts the cost per kg of pig produced. In conclusion, the removal of antimicrobials in pig diets is financially feasible and their substitution by additives did not impact growing performance.
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Affiliation(s)
- Marcelo Felipe Güths
- Curso de Pós-Graduação em Produção e Sanidade Animal (PPGPSA), Instituto Federal Catarinense, 89245-000 Araquari, Santa Catarina, Brazil
| | - Helloa Alaide Siqueira
- Instituto Federal Catarinense, Campus Araquari, 89245-000 Araquari, Santa Catarina, Brazil
| | - Julia Helena Montes
- Instituto Federal Catarinense, Campus Araquari, 89245-000 Araquari, Santa Catarina, Brazil
| | - Fabiana Moreira
- Curso de Pós-Graduação em Produção e Sanidade Animal (PPGPSA), Instituto Federal Catarinense, 89245-000 Araquari, Santa Catarina, Brazil; Instituto Federal Catarinense, Campus Araquari, 89245-000 Araquari, Santa Catarina, Brazil
| | - Guilherme Rizzoto
- Faculdade de Medicina Veterinária e Zootecnia, Campus de Botucatu, 18618-681, Botucatu, São Paulo, Brazil
| | - Vanessa Peripolli
- Curso de Pós-Graduação em Produção e Sanidade Animal (PPGPSA), Instituto Federal Catarinense, 89245-000 Araquari, Santa Catarina, Brazil; Instituto Federal Catarinense, Campus Araquari, 89245-000 Araquari, Santa Catarina, Brazil.
| | - Yuso Henrique Tutida
- Curso de Pós-Graduação em Produção e Sanidade Animal (PPGPSA), Instituto Federal Catarinense, 89245-000 Araquari, Santa Catarina, Brazil
| | - Thomaz Lucia
- Faculdade de Veterinária, Universidade Federal de Pelotas, Campus Capão do Leão, 96010-900 Pelotas, Rio Grande do Sul, Brazil
| | - Renato Irgang
- Universidade Federal de Santa Catarina, 88034-000 Florianópolis, Santa Catarina, Brazil
| | - Jalusa Deon Kich
- Curso de Pós-Graduação em Produção e Sanidade Animal (PPGPSA), Instituto Federal Catarinense, 89245-000 Araquari, Santa Catarina, Brazil; Embrapa Suínos e Aves, 89715-899 Concórdia, Santa Catarina, Brazil
| | - I Bianchi
- Curso de Pós-Graduação em Produção e Sanidade Animal (PPGPSA), Instituto Federal Catarinense, 89245-000 Araquari, Santa Catarina, Brazil; Instituto Federal Catarinense, Campus Araquari, 89245-000 Araquari, Santa Catarina, Brazil
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Ghareeb AFA, Schneiders GH, Foutz JC, Milfort MC, Fuller AL, Yuan J, Rekaya R, Aggrey SE. Heat Stress Alters the Effect of Eimeria maxima Infection on Ileal Amino Acids Digestibility and Transporters Expression in Meat-Type Chickens. Animals (Basel) 2022; 12:ani12121554. [PMID: 35739890 PMCID: PMC9219439 DOI: 10.3390/ani12121554] [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: 04/28/2022] [Revised: 06/03/2022] [Accepted: 06/07/2022] [Indexed: 11/30/2022] Open
Abstract
Simple Summary Heat stress (HS) and Eimeria (E.) maxima infection are the most common physical and pathological stressors in chicken houses, and both affect intestinal digestibility and absorption leading to reduction in growth, morbidity, and mortality, causing massive economic losses. This study identifies the impact of each stressor and their combined effects on apparent amino acid digestibility and molecular transporters expression in the ileum of broiler chicken. Heat-stressed chickens showed no change in amino acids digestibility, despite the reduction in feed intake. Combining HS and E. maxima infection modulated the reduction in amino acids digestibility observed in the infected chickens. The expression of the ileal amino acid transporters was severely impacted by E. maxima infection but not by HS. Interestingly, the infected group reared under HS exhibited significantly higher expression levels in all the enterocytic apical and about half of the basolateral amino acid transporters than the infected birds raised in thermoneutral environment. Thus, HS putatively curtailed the maldigestion effects of E. maxima. Abstract Eimeria (E.) maxima invades the midgut of chickens and destroys the intestinal mucosa, impacting nutrient digestibility and absorption. Heat stress (HS) commonly affects the broiler chicken and contributes to inflammation and oxidative stress. We examined the independent and combined effects of HS and E. maxima infection on apparent amino acid ileal digestibility (AID) and mRNA expression of amino acid transporters in broiler chickens (Ross 708). There were four treatment groups: thermoneutral-control (TNc) and infected (TNi), heat-stress control (HSc) and infected (HSi), six replicates of 10 birds/treatment. Ileal content and tissue were sampled at 6 d post infection to determine AID and transporters expression. Surprisingly, the HSi chickens exposed to two critical stressors exhibited normal AID. Only the TNi group displayed reduction in AID. Using TNc as control, the HSc group showed upregulated CAT1, LAT4, TAT1, SNAT1, and SNAT7. The HSi group showed upregulated CAT1 and LAT1, and downregulated b0,+AT, rBAT, SNAT1, and SNAT2. The TNi group showed upregulated CAT1, LAT1, and SNAT1 and downregulated B0AT1, b0,+AT, rBAT, LAT4, and TAT1. The expression of all enterocytic-apical and about half of the basolateral transporters was higher in the HSi group than in the TNi group, indicating that HS can putatively alleviate the E. maxima adverse effect on ileal digestion and absorption.
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Affiliation(s)
- Ahmed F. A. Ghareeb
- Department of Poultry Science, University of Georgia, 110 Cedar St, Athens, GA 30602, USA; (A.F.A.G.); (G.H.S.); (J.C.F.); (M.C.M.); (A.L.F.)
| | - Gustavo H. Schneiders
- Department of Poultry Science, University of Georgia, 110 Cedar St, Athens, GA 30602, USA; (A.F.A.G.); (G.H.S.); (J.C.F.); (M.C.M.); (A.L.F.)
- Merck Animal Health, 2 Giralda Farms, Madison, NJ 07940, USA
| | - James C. Foutz
- Department of Poultry Science, University of Georgia, 110 Cedar St, Athens, GA 30602, USA; (A.F.A.G.); (G.H.S.); (J.C.F.); (M.C.M.); (A.L.F.)
- Boehringer Ingelheim Animal Health (BIAH), 1110 Airport Pkwy, Gainesville, GA 30501, USA
| | - Marie C. Milfort
- Department of Poultry Science, University of Georgia, 110 Cedar St, Athens, GA 30602, USA; (A.F.A.G.); (G.H.S.); (J.C.F.); (M.C.M.); (A.L.F.)
| | - Alberta L. Fuller
- Department of Poultry Science, University of Georgia, 110 Cedar St, Athens, GA 30602, USA; (A.F.A.G.); (G.H.S.); (J.C.F.); (M.C.M.); (A.L.F.)
| | - Jianmin Yuan
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
| | - Romdhane Rekaya
- Department of Animal and Dairy Science, University of Georgia, 425 River Rd, Athens, GA 30602, USA;
| | - Samuel E. Aggrey
- Department of Poultry Science, University of Georgia, 110 Cedar St, Athens, GA 30602, USA; (A.F.A.G.); (G.H.S.); (J.C.F.); (M.C.M.); (A.L.F.)
- Correspondence: ; Tel.: +1-706-542-1351
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Fructooligosaccharide Supplementation Boosts Growth Performance, Antioxidant Status, and Cecal Microbiota Differently in Two Rabbit Breeds. Animals (Basel) 2022; 12:ani12121528. [PMID: 35739865 PMCID: PMC9219445 DOI: 10.3390/ani12121528] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/02/2022] [Accepted: 06/09/2022] [Indexed: 11/28/2022] Open
Abstract
Simple Summary Rapidly rising incomes are dependent on animal protein production and the worldwide demand for livestock. It is expected that moving towards more intensive production systems to sustain this increased demand will depend on growth promoters. Some growth promoters, such as prebiotics, might be considered alternative non-antibiotic feed supplementation as they enhance performance without any side effects on the consumer’s health. The present study inspected the influence of supplementation of β-fructan® (a commercial fructooligosaccharide; FOS) in the drinking water of growing rabbits on growth performance, carcass traits, hematological and biochemical indices, antioxidant status, and cecal microbiota of the NZW- and APRI-line rabbits (Animal Production Research Institute Line). FOS supplementation in rabbits enhanced growth carcass characteristics, significantly improving hematological parameters and antioxidant status, and minimized pathogenic Escherichia coli bacteria (from 3.45 in control groups to 2.89 and 2.24 (Log10 CFU g−1) in 0.5 mL and 1 mL FOS-treated rabbits, respectively. Abstract The present study examined the effects of fructooligosaccharide (FOS) supplementation in drinking water on the growth performance, carcass characteristics, hematological and biochemical parameters, antioxidant status, and cecal microbiota of New Zealand White (NZW) and APRI rabbits. A total of 180 male NZW and APRI rabbits (aged five weeks; average live body weight 700 ± 39 g) were divided into six groups (30 rabbits/group; 5 replicates/group) in a two × three factorial arrangement. Rabbits of each breed were randomly assigned to one of three treatments of FOS (control; 0.00, FOS-0.5, and FOS-1.0). Results showed that rabbits’ final body weight, FBWG, and carcass traits were considerably enhanced compared to those in the control group. The interaction effect of the supplement with the rabbit breed increased the growth, carcass traits, and hematobiochemical and antioxidant parameters with increasing FOS levels. In the cecum of both rabbit breeds, the total bacterial count and Escherichiacoli population were considerably low, with a substantial increase in the number of Lactobacilli supplemented by FOS. In conclusion, FOS supplementation enhanced growth and carcass traits by improving the hematobiochemical parameters and antioxidant status and reducing cecal pathogenic bacteria in both breeds.
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Kinati C, Ameha N, Girma M, Nurfeta A. Effective microorganisms, turmeric (Curcuma longa), and their combination on performance and economic benefits in broilers. Heliyon 2022; 8:e09568. [PMID: 35677400 PMCID: PMC9168503 DOI: 10.1016/j.heliyon.2022.e09568] [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: 01/15/2022] [Revised: 03/05/2022] [Accepted: 05/25/2022] [Indexed: 11/15/2022] Open
Abstract
The effects of effective microorganisms (EM), turmeric powder (TP), and their combination (EM-TP) on broiler performance, carcass characteristics, and economic benefit were studied in broilers fed a concentrate-based diet. A total of 192 chicks were assigned to four dietary treatments having CTL = control, EM = CTL+1 ml/lit effective microorganisms, TP = CTL+1%TP, EM-TP = CTL+0.5 ml/litEM+0.5%TP following a completely randomized design of 3 replications for each treatment. Concentrate was fed ad-libitum to all treatment groups. The feeding experiment lasted 42 days, 21 days for the starter and finisher phases each. The highest (P < 0.001) feed intake was observed when EM was fed as the sole additive and EM-TP during the starter period while the lowest (P > 0.05) value was for TP alone. There was no significant difference in feed intake during the finisher and the entire experimental period. The average daily gain for EM was higher (P < 0.05) than that of CTL and TP during the starter phase. However, during the finisher phase the average daily gain for EM-TP was greater (P < 0.05) than for TP and CTL. The greatest (P < 0.05) average daily gain was for EM-TP and EM during the entire period. The feed conversion ratio, performance index, mortality, and carcass characteristics were similar (P > 0.05) among treatments. The highest (P < 0.05) abdominal fat was observed in the control group. The finding indicates that a greater net return was earned from EM-TP while a lower net return was observed for TP. In conclusion, supplementation of EM (1 ml/lit) and the combination (EM-TP) at 0.5% each are better in terms of average body weight gain, the net return, and in decreasing abdominal fat.
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Jahan AA, González Ortiz G, Moss AF, Bhuiyan MM, Morgan NK. Role of supplemental oligosaccharides in poultry diets. WORLD POULTRY SCI J 2022. [DOI: 10.1080/00439339.2022.2067805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- A. A. Jahan
- Department of Animal Science, University of New England, School of Environmental and Rural Science, Armidale, NSW, Australia
| | | | - A. F. Moss
- Department of Animal Science, University of New England, School of Environmental and Rural Science, Armidale, NSW, Australia
| | - M. M. Bhuiyan
- Department of Animal Science, University of New England, School of Environmental and Rural Science, Armidale, NSW, Australia
| | - N. K. Morgan
- Department of Animal Science, University of New England, School of Environmental and Rural Science, Armidale, NSW, Australia
- Department of Food Science and Agriculture, Curtin University, School of Molecular and Life Sciences, Bentley, Western Australia, Australia
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Sarsour A, Persia M. Effects of Sulfur amino acid supplementation on Broiler Chickens Exposed to Acute and Chronic Cyclic Heat Stress. Poult Sci 2022; 101:101952. [PMID: 35688032 PMCID: PMC9189208 DOI: 10.1016/j.psj.2022.101952] [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: 01/14/2022] [Revised: 04/15/2022] [Accepted: 04/25/2022] [Indexed: 11/15/2022] Open
Abstract
Chronic heat stress can result in oxidative damage from increased reactive oxygen species. One proposed method to alleviate the chronic effects of HS is the supplementation of sulfur amino acids (SAA) which can be metabolized to glutathione, an important antioxidant. Therefore, the objective of this experiment was to determine the effects of dietary SAA content on broiler chickens exposed to HS from 28 to 35 d on broiler performance, body temperature, intestinal permeability, and oxidative status. Four experimental treatments were arranged as a 2 × 2 factorial consisting of HS (6 h at 33.3°C followed by 18 h at 27.8°C from 28 to 35 d of age) and Thermoneutral (TN- 22.2°C continuously from 28 to 35 d) and 2 dietary concentrations of SAA formulated at 100% (0.95, 0.87, and 0.80% for starter, grower, and finisher diets) or 130% SAA (1.24, 1.13, and 1.04% for starter, grower, and finisher diets). A total of 648-day-old, male Ross 708 chicks were placed in 36 pens with 18 chicks/pen and 9 replicates per treatment. Data were analyzed as a 2 × 2 factorial in JMP 14 (P ≤ 0.05). No interaction effects were observed on broiler live performance (P > 0.05). As expected, HS reduced BWG by 92 g and increased FCR by 11 points from 28 to 35 d of age compared to TN, respectively (P ≤ 0.05). The supplementation of SAA had no effect on live performance (P > 0.05). Cloacal temperatures were increased by 1.7, 1.4, and 1.2°C with HS at 28, 31, and 35 d compared to TN, respectively (P ≤ 0.05) and dietary SAA did not alter cloacal temperatures. At 28 d of age, supplementation of SAA to birds exposed to HS interacted as serum FITC-dextran (an indicator of intestinal permeability) was reduced to that of the TN group (P ≤ 0.05). The interaction was lost at 31 d, but HS still increased intestinal permeability (P ≤ 0.05). By 35 d, broilers were able to adapt to the HS conditions and intestinal permeability was unaffected (P > 0.05). Potential oxidative damage was reduced by increased SAA supplementation as indicated by an improvement in the reduced glutathione to oxidized glutathione ratio of 5 and 45 % at 28 (P = 0.08) and 35 d (P ≤ 0.05). These data suggest that intestinal permeability is compromised initially and to at least three d of heat exposure before the bird can adjust. However, oxidative damage in the liver of broilers exposed to HS is more chronic, building over the entire 7 d HS period and increased dietary SAA might have some protective effects on both broiler intestinal permeability and oxidative stress responses to HS.
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Liu Z, Chen Y, Xue J, Huang X, Chen Z, Wang Q, Wang C. Effects of ambient temperature on the growth performance, fat deposition, and intestinal morphology of geese from 28 to 49 days of age. Poult Sci 2022; 101:101814. [PMID: 35358928 PMCID: PMC8966147 DOI: 10.1016/j.psj.2022.101814] [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: 12/05/2021] [Revised: 02/11/2022] [Accepted: 02/22/2022] [Indexed: 11/12/2022] Open
Abstract
This study was conducted to investigate the effects of ambient temperature on the growth performance, fat deposition, and intestinal morphology of geese from 28 to 49 d of age. A total of 120 twenty-eight-day-old geese were randomly allotted to 5 environmentally controlled chambers with ambient temperatures set at 18, 21, 24, 27, and 30°C from 28 to 49 d of age, respectively. The feed intake, 49 d body weight, and weight gain decreased linearly or quadratically (P < 0.05) as ambient temperature increased and declined to a minimum when the temperature increased to 30°C. The feed/gain showed a linear or quadratic (P < 0.05) increasing response to increasing temperature. According to broken-line regression, the upper critical levels of ambient temperature from 28 to 49 d of age for weight gain and feed intake were 25.19 and 23.97°C, respectively. As ambient temperature increased from 18 to 30°C, the abdominal fat weight, abdominal fat rate, and subcutaneous fat thickness decreased linearly (P < 0.05) and were accompanied by linearly increasing liver fat content (P < 0.05), but the ambient temperature had no effect on intermuscular fat width or breast muscle fat content (P > 0.05). There were no differences in jejunal, ileal, or cecal morphology for geese raised at 18, 21, 24, 27, and 30°C (P > 0.05). The duodenal villus height showed a linear decreasing response to increasing ambient temperature, but the ambient temperature had no effect on crypt depth, villus width, muscularis thickness, or villus height/crypt depth of the duodenum (P > 0.05). These results indicate that high ambient temperature decreased growth performance and fat deposition and impaired duodenal morphology of geese. Under our experimental conditions, we recommend that the upper critical ambient temperature for geese from 28 to 49 d of age be 25.19°C.
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Akter S, Liu Y, Cheng B, Classen J, Oviedo E, Harris D, Wang-Li L. Impacts of Air Velocity Treatments under Summer Conditions: Part II—Heavy Broiler’s Behavioral Response. Animals (Basel) 2022; 12:ani12091050. [PMID: 35565477 PMCID: PMC9103274 DOI: 10.3390/ani12091050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/14/2022] [Accepted: 04/15/2022] [Indexed: 02/04/2023] Open
Abstract
Broiler chickens exposed to heat stress adapt to various behavioral changes to regulate their comfortable body temperature, which is critical to ensure their performance and welfare. Hence, assessing various behavioral responses in birds when they are subjected to environmental changes can be essential for assessing their welfare under heat-stressed conditions. This study aimed to evaluate the effect of two air velocity (AV) treatments on heavy broilers’ behavioral changes from 43 to 54 days under summer conditions. Two AV treatments (high and low) were applied in six poultry growth chambers with three chambers per treatment and 44 COBB broilers per chamber from 28 to 61 days in the summer of 2019. Three video cameras placed inside each chamber (2.44 m × 2.44 m × 2.44 m in dimension) were used to record the behavior of different undisturbed birds, such as feeding, drinking, resting, standing, walking, panting, etc. The results indicate that the number of chickens feeding, drinking, standing, walking, sitting, wing flapping, and leg stretching changed under AV treatments. High AV increased the number of chickens feeding, standing, and walking. Moreover, a two-way interaction with age and the time of day can affect drinking and panting. This study provides insights into heavy broilers’ behavioral changes under heat-stressed conditions and AV treatments, which will help guide management practices to improve birds’ performance and welfare under commercial conditions in the future.
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Affiliation(s)
- Suraiya Akter
- Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC 27695, USA; (S.A.); (Y.L.); (B.C.); (J.C.)
| | - Yingying Liu
- Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC 27695, USA; (S.A.); (Y.L.); (B.C.); (J.C.)
- Department of Automation, College of Artificial Intelligence, Nanjing Agricultural University, Nanjing 210095, China
| | - Bin Cheng
- Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC 27695, USA; (S.A.); (Y.L.); (B.C.); (J.C.)
| | - John Classen
- Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC 27695, USA; (S.A.); (Y.L.); (B.C.); (J.C.)
| | - Edgar Oviedo
- Prestage Poultry Science Department, North Carolina State University, Raleigh, NC 27695, USA;
| | - Dan Harris
- Department of Statistics, North Carolina State University, Raleigh, NC 27695, USA;
| | - Lingjuan Wang-Li
- Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC 27695, USA; (S.A.); (Y.L.); (B.C.); (J.C.)
- Correspondence: ; Tel.: +1-919-515-6762
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Effects of dietary tryptophan supplementation on body temperature, hormone, and cytokine levels in broilers exposed to acute heat stress. Trop Anim Health Prod 2022; 54:164. [DOI: 10.1007/s11250-022-03161-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 04/07/2022] [Indexed: 11/26/2022]
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Wang L, Zhang Y, Guo X, Gong L, Dong B. Beneficial Alteration in Growth Performance, Immune Status, and Intestinal Microbiota by Supplementation of Activated Charcoal-Herb Extractum Complex in Broilers. Front Microbiol 2022; 13:856634. [PMID: 35495714 PMCID: PMC9051449 DOI: 10.3389/fmicb.2022.856634] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 03/21/2022] [Indexed: 12/11/2022] Open
Abstract
This study aimed to examine the effects of activated charcoal-herb extractum complex (CHC) on the growth performance of broilers, inflammatory status, microbiota, and their relationships. A total of 864 1-day-old Arbor Acres male broilers (41.83 ± 0.64 g) were distributed to eight dietary treatments with six replicates (18 birds per replicate), which were a corn-soybean meal-based diet (NCON); basal diets supplemented with 250, 500, 750, or 1,000 mg/kg CHC, and three positive controls; basal diets supplemented with 200 mg/kg antibacterial peptide (AMP), 200 mg/kg calsporin (Probio) or 500 mg/kg montmorillonite. The study period was 42 days including the starter (day 0-21) and grower (day 22-42) phases. Compared with the NCON group, CHC supplementation (optimal dose of 500 mg/kg) increased (p < 0.05) growth performance and tended to increase feed conversion rate in broilers. CHC (optimal dose of 500 mg/kg) decreased the level of the interleukin-1β (IL-1β) and interferon-γ (IFN-γ) in serum and improved the levels of immunoglobulins A (IgA) and immunoglobulins A (IgM) in serum, and secretory immunoglobulin A (SIgA) in the mucosa of duodenum and jejunum (p < 0.05). In the ileum, CHC supplementation decreased community abundance represented by lower Sobs, Chao 1, Ace, and Shannon compared with NCON (p < 0.05). At the phylum level, CHC supplementation increased the abundance of Firmicutes, while decreasing the abundance of Bacteroidetes in ileum and cecum (p < 0.05). At the genus level, compared with the NCON group, CHC markedly reduced (p < 0.05) the abundances of pathogenic bacteria Alistipes in the ileum, which were negatively associated with the levels of SIgA and IL-1β in ileum mucosa. In conclusion, CHC had beneficial effects on growth performance, immune status, and intestinal microbiota composition. CHC had dual functions of absorption like clays and antibacterial like antibacterial peptides.
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Affiliation(s)
| | | | | | | | - Bing Dong
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
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50
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Malila Y, Sanpinit P, Thongda W, Jandamook A, Srimarut Y, Phasuk Y, Kunhareang S. Influences of Thermal Stress During Three Weeks Before Market Age on Histology and Expression of Genes Associated With Adipose Infiltration and Inflammation in Commercial Broilers, Native Chickens, and Crossbreeds. Front Physiol 2022; 13:858735. [PMID: 35492598 PMCID: PMC9039046 DOI: 10.3389/fphys.2022.858735] [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: 01/20/2022] [Accepted: 03/15/2022] [Indexed: 11/13/2022] Open
Abstract
The objectives of this study were to examine the effects of cyclic thermal stress on histological characteristics of breast muscle and gene expression regarding adipose infiltration and inflammation in breast muscles collected from different breeds of chickens. The birds, from commercial broilers (CB, Ross 308, 3 weeks), native (NT, 100% Thai native Chee, 9 weeks), H75 (crossbred; 75% broiler and 25% NT, 5 weeks), and H50 (crossbred; 50% broiler and 50% NT, 7 weeks), were equally assigned into control or treatment groups. The control samples were reared under a constant temperature of 26 ± 1°C, while the treatment groups were exposed to 35 ± 1°C (6 h per day). After a 20-day thermal challenge, 12 male birds per treatment group were randomly collected for determination of live body weight, breast weight, numbers of growth-related myopathies, and breast meat chemical composition. Histological lesions were evaluated in the pectoralis major muscle immediately collected within 20 min postmortem based on hematoxylin and eosin staining. The results indicated that despite interaction between thermal stress and breed effects, thermal challenge significantly reduced feed intake, live body weight, and breast weight of the birds and increased moisture content in breast meat (p < 0.05). An interaction between the two main factors was found for protein content (p < 0.05) for which control CB showed less protein than the other groups. Heat stress decreased histological scores for adipose infiltration in CB (p < 0.05), but it did not significantly influence such scores in the other groups. CB received histological scores for adipose tissue at greater extent than those for the other groups. Differential absolute abundance of CD36, FABP4, LITAF, PDGFRA, PLIN1, PPARG, POSTN, SCD1, and TGFB1 in the muscle samples well-agreed with the trend of histological scores, suggesting potential involvement of dysregulated fibro-adipogenic progenitors together with imbalanced lipid storage and utilization in the breast muscle. The findings demonstrated that the cyclic thermal challenge restricted growth performance and breast mass of the birds, but such effects attenuated infiltration of adipose tissue and inflammatory cells in the CB breast muscle.
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Affiliation(s)
- Yuwares Malila
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Pathum Thani, Thailand
- *Correspondence: Yuwares Malila,
| | - Pornnicha Sanpinit
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Pathum Thani, Thailand
| | - Wilawan Thongda
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Pathum Thani, Thailand
- Center of Excellence for Shrimp Molecular Biology and Biotechnology (CENTEX Shrimp), Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Anuwat Jandamook
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
| | - Yanee Srimarut
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Pathum Thani, Thailand
| | - Yupin Phasuk
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
| | - Sajee Kunhareang
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
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