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Mady EA, Osuga H, Toyama H, El-Husseiny HM, Inoue R, Murase H, Yamamoto Y, Nagaoka K. Relationship between the components of mare breast milk and foal gut microbiome: shaping gut microbiome development after birth. Vet Q 2024; 44:1-9. [PMID: 38733121 PMCID: PMC11089936 DOI: 10.1080/01652176.2024.2349948] [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: 09/09/2023] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
The gut microbiota (GM) is essential for mammalian health. Although the association between infant GM and breast milk (BM) composition has been well established in humans, such a relationship has not been investigated in horses. Hence, this study was conducted to analyze the GM formation of foals during lactation and determine the presence of low-molecular-weight metabolites in mares' BM and their role in shaping foals' GM. The fecal and BM samples from six pairs of foals and mares were subjected to 16S ribosomal RNA metagenomic and metabolomic analyses, respectively. The composition of foal GM changed during lactation time; hierarchical cluster analysis divided the fetal GM into three groups corresponding to different time points in foal development. The level of most metabolites in milk decreased over time with increasing milk yield, while threonic acid and ascorbic acid increased. Further analyses revealed gut bacteria that correlated with changes in milk metabolites; for instance, there was a positive correlation between Bacteroidaceae in the foal's gut microbiota and serine/glycine in the mother's milk. These findings help improve the rearing environment of lactating horses and establish artificial feeding methods for foals.
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Affiliation(s)
- Eman A. Mady
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Department of Animal Hygiene, Behavior, and Management, Faculty of Veterinary Medicine, Benha University, Moshtohor, Toukh, Elqaliobiya, Egypt
| | - Haruna Osuga
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Haruka Toyama
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Hussein M. El-Husseiny
- Laboratory of Veterinary Surgery, Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Ryo Inoue
- Laboratory of Animal Science, Department of Applied Biological Science, Setsunan University, Osaka, Japan
| | - Harutaka Murase
- Hidaka Training and Research Center, Japan Racing Association, Hokkaido, Japan
| | - Yuki Yamamoto
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Kentaro Nagaoka
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
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2
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Wester RJ, Baillie LL, McCarthy GC, Keever CC, Jeffery LE, Adams PJ. Dysbiosis not observed in Canadian horse with free fecal liquid (FFL) using 16S rRNA sequencing. Sci Rep 2024; 14:12903. [PMID: 38839848 PMCID: PMC11153561 DOI: 10.1038/s41598-024-63868-1] [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: 12/07/2023] [Accepted: 06/03/2024] [Indexed: 06/07/2024] Open
Abstract
Free Fecal Liquid (FFL), also termed Fecal Water Syndrome (FWS), is an ailment in horses characterized by variable solid and liquid (water) phases at defecation. The liquid phase can be excreted before, during, or after the solid defecation phase. While the underlying causes of FFL are unknown, hindgut dysbiosis is suggested to be associated with FFL. Three European studies investigated dysbiosis in horses with FFL using 16S rRNA sequencing and reported results that conflicted between each other. In the present study, we also used 16S rRNA sequencing to study the fecal microbial composition in 14 Canadian horses with FFL, and 11 healthy stable mate controls. We found no significant difference in fecal microbial composition between FFL and healthy horses, which further supports that dysbiosis is not associated with FFL.
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Affiliation(s)
- Robert J Wester
- Applied Genomics Centre, Kwantlen Polytechnic University, Surrey, BC, Canada
| | - Lyndsey L Baillie
- Applied Genomics Centre, Kwantlen Polytechnic University, Surrey, BC, Canada
| | - Garrett C McCarthy
- Applied Genomics Centre, Kwantlen Polytechnic University, Surrey, BC, Canada
| | - Carson C Keever
- Faculty of Science, Kwantlen Polytechnic University, Surrey, BC, Canada
| | | | - Paul J Adams
- Applied Genomics Centre, Kwantlen Polytechnic University, Surrey, BC, Canada.
- Faculty of Science, Kwantlen Polytechnic University, Surrey, BC, Canada.
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3
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Vinayamohan PG, Poelstra J, Cheng TY, Goetz H, Renaud DL, Gomez DE, Habing G. Exploring the effects of transport duration on the fecal microbial communities of surplus dairy calves. J Dairy Sci 2024; 107:3863-3884. [PMID: 38216047 DOI: 10.3168/jds.2023-24002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 12/03/2023] [Indexed: 01/14/2024]
Abstract
Transportation significantly affects the health and welfare of surplus dairy calves, largely due to the various stressors and pathogen exposures encountered during the process. Concurrently, an animal's microbiome is known to correlate with its health status, with stress-induced alterations in the microbiota potentially precipitating various diseases. This study aimed to compare the effects of transportation durations of 6, 12, or 16 h on the fecal microbiota in young surplus dairy calves. We used a randomized controlled design in which surplus dairy calves aged 1 to 19 d from 5 commercial dairy farms in Ontario were allocated into 1 of 3 transportation groups (6, 12, and 16 h of continuous transportation). Health assessments were conducted before, immediately after, and for 2 wk following transportation. Fecal samples were collected before, immediately after, and at 24 and 72 h after transportation and subjected to 16S rRNA sequencing. Alpha diversity metrics showed no significant differences between the 3 transportation groups at any of the sampling time points. Although β diversity metrics revealed no clustering by transportation groups, they indicated significant differences across sampling time points within each group. The overall analysis revealed a total of 22 phyla and 353 genera, with Firmicutes, Bacteroidetes, Proteobacteria, Actinobacteria, and Fusobacteria being the most abundant phyla. Bacteroides, Escherichia/Shigella, Lactobacillus, Collinsella, and Bifidobacterium were the most abundant genera. The reduction in Fusobacteria abundance before and after transport was significantly larger in the 16-h transportation group when compared with the 6-h transportation group. We also identified several genus-level and amplicon sequence variation-level taxa that displayed significant differences in their abundances across various transportation groups, observed at all sampling time points investigated. This research identifies microbiota changes due to varying transportation durations in surplus dairy calves, providing a broad understanding of the microbial shifts in surplus dairy calves after transportation across varying durations. Although these variations may not directly correlate with overall calf health or indicate dysbiosis, these results emphasize the importance of further investigating transportation practices to enhance calf health and well-being. Further studies are warranted to elucidate the relationship between microbiota and calf health.
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Affiliation(s)
| | - Jelmer Poelstra
- Molecular and Cellular Imaging Center (MCIC), The Ohio State University, Wooster, OH 44691
| | - Ting-Yu Cheng
- Department of Veterinary Preventive Medicine, The Ohio State University, Columbus, OH 43210
| | - Hanne Goetz
- Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada, NIG 2W1
| | - David L Renaud
- Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada, NIG 2W1
| | - Diego E Gomez
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada, NIG 2W1
| | - Greg Habing
- Department of Veterinary Preventive Medicine, The Ohio State University, Columbus, OH 43210.
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Mienaltowski MJ, Callahan M, De La Torre U, Maga EA. Comparing microbiotas of foals and their mares' milk in the first two weeks after birth. BMC Vet Res 2024; 20:17. [PMID: 38191395 PMCID: PMC10775675 DOI: 10.1186/s12917-023-03864-1] [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: 05/04/2023] [Accepted: 12/21/2023] [Indexed: 01/10/2024] Open
Abstract
BACKGROUND The mare-foal relationship is essential for the well-being and growth of a foal. Mare's milk provides a foal with nutrients, protective immunity, and microbes. Within the first two weeks of life, there is a risk for a foal to suffer from diarrhea, particularly "foal heat diarrhea" which happens at about the time of a mare's estrus cycle but is more likely due to transitions in the microbiota in the foal's gastrointestinal (GI) tract. We hypothesized that this GI microbiota transition could be caused by changes in lysozyme and microbial populations in the mare's milk. To test this hypothesis, fifteen mare-foal pairs were followed in the first 15 days post-foaling. Every other day milk was collected from mares and rectal swabs were collected from foals. Lysozyme activity in the mare's milk was measured using a fluorescence assay. Microbial DNA was isolated from the milk and swabs and the V4 domain of 16 S rRNA genes were PCR amplified and sequenced using Illumina MiSeq technology. Microbial populations were analyzed using DADA2 and phyloseq within R. RESULTS Mare's milk lysozyme activity peaked for samples at Day 1 and levels dropped to 72.5% of Day 1 activity by Day 15; however, microbial populations in the mare's milk did not vary significantly over the two weeks. Furthermore, levels of microbial diversity found in foal rectal swabs were initially similar to microbial diversity seen in mare's milk; however, over the first fifteen days, diversity increased for the foal rectal swab microbiota and swab microbial populations differed from milk microbes. A transition occurred shifting from microbes from the phylum Proteobacteria early in rectal swabs to those primarily from the phyla Firmicutes and Bacteroidota after the first few days post-foaling. These phyla contained several families and genera of microbes that promote utilization of milk components in healthy gut transition. Microbial abundance levels correlated more with days post-parturition than with lysozyme activity and mare's milk microbial populations. CONCLUSIONS The findings suggest that much of the microbial populations responsible for the transition of the foal's gut comes from sources outside of mare's milk species and levels of lysozyme activity.
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Affiliation(s)
- Michael J Mienaltowski
- Department of Animal Science, University of California Davis, One Shields Avenue, 2251 Meyer Hall, Davis, CA, 95616, USA.
| | - Mitchell Callahan
- Department of Animal Science, University of California Davis, One Shields Avenue, 2251 Meyer Hall, Davis, CA, 95616, USA
| | - Ubaldo De La Torre
- Department of Animal Science, University of California Davis, One Shields Avenue, 2251 Meyer Hall, Davis, CA, 95616, USA
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, BRB 440, Portland, OR, 97239, USA
| | - Elizabeth A Maga
- Department of Animal Science, University of California Davis, One Shields Avenue, 2251 Meyer Hall, Davis, CA, 95616, USA
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Bull K, Davies G, Jenkins TP, Peachey L. The faecal microbiome of Exmoor ponies shows step-wise compositional changes with increasing levels of management by humans. Equine Vet J 2024; 56:159-170. [PMID: 37264698 DOI: 10.1111/evj.13961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 05/05/2023] [Indexed: 06/03/2023]
Abstract
BACKGROUND Horses can suffer from gastrointestinal (GI) disease in domestic environments, often precipitated by human-led changes in management. Understanding the consequences of these changes on equine gut microbiota is key to the prevention of such disease episodes. OBJECTIVE Profile the faecal microbiota of adult female Exmoor ponies under three management conditions, representing increasing levels of management by humans, encompassing different diets; whilst controlling for age, breed and sex. STUDY DESIGN Cross-sectional descriptive. METHODS Faecal samples were collected from three populations of Exmoor ponies kept under contrasting management conditions: 29 adult female ponies in groups with low management (LM) (n = 10), medium management (MM) (n = 10) and high management (HM) (n = 9) levels, based on diet, drug use, handling and exercise. Faecal microbial composition was profiled via high-throughput sequencing of the bacterial 16S rRNA gene, and functional metagenome predictions. RESULTS We observed profound step-wise changes in microbiome structure in the transition from LM to MM to HM. A relatively high abundance of Proteobacteria and Tenericutes was associated with the HM group; higher abundance of Methanobacteria was observed in the LM group. The MM group had intermediate levels of these taxa and exhibited high 'within group' variation in alpha diversity. Functional predictions revealed increased amino acid and lipid metabolism in HM; energy metabolism in LM and carbohydrate metabolism and immune/metabolic disease pathways in MM. MAIN LIMITATIONS Low group sizes, incomplete knowledge of bacterial genomes in equine gut microbiota and it was not possible to assess the relative impact of diet, drug use, handling and exercise on the microbiome as variables were confounded. CONCLUSIONS Human-led management factors had profound step-wise effects on faecal microbial composition. Based on functional metagenome predictions, we hypothesise that dietary differences between groups were the major driver of observed differences.
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Affiliation(s)
- Katie Bull
- School of Veterinary Sciences, University of Bristol, Bristol, UK
| | - Gareth Davies
- School of Veterinary Sciences, University of Bristol, Bristol, UK
| | - Timothy P Jenkins
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Laura Peachey
- School of Veterinary Sciences, University of Bristol, Bristol, UK
- Department of Veterinary Medicine, University of Cambridge, Cambridge, UK
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Thorel M, Obregon D, Mulot B, Maitre A, Mateos-Hernandez L, Moalic PY, Wu-Chuang A, Cabezas-Cruz A, Leclerc A. Conserved core microbiota in managed and free-ranging Loxodonta africana elephants. Front Microbiol 2023; 14:1247719. [PMID: 37860133 PMCID: PMC10582353 DOI: 10.3389/fmicb.2023.1247719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/30/2023] [Indexed: 10/21/2023] Open
Abstract
The gut microbiota plays a crucial role in animal health and homeostasis, particularly in endangered species conservation. This study investigated the fecal microbiota composition of European captive-bred African savanna elephants (Loxodonta africana) housed in French zoos, and compared it with wild African savanna elephants. Fecal samples were collected and processed for DNA extraction and amplicon sequencing of the 16S rRNA gene. The analysis of α and β diversity revealed significant effects of factors such as diet, daily activity, and institution on microbiota composition. Specifically, provision of branches as part of the diet positively impacted microbiota diversity. Comparative analyses demonstrated distinct differences between captive and wild elephant microbiomes, characterized by lower bacterial diversity and altered co-occurrence patterns in the captive population. Notably, specific taxa were differentially abundant in captive and wild elephants, suggesting the influence of the environment on microbiota composition. Furthermore, the study identified a core association network shared by both captive and wild elephants, emphasizing the importance of certain taxa in maintaining microbial interactions. These findings underscore the impact of environment and husbandry factors on elephant gut microbiota, highlighting the benefits of dietary enrichment strategies in zoos to promote microbiome diversity and health. The study contributes to the broader understanding of host-microbiota interactions and provides insights applicable to conservation medicine and captive animal management.
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Affiliation(s)
- Milan Thorel
- ZooParc de Beauval and Beauval Nature, Saint-Aignan, France
| | - Dasiel Obregon
- School of Environmental Sciences, University of Guelph, Guelph, ON, Canada
| | - Baptiste Mulot
- ZooParc de Beauval and Beauval Nature, Saint-Aignan, France
| | - Apolline Maitre
- Anses, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR BIPAR, Laboratoire de Santé Animale, Maisons-Alfort, France
| | - Lourdes Mateos-Hernandez
- Anses, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR BIPAR, Laboratoire de Santé Animale, Maisons-Alfort, France
| | | | - Alejandra Wu-Chuang
- Anses, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR BIPAR, Laboratoire de Santé Animale, Maisons-Alfort, France
| | - Alejandro Cabezas-Cruz
- Anses, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR BIPAR, Laboratoire de Santé Animale, Maisons-Alfort, France
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Li C, Li X, Guo R, Ni W, Liu K, Liu Z, Dai J, Xu Y, Abduriyim S, Wu Z, Zeng Y, Lei B, Zhang Y, Wang Y, Zeng W, Zhang Q, Chen C, Qiao J, Liu C, Hu S. Expanded catalogue of metagenome-assembled genomes reveals resistome characteristics and athletic performance-associated microbes in horse. MICROBIOME 2023; 11:7. [PMID: 36631912 PMCID: PMC9835274 DOI: 10.1186/s40168-022-01448-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 12/14/2022] [Indexed: 06/12/2023]
Abstract
BACKGROUND As a domesticated species vital to humans, horses are raised worldwide as a source of mechanical energy for sports, leisure, food production, and transportation. The gut microbiota plays an important role in the health, diseases, athletic performance, and behaviour of horses. RESULTS Here, using approximately 2.2 Tb of metagenomic sequencing data from gut samples from 242 horses, including 110 samples from the caecum and 132 samples from the rectum (faeces), we assembled 4142 microbial metagenome-assembled genomes (MAG), 4015 (96.93%) of which appear to correspond to new species. From long-read data, we successfully assembled 13 circular whole-chromosome bacterial genomes representing novel species. The MAG contained over 313,568 predicted carbohydrate-active enzymes (CAZy), over 59.77% of which had low similarity match in CAZy public databases. High abundance and diversity of antibiotic resistance genes (ARG) were identified in the MAG, likely showing the wide use of antibiotics in the management of horse. The abundances of at least 36 MAG (e.g. MAG belonging to Lachnospiraceae, Oscillospiraceae, and Ruminococcus) were higher in racehorses than in nonracehorses. These MAG enriched in racehorses contained every gene in a major pathway for producing acetate and butyrate by fibre fermentation, presenting potential for greater amount of short-chain fatty acids available to fuel athletic performance. CONCLUSION Overall, we assembled 4142 MAG from short- and long-read sequence data in the horse gut. Our dataset represents an exhaustive microbial genome catalogue for the horse gut microbiome and provides a valuable resource for discovery of performance-enhancing microbes and studies of horse gut microbiome. Video Abstract.
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Affiliation(s)
- Cunyuan Li
- College of Life Science, Shihezi University, Shihezi, 832003 Xinjiang China
- Key Laboratory of Ecological Corps for Oasis City and Mountain Basin System, Shihezi University, Shihezi, 832003 Xinjiang China
- College of Animal Science and Technology, Shihezi University, Shihezi, 832003 Xinjiang China
| | - Xiaoyue Li
- College of Life Science, Shihezi University, Shihezi, 832003 Xinjiang China
- Key Laboratory of Ecological Corps for Oasis City and Mountain Basin System, Shihezi University, Shihezi, 832003 Xinjiang China
| | - Rongjun Guo
- Novogene Bioinformatics Institute, Beijing, 100000 China
| | - Wei Ni
- College of Life Science, Shihezi University, Shihezi, 832003 Xinjiang China
- Key Laboratory of Ecological Corps for Oasis City and Mountain Basin System, Shihezi University, Shihezi, 832003 Xinjiang China
| | - Kaiping Liu
- College of Life Science, Shihezi University, Shihezi, 832003 Xinjiang China
- State Key Laboratory of Sheep Genetic Improvement and Healthy Production, Xinjiang Academy of Agricultural and Reclamation Science, Shihezi, 830003 Xinjiang China
| | - Zhuang Liu
- College of Life Science, Shihezi University, Shihezi, 832003 Xinjiang China
| | - Jihong Dai
- College of Life Science, Shihezi University, Shihezi, 832003 Xinjiang China
| | - Yueren Xu
- College of Life Science, Shihezi University, Shihezi, 832003 Xinjiang China
| | | | - Zhuangyuan Wu
- Xinjiang Altay Animal Husbandry and Veterinary Station, Altay, 836501 Xinjiang China
| | - Yaqi Zeng
- College of Animal Science, Xinjiang Agricultural University, Urumqi, 830000 Xinjiang China
| | - Bingbing Lei
- College of Life Science, Shihezi University, Shihezi, 832003 Xinjiang China
| | - Yunfeng Zhang
- State Key Laboratory of Sheep Genetic Improvement and Healthy Production, Xinjiang Academy of Agricultural and Reclamation Science, Shihezi, 830003 Xinjiang China
| | - Yue Wang
- College of Life Science, Shihezi University, Shihezi, 832003 Xinjiang China
| | - Weibin Zeng
- College of Animal Science and Technology, Shihezi University, Shihezi, 832003 Xinjiang China
| | - Qiang Zhang
- College of Animal Science and Technology, Shihezi University, Shihezi, 832003 Xinjiang China
| | - Chuangfu Chen
- College of Animal Science and Technology, Shihezi University, Shihezi, 832003 Xinjiang China
| | - Jun Qiao
- College of Animal Science and Technology, Shihezi University, Shihezi, 832003 Xinjiang China
| | - Chen Liu
- Novogene Bioinformatics Institute, Beijing, 100000 China
| | - Shengwei Hu
- College of Life Science, Shihezi University, Shihezi, 832003 Xinjiang China
- Key Laboratory of Ecological Corps for Oasis City and Mountain Basin System, Shihezi University, Shihezi, 832003 Xinjiang China
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Li XB, Huang XX, Li Q, Li XY, Li JH, Li C, He LJ, Jing HX, Yang KL. Effects of different grains on bacterial diversity and enzyme activity associated with digestion of starch in the foal stomach. BMC Vet Res 2022; 18:407. [PMCID: PMC9670411 DOI: 10.1186/s12917-022-03510-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 11/08/2022] [Indexed: 11/18/2022] Open
Abstract
Abstract
Background
Compared with the stomach of ruminant cattle, the stomach of horse is small and mainly for chemical digestion, but the microorganisms in the stomach play an important role in maintaining the homeostasis of the internal environment. Due to the complexity of the microbes in the stomach, little is known about the diversity and structure of bacteria in the equine stomach. Grains are the main energy source for plant-eating livestock and energy is derived through enzymatic hydrolysis of grains into glucose or their microbial fermentation into Volatile fatty acids (VFA). However, the mechanism through which these ingested grains are chemically digested as well as the effect of these grains on the stomach remains elusive. This study explored the effects of feeding different grains (corn, oats, and barley) on bacterial diversity, structure, and composition in the foal’s stomach content. Furthermore, the effects of different grains on the vitality of starch digestion-related stomach enzymes were investigated.
Results
No significant differences were observed (P > 0.05) in the bacterial rarefaction curves of Operational Taxonomic Units (OTUs) and diversity of the stomach microbiota in all foals. This study also revealed the statistical differences for Firmicutes, Cyanobacteria, Actinobacteria, Fibrobacteres, Lactobacillaceae, Streptococcaceae, Unidentified_Clostridiales, Prevotellaceae, Lactobacillus, Streptococcus, Unidentified_Cyanobacteria, Unidentified_Clostridiales, Lactococcus, Sphingomonas, Lactobacillus_hayakitensis, Lactobacillus_equigenerosi, and Clostridium_perfringens. The linear discriminant analysis effect size analysis revealed 9 bacteria at each classification level. The functional analysis of species information by using FAPROTAX software was able to predict 35 functions, and the top 5 functions were chemoheterotrophy, fermentation, animal_parasites_or_symbionts, nitrate_reduction, and aerobic_chemoheterotrophy. The study also revealed statistical differences for pH, glucose concentration, β-amylase, maltase, and amylase.
Conclusions
The different grains had no significant effect on the microbial diversity of the stomach content of the foal. However, the relative bacterial abundances differed significantly in response to different diets. Particularly, oats fed to the foals significantly increased the relative abundance of Firmicutes, Lactobacillaceae, Lactobacillus, and Lactobacillus_hayakitensis. The grain had no significant effect on the pH of the stomach content, glucose concentration, and enzyme viability in the foal.
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Yan J, Yu W, Wang G, Lu C, Liu C, Jiang L, Jiang Z, Liang Z, Liu D. LRRK2 deficiency mitigates colitis progression by favoring resolution of inflammation and restoring homeostasis of gut microbiota. Genomics 2022; 114:110527. [PMID: 36455749 DOI: 10.1016/j.ygeno.2022.110527] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 11/19/2022] [Accepted: 11/26/2022] [Indexed: 11/29/2022]
Abstract
Leucine rich-repeat kinase 2 (LRRK2) has been considered a susceptibility gene for ulcerative colitis (UC), and its protein abundance was enhanced in the peripheral blood mononuclear cells (PBMCs) from UC cohorts as compared to healthy volunteers. In preclinical models of colitis, Lrrk2 deficiency ameliorated dextran sodium sulfate (DSS)-induced colitis progression, whereas the processes were aggravated by R1441C mutation. While intestinal macrophages (MФs) from Lrrk2 knock-out (Lrrk2-/-) mice exhibited a tendency to transit to alternatively activated MФs, R1441C MФs mutation facilitated the pro-inflammatory phenotype polarization, determined by RNA sequencing and qPCR. Moreover, we characterized their microbiota profiles and found that loss of Lrrk2 increased the bacterial richness and altered bacterial community structure, and this shift contributed to the alleviation of colitis development and progression. We proposed that Lrrk2 deficiency promotes M2 MФ transition and facilitates probiotics colonization, providing a protective role during colitis.
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Affiliation(s)
- Jing Yan
- Department of Physiology, Jining Medical University, Jining city, Shandong province 272067, China.
| | - Wei Yu
- Department of Physiology, Jining Medical University, Jining city, Shandong province 272067, China
| | - Guoliang Wang
- Department of Physiology, Jining Medical University, Jining city, Shandong province 272067, China
| | - Chang Lu
- Department of Physiology, Jining Medical University, Jining city, Shandong province 272067, China
| | - Chen Liu
- Department of Physiology, Jining Medical University, Jining city, Shandong province 272067, China
| | - Lu Jiang
- Department of Physiology, Jining Medical University, Jining city, Shandong province 272067, China
| | - Zizheng Jiang
- Department of Physiology, Jining Medical University, Jining city, Shandong province 272067, China
| | - Zhenghao Liang
- Department of Physiology, Jining Medical University, Jining city, Shandong province 272067, China
| | - Dong Liu
- Department of Clinical Laboratory, Affiliated Hospital of Jining Medical University, Jining city, Shandong province 272067, China
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10
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Li C, Cai H, Li S, Liu G, Deng X, Bryden WL, Zheng A. Comparing the potential of Bacillus amyloliquefaciens CGMCC18230 with antimicrobial growth promoters for growth performance, bone development, expression of phosphorus transporters, and excreta microbiome in broiler chickens. Poult Sci 2022; 101:102126. [PMID: 36099660 PMCID: PMC9474562 DOI: 10.1016/j.psj.2022.102126] [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: 05/12/2022] [Revised: 07/21/2022] [Accepted: 08/03/2022] [Indexed: 11/09/2022] Open
Abstract
Bone health of broiler chickens is essential for welfare and production. In this study, the probiotic Bacillus amyloliquefaciens (BA) CGMCC18230 was compared with antimicrobial growth promoters (AGPs) for its ability to promote growth and bone health. To address this, a total of 180 Arbor Acres (AA) 1-day-old, male, broiler chicks were randomly allocated into 3 treatment groups, with 6 replicates, containing 10 chicks in each replicate. The treatment groups were: control group (CON) fed a corn-soybean based diet; BA treatment group fed the basal diet supplemented with 2.5 × 1010 CFU/kg BA CGMCC18230; AGPs treatment group was fed the basal diet containing the antibiotics aureomycin (75 mg/kg), flavomycin (5 mg/kg) and kitasamycin (20 mg/kg). Over the 42 d experiment, broilers fed BA and AGPs diets both had higher BW, and the ADG was significantly (P < 0.05) higher than that of the CON group both in the grower phase (22–42 d) and overall. Moreover, with BA birds had higher (P < 0.05) serum concentrations of phosphorus (P, day 42) and alkaline phosphatase (ALP, days 21 and 42). Conversely, the content of P in excreta decreased significantly (P < 0.05) on days 21 and 42. Tibia bone mineralization was improved in BA, and the mRNA of P transport related genes PiT-1,2 in the duodenum and jejunum were significantly up-regulated in the BA group than in the CON group (P < 0.05). 16S rRNA gene sequencing revealed that dietary BA supplementation increased the relative abundance of butyrate-producing bacteria (Ruminococcaceae) and polyamine-producing bacteria (Akkermansia and Alistipes), which had a positive effect on bone development. These data show that dietary supplementation of BA CGMCC18320 improves broiler growth performance and bone health similar to supplementation with AGPs through up-regulation of intestinal P transporters, microbial modulation and increase P retention. However, no significant influence of BA CGMCC18320 supplementation on the retention of Ca was found.
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Li K, Zeng Z, Liu J, Pei L, Wang Y, Li A, Kulyar MFEA, Shahzad M, Mehmood K, Li J, Qi D. Effects of Short-Chain Fatty Acid Modulation on Potentially Diarrhea-Causing Pathogens in Yaks Through Metagenomic Sequencing. Front Cell Infect Microbiol 2022; 12:805481. [PMID: 35402298 PMCID: PMC8983862 DOI: 10.3389/fcimb.2022.805481] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 02/25/2022] [Indexed: 12/30/2022] Open
Abstract
Short-chain fatty acids (SCFA) are principal nutrient substrates of intestinal epithelial cells that regulate the epithelial barrier in yaks. Until now, metagenomics sequencing has not been reported in diarrheal yaks. Scarce information is available regarding the levels of fecal SCFA and diarrhea in yaks. So, our study aims to identify the potential pathogens that cause the emerging diarrhea and explore the potential relationship of short-chain fatty acids in this issue. We estimated diarrhea rate in yaks after collecting an equal number of fecal samples from affected animals. Metagenomics sequencing and quantitative analysis of SCFA were performed, which revealed 15%–25% and 5%–10% prevalence of diarrhea in yak’s calves and adults, respectively. Violin box plot also showed a higher degree of dispersion in gene abundance distribution of diarrheal yaks, as compared to normal yaks. We found 366,163 significant differential abundance genes in diarrheal yaks, with 141,305 upregulated and 224,858 downregulated genes compared with normal yaks via DESeq analysis. Metagenomics binning analysis indicated the higher significance of bin 33 (Bacteroidales) (p < 0.05) in diarrheal animals, while bin 10 (p < 0.0001), bin 30 (Clostridiales) (p < 0.05), bin 51 (Lactobacillales) (p < 0.05), bin 8 (Lachnospiraceae) (p < 0.05), and bin 47 (Bacteria) (p < 0.05) were significantly higher in normal yaks. At different levels, a significant difference in phylum (n = 4), class (n = 8), oder (n = 8), family (n = 16), genus (n = 17), and species (n = 30) was noticed, respectively. Compared with healthy yaks, acetic acid (p < 0.01), propionic acid (p < 0.01), butyric acid (p < 0.01), isobutyric acid (p < 0.01), isovaleric acid (p < 0.05), and caproic acid (p < 0.01) were all observed significantly at a lower rate in diarrheal yaks. In conclusion, besides the increased Staphylococcus aureus, Babesia ovata, Anaplasma phagocytophilum, Bacteroides fluxus, viruses, Klebsiella pneumonia, and inflammation-related bacteria, the decrease of SCFA caused by the imbalance of intestinal microbiota was potentially observed in diarrheal yaks.
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Affiliation(s)
- Kun Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
- *Correspondence: Kun Li, ; Jiakui Li, ; Desheng Qi,
| | - Zhibo Zeng
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Juanjuan Liu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Lulu Pei
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Yaping Wang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Aoyun Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | | | - Muhammad Shahzad
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Khalid Mehmood
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- *Correspondence: Kun Li, ; Jiakui Li, ; Desheng Qi,
| | - Desheng Qi
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
- *Correspondence: Kun Li, ; Jiakui Li, ; Desheng Qi,
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Multi-Omics Analysis to Generate Hypotheses for Mild Health Problems in Monkeys. Metabolites 2021; 11:metabo11100701. [PMID: 34677416 PMCID: PMC8538200 DOI: 10.3390/metabo11100701] [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: 09/14/2021] [Revised: 09/28/2021] [Accepted: 10/09/2021] [Indexed: 11/17/2022] Open
Abstract
Certain symptoms associated with mild sickness and lethargy have not been categorized as definitive diseases. Confirming such symptoms in captive monkeys (Macaca fascicularis, known as cynomolgus monkeys) can be difficult; however, it is possible to observe and analyze their feces. In this study, we investigated the relationship between stool state and various omics data by considering objective and quantitative values of stool water content as a phenotype for analysis. By examining the food intake of the monkeys and assessing their stool, urine, and plasma, we attempted to obtain a comprehensive understanding of the health status of individual monkeys and correlate it with the stool condition. Our metabolomics data strongly suggested that many lipid-related metabolites were correlated with the stool water content. The lipidomic analysis revealed the involvement of saturated and oxidized fatty acids, metallomics revealed the contribution of selenium (a bio-essential trace element), and intestinal microbiota analysis revealed the association of several bacterial species with the stool water content. Based on our results, we hypothesize that the redox imbalance causes minor health problems. However, it is not possible to make a definite conclusion using multi-omics alone, and other hypotheses could be proposed.
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Hu D, Yang J, Qi Y, Li B, Li K, Mok KM. Metagenomic Analysis of Fecal Archaea, Bacteria, Eukaryota, and Virus in Przewalski's Horses Following Anthelmintic Treatment. Front Vet Sci 2021; 8:708512. [PMID: 34490397 PMCID: PMC8416479 DOI: 10.3389/fvets.2021.708512] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 07/07/2021] [Indexed: 12/25/2022] Open
Abstract
Intestinal microbiota is involved in immune response and metabolism of the host. The frequent use of anthelmintic compounds for parasite expulsion causes disturbance to the equine intestinal microbiota. However, most studies were on the effects of such treatment on the intestinal bacterial microbes; none is on the entire microbial community including archaea and eukaryotic and viral community in equine animals. This study is the first to explore the differences of the microbial community composition and structure in Przewalski's horses prior to and following anthelmintic treatment, and to determine the corresponding changes of their functional attributes based on metagenomic sequencing. Results showed that in archaea, the methanogen of Euryarchaeota was the dominant phylum. Under this phylum, anthelmintic treatment increased the Methanobrevibacter genus and decreased the Methanocorpusculum genus and two other dominant archaea species, Methanocorpusculum labreanum and Methanocorpusculum bavaricum. In bacteria, Firmicutes and Bacteroidetes were the dominant phyla. Anthelmintic treatment increased the genera of Clostridium and Eubacterium and decreased those of Bacteroides and Prevotella and dominant bacteria species. These altered genera were associated with immunity and digestion. In eukaryota, anthelmintic treatment also changed the genera related to digestion and substantially decreased the relative abundances of identified species. In virus, anthelmintic treatment increased the genus of unclassified_d__Viruses and decreased those of unclassified_f__Siphoviridae and unclassified_f__Myoviridae. Most of the identified viral species were classified into phage, which were more sensitive to anthelmintic treatment than other viruses. Furthermore, anthelmintic treatment was found to increase the number of pathogens related to some clinical diseases in horses. The COG and KEGG function analysis showed that the intestinal microbiota of Przewalski's horse mainly participated in the carbohydrate and amino acid metabolism. The anthelmintic treatment did not change their overall function; however, it displaced the population of the functional microbes involved in each function or pathway. These results provide a complete view on the changes caused by anthelmintic treatment in the intestinal microbiota of the Przewalski's horses.
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Affiliation(s)
- Dini Hu
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, China
| | - Jianming Yang
- Xinjiang Research Centre for Breeding Przewalski's Horse, Urumqi, China
| | - Yingjie Qi
- Xinjiang Kalamaili Ungulate Nature Reserve Management Center, Changji, China
| | - Boling Li
- China National Environment Monitoring Centre, Beijing, China
| | - Kai Li
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, China
| | - Kai Meng Mok
- Department of Civil and Environmental Engineering, University of Macau, Macao, China
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Goodman-Davis R, Figurska M, Cywinska A. Gut Microbiota Manipulation in Foals-Naturopathic Diarrhea Management, or Unsubstantiated Folly? Pathogens 2021; 10:pathogens10091137. [PMID: 34578169 PMCID: PMC8467620 DOI: 10.3390/pathogens10091137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 08/23/2021] [Accepted: 09/01/2021] [Indexed: 02/04/2023] Open
Abstract
Diarrhea in foals is a problem of significant clinical and economic consequence, and there are good reasons to believe microbiota manipulation can play an important role in its management. However, given the dynamic development of the foal microbiota and its importance in health and disease, any prophylactic or therapeutic efforts to alter its composition should be evidence based. The few clinical trials of probiotic preparations conducted in foals to date show underwhelming evidence of efficacy and a demonstrated potential to aggravate rather than mitigate diarrhea. Furthermore, recent studies have affirmed that variable but universally inadequate quality control of probiotics enables inadvertent administration of toxin-producing or otherwise pathogenic bacterial strains, as well as strains bearing transferrable antimicrobial resistance genes. Consequently, it seems advisable to approach probiotic therapy in particular with caution for the time being. While prebiotics show initial promise, an even greater scarcity of clinical trials makes it impossible to weigh the pros and cons of their use. Advancing technology will surely continue to enable more detailed and accurate mapping of the equine adult and juvenile microbiota and potentially elucidate the complexities of causation in dysbiosis and disease. In the meantime, fecal microbiota transplantation may be an attractive therapeutic shortcut, allowing practitioners to reconstruct a healthy microbiota even without fully understanding its constitution.
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Affiliation(s)
- Rachel Goodman-Davis
- Faculty of Veterinary Medicine, Warsaw University of Life Sciences—SGGW, Nowoursynowska 166, 02-787 Warsaw, Poland; (R.G.-D.); (M.F.)
- The Scientific Society of Veterinary Medicine, Warsaw University of Life Sciences—SGGW, 02-787 Warsaw, Poland
| | - Marianna Figurska
- Faculty of Veterinary Medicine, Warsaw University of Life Sciences—SGGW, Nowoursynowska 166, 02-787 Warsaw, Poland; (R.G.-D.); (M.F.)
| | - Anna Cywinska
- Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland
- Correspondence:
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Freccero F, Lanci A, Mariella J, Viciani E, Quercia S, Castagnetti A, Castagnetti C. Changes in the Fecal Microbiota Associated with a Broad-Spectrum Antimicrobial Administration in Hospitalized Neonatal Foals with Probiotics Supplementation. Animals (Basel) 2021; 11:ani11082283. [PMID: 34438741 PMCID: PMC8388449 DOI: 10.3390/ani11082283] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/21/2021] [Accepted: 07/27/2021] [Indexed: 12/14/2022] Open
Abstract
Simple Summary Post-antibiotic intestinal dysbiosis leads to an overall reduction in bacterial and functional diversity, along with a minor resistance against pathogens. The study aimed to determine the changes on the fecal microbiota in hospitalized neonatal foals administered with broad-spectrum antimicrobials and supplemented probiotics. Fecal samples were collected at hospital admission, at the end of the antimicrobial treatment and at discharge. Seven foals treated with intravenous ampicillin and aminoglycosides for a mean of seven days were included. The results suggest that the fecal microbiota of neonatal foals rapidly returns to a high diversity after treatment. While the findings need to be confirmed in a larger population, the study suggests that in foals, the effect of antimicrobials may be strongly influenced by the changes that occur over time in the developing gut microbiota. Of note, the findings are influenced by the use of probiotics, and whether the changes would be consistent in antimicrobial-administered but not supplemented foals remains to be elucidated. Abstract There is a wide array of evidence across species that exposure to antibiotics is associated with dysbiosis, and due to their widespread use, this also raises concerns also in medicine. The study aimed to determine the changes on the fecal microbiota in hospitalized neonatal foals administered with broad-spectrum antimicrobials and supplemented probiotics. Fecal samples were collected at hospital admission (Ta), at the end of the antimicrobial treatment (Te) and at discharge (Td). Feces were analysed by next-generation sequencing of the 16S rRNA gene on Illumina MiSeq. Seven foals treated with IV ampicillin and amikacin/gentamicin were included. The mean age at Ta was 19 h, the mean treatment length was 7 days and the mean time between Te and Td was 4.3 days. Seven phyla were identified: Actinobacteria, Bacteroidetes, Firmicutes, Fusobacteria, Proteobacteria, TM7 and Verrucomicrobia. At Ta, Firmicutes (48.19%) and Proteobacteria (31.56%) were dominant. The alpha diversity decreased from Ta to Te, but it was the highest at Td. The beta diversity was higher at Ta than at Te and higher at Td than at Te. An increase in Akkermansia over time was detected. The results suggest that the intestinal microbiota of neonatal foals rapidly returns to a high diversity after treatment. It is possible that in foals, the effect of antimicrobials is strongly influenced or overshadowed by the time-dependent changes in the developing gut microbiota.
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Affiliation(s)
- Francesca Freccero
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sora 50, Ozzano Dell’Emilia, 40064 Bologna, Italy; (F.F.); (J.M.); (C.C.)
| | - Aliai Lanci
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sora 50, Ozzano Dell’Emilia, 40064 Bologna, Italy; (F.F.); (J.M.); (C.C.)
- Correspondence:
| | - Jole Mariella
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sora 50, Ozzano Dell’Emilia, 40064 Bologna, Italy; (F.F.); (J.M.); (C.C.)
| | - Elisa Viciani
- Wellmicro srl, Via Piero Gobetti 101, 40127 Bologna, Italy; (E.V.); (S.Q.); (A.C.)
| | - Sara Quercia
- Wellmicro srl, Via Piero Gobetti 101, 40127 Bologna, Italy; (E.V.); (S.Q.); (A.C.)
| | - Andrea Castagnetti
- Wellmicro srl, Via Piero Gobetti 101, 40127 Bologna, Italy; (E.V.); (S.Q.); (A.C.)
| | - Carolina Castagnetti
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sora 50, Ozzano Dell’Emilia, 40064 Bologna, Italy; (F.F.); (J.M.); (C.C.)
- Health Science and Technologies Interdepartmental Center for Industrial Research (HST-ICIR), University of Bologna, Via Tolara di Sopra 41/E, Ozzano dell’Emilia, 40064 Bologna, Italy
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Jiang G, Zhang X, Gao W, Ji C, Wang Y, Feng P, Feng Y, Zhang Z, Li L, Zhao F. Transport stress affects the fecal microbiota in healthy donkeys. J Vet Intern Med 2021; 35:2449-2457. [PMID: 34331476 PMCID: PMC8478045 DOI: 10.1111/jvim.16235] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 07/20/2021] [Accepted: 07/21/2021] [Indexed: 11/28/2022] Open
Abstract
Background With the development of large‐scale donkey farming in China, long‐distance transportation has become common practice, and the incidence of intestinal diseases after transportation has increased. The intestinal microbiota is important in health and disease, and whether or not transportation disturbs the intestinal microbiota in donkeys has not been investigated. Objectives To determine the effects of transportation on the fecal microbiota of healthy donkeys using 16S rRNA sequencing. Animals Fecal and blood samples were collected from 12 Dezhou donkeys before and after transportation. Methods Prospective controlled study. Cortisol, ACTH, and heat‐shock protein 90 (HSP90) concentrations were measured. Sequencing of 16S rRNA was used to assess the microbial composition. Alpha diversity and beta diversity were assessed. Results Results showed significant (P < .05) increases in cortisol (58.1 ± 14.6 to 71.1 ± 9.60 ng/mL), ACTH (163.8 ± 31.9 to 315.8 ± 27.9 pg/mL), and HSP90 (10.8 ± 1.67 to 14.6 ± 1.75 ng/mL) on the day of arrival. A significantly lower (P = .04) level of bacterial richness was found in fecal samples after transportation, compared with that before transportation without distinct changes in diversity. Most notably, donkeys had significant decreases in Atopostipes, Eubacterium, Streptococcus, and Coriobacteriaceae. Conclusions and Clinical Importance Transportation can induce stress in healthy donkeys and have some effect on the composition of the in fecal microbiota. Additional studies are required to understand the potential effect of these microbiota changes, especially significantly decreased bacteria, on the development intestinal diseases in donkeys during recovery from transportation.
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Affiliation(s)
- Guimiao Jiang
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, China.,National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, Liaocheng, Shandong Province, China
| | - Xinhao Zhang
- National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, Liaocheng, Shandong Province, China.,College of Animal Science and Technology, Shangdong Agricultural University, Taian, China
| | - Weiping Gao
- National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, Liaocheng, Shandong Province, China
| | - Chuanliang Ji
- National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, Liaocheng, Shandong Province, China
| | - Yantao Wang
- National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, Liaocheng, Shandong Province, China
| | - Peixiang Feng
- National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, Liaocheng, Shandong Province, China
| | - Yulong Feng
- National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, Liaocheng, Shandong Province, China
| | - Zhiping Zhang
- The College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Lin Li
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - Fuwei Zhao
- National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, Liaocheng, Shandong Province, China.,College of Veterinary Medicine, Yangzhou University, Yangzhou, China
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Chen L, Xu D, Zhu J, Wang S, Liu M, Sun M, Wang G, Song L, Liu X, Xie T. Habitat environmental factors influence intestinal microbial diversity of the short-faced moles (Scaptochirus moschata). AMB Express 2021; 11:93. [PMID: 34164757 PMCID: PMC8222469 DOI: 10.1186/s13568-021-01252-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/15/2021] [Indexed: 01/23/2023] Open
Abstract
The short-faced moles (Scaptochirus moschata) are unique Chinese mammal that live in burrows for life. They have complex ecological adaptation mechanisms to adapt to perennial underground life. Intestinal microbes play an important role in the ecological adaptation of wild animals. The gut microbiota diversity and its function in short-faced moles’ ecological adaptation is a scientific issue worth exploring. In this study, the Illumina HiSeq sequencing platform was used to sequence the V3-V4 hypervariable regions of the 16S rRNA genes of 22 short-faced moles’ intestinal samples to study the composition and functional structure of their intestinal microbiota. The results showed that in the short-faced moles’ intestine, there are four main phyla, Firmicutes, Proteobacteria, Actinobacteria and Bacteroidete. At the family level, Peptostreptococcaceae and Enterobacteriaceae have the highest abundance. At the genus level, Romboutsia is the genus with the highest microbial abundance. According to the KEGG database, the main functions of short-faced mole gut microbes are metabolism, genetic information processing, environmental information processing, and cellular processes. The function of short-faced mole intestinal microbiota is suitable for its long-term burrowing life. No gender difference is found in the composition and function of the short-faced mole intestinal microbiota. There are significant differences in the composition and functional structure of the short-faced mole gut microbiota between samples collected from different habitats. We conferred that this is related to the different environment factors in which they live, especially to the edaphic factors.
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Hu D, Chao Y, Zhang B, Wang C, Qi Y, Ente M, Zhang D, Li K, Mok KM. Effects of Gasterophilus pecorum infestation on the intestinal microbiota of the rewilded Przewalski's horses in China. PLoS One 2021; 16:e0251512. [PMID: 33974667 PMCID: PMC8112688 DOI: 10.1371/journal.pone.0251512] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 04/27/2021] [Indexed: 12/11/2022] Open
Abstract
Horse botflies have been a threat to the Przewalski’s horses in the Kalamaili Nature Reserve in Xinjiang of China since their reintroduction to the original range. As larvae of these parasites could infest the intestine of a horse for months, they could interact with and alter the structure and composition of its intestinal microbiota, affecting adversely its health. Nonetheless, there are no such studies on the rewilded Przewalski’s horses yet. For the first time, this study characterizes the composition of the intestinal microbiota of 7 rewilded Przewalski’s horses infected severely by Gasterophilus pecorum following and prior to their anthelmintic treatment. Bioinformatics analyses of the sequence data obtained by amplicon high throughput sequencing of bacterial 16S rRNA genes showed that G. pecorum infestation significantly increased the richness of the intestinal microbial community but not its diversity. Firmicutes and Bacteroidetes were found the dominant phyla as in other animals, and the parasitic infestation decreased the F/B ratio largely by over 50%. Large reduction in relative abundances of the two genera Streptococcus and Lactobacillus observed with G. pecorum infestation suggested possible changes in colic and digestion related conditions of the infected horses. Variations on the relative abundance of the genus groups known to be pathogenic or symbiotic showed that adverse impact of the G. pecorum infestation could be associated with reduction of the symbiotic genera Lactobacillus and Bifidobacterium that are probiotics and able to promote immunity against parasitic infection.
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Affiliation(s)
- Dini Hu
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, China
| | - Yuzhu Chao
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, China
| | - Boru Zhang
- Qinhuangdao Forestry Bureau, Qinhuangdao, China
| | - Chen Wang
- Altay Management Station of Mt. Kalamaili Ungulate Nature Reserve, Altay, China
| | - Yingjie Qi
- Altay Management Station of Mt. Kalamaili Ungulate Nature Reserve, Altay, China
| | - Make Ente
- Xinjiang Research Centre for Breeding Przewalski’s Horse, Urumqi, China
| | - Dong Zhang
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, China
| | - Kai Li
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, China
- * E-mail: (KL); (KMM)
| | - Kai Meng Mok
- Department of Civil and Environmental Engineering, University of Macau, Macao, China
- * E-mail: (KL); (KMM)
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19
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Affiliation(s)
- B. W. Sykes
- School of Veterinary Sciences Massey University Palmerston North New Zealand
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20
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Wimmer-Scherr C, Taminiau B, Renaud B, van Loon G, Palmers K, Votion D, Amory H, Daube G, Cesarini C. Comparison of Fecal Microbiota of Horses Suffering from Atypical Myopathy and Healthy Co-Grazers. Animals (Basel) 2021; 11:ani11020506. [PMID: 33672034 PMCID: PMC7919468 DOI: 10.3390/ani11020506] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/09/2021] [Accepted: 02/11/2021] [Indexed: 12/21/2022] Open
Abstract
Equine atypical myopathy (AM) is caused by hypoglycin A (HGA) and methylenecyclopropylglycine (MCPG) intoxication resulting from the ingestion of seeds or seedlings of some Acer tree species. Interestingly, not all horses pasturing in the same toxic environment develop signs of the disease. In other species, it has been shown that the intestinal microbiota has an impact on digestion, metabolism, immune stimulation and protection from disease. The objective of this study was to characterize and compare fecal microbiota of horses suffering from AM and healthy co-grazers. Furthermore, potential differences in fecal microbiota regarding the outcome of diseased animals were assessed. This prospective observational study included 59 horses with AM (29 survivors and 30 non-survivors) referred to three Belgian equine hospitals and 26 clinically healthy co-grazers simultaneously sharing contaminated pastures during spring and autumn outbreak periods. Fresh fecal samples (rectal or within 30 min of defecation) were obtained from all horses and bacterial taxonomy profiling obtained by 16S amplicon sequencing was used to identify differentially distributed bacterial taxa between AM-affected horses and healthy co-grazers. Fecal microbial diversity and evenness were significantly (p < 0.001) higher in AM-affected horses as compared with their non-affected co-grazers. The relative abundance of families Ruminococcaceae, Christensenellaceae and Akkermansiaceae were higher (p ≤ 0.001) whereas those of the Lachnospiraceae (p = 0.0053), Bacteroidales (p < 0.0001) and Clostridiales (p = 0.0402) were lower in horses with AM, especially in those with a poor prognosis. While significant shifts were observed, it is still unclear whether they result from the disease or might be involved in the onset of disease pathogenesis.
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Affiliation(s)
- Christina Wimmer-Scherr
- Equine Clinical Department, Faculty of Veterinary Medicine, Bât. B41, Sart Tilman, University of Liège, 4000 Liège, Belgium; (C.W.-S.); (H.A.)
- Fundamental and Applied Research for Animals & Health (FARAH), Faculty of Veterinary Medicine, Sart Tilman, University of Liège, 4000 Liège, Belgium; (B.T.); (B.R.); (D.V.); (G.D.)
| | - Bernard Taminiau
- Fundamental and Applied Research for Animals & Health (FARAH), Faculty of Veterinary Medicine, Sart Tilman, University of Liège, 4000 Liège, Belgium; (B.T.); (B.R.); (D.V.); (G.D.)
- Department of Food Sciences–Microbiology, Faculty of Veterinary Medicine, University of Liège, Avenue de Cureghem 10, Bât. B43b, 4000 Liège, Belgium
| | - Benoît Renaud
- Fundamental and Applied Research for Animals & Health (FARAH), Faculty of Veterinary Medicine, Sart Tilman, University of Liège, 4000 Liège, Belgium; (B.T.); (B.R.); (D.V.); (G.D.)
- Department of Functional Sciences, Pharmacology and Toxicology, Faculty of Veterinary Medicine, Bât. B41, Sart Tilman, University of Liège, 4000 Liège, Belgium
| | - Gunther van Loon
- Large Animal Internal Medicine, Gent University, 9820 Gent, Belgium;
| | | | - Dominique Votion
- Fundamental and Applied Research for Animals & Health (FARAH), Faculty of Veterinary Medicine, Sart Tilman, University of Liège, 4000 Liège, Belgium; (B.T.); (B.R.); (D.V.); (G.D.)
| | - Hélène Amory
- Equine Clinical Department, Faculty of Veterinary Medicine, Bât. B41, Sart Tilman, University of Liège, 4000 Liège, Belgium; (C.W.-S.); (H.A.)
- Fundamental and Applied Research for Animals & Health (FARAH), Faculty of Veterinary Medicine, Sart Tilman, University of Liège, 4000 Liège, Belgium; (B.T.); (B.R.); (D.V.); (G.D.)
| | - Georges Daube
- Fundamental and Applied Research for Animals & Health (FARAH), Faculty of Veterinary Medicine, Sart Tilman, University of Liège, 4000 Liège, Belgium; (B.T.); (B.R.); (D.V.); (G.D.)
- Department of Food Sciences–Microbiology, Faculty of Veterinary Medicine, University of Liège, Avenue de Cureghem 10, Bât. B43b, 4000 Liège, Belgium
| | - Carla Cesarini
- Equine Clinical Department, Faculty of Veterinary Medicine, Bât. B41, Sart Tilman, University of Liège, 4000 Liège, Belgium; (C.W.-S.); (H.A.)
- Fundamental and Applied Research for Animals & Health (FARAH), Faculty of Veterinary Medicine, Sart Tilman, University of Liège, 4000 Liège, Belgium; (B.T.); (B.R.); (D.V.); (G.D.)
- Correspondence:
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21
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Cooke CG, Gibb Z, Harnett JE. The Safety, Tolerability and Efficacy of Probiotic Bacteria for Equine Use. J Equine Vet Sci 2021; 99:103407. [PMID: 33781424 DOI: 10.1016/j.jevs.2021.103407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 10/17/2020] [Accepted: 02/03/2021] [Indexed: 12/14/2022]
Abstract
Probiotic bacteria are used widely as nutritional supplements and treatment interventions in the management of livestock and companion animals. The aim of this review is to summarize the current evidence reporting on the safety, tolerability and efficacy of probiotic bacteria use in horses. An online search of five databases for studies reporting on the use of probiotic bacteria use in horses which were either healthy or had a gastrointestinal or extraintestinal disease was conducted. A total of 18 articles were eligible for full review. No clear benefits were identified to support supplementation of equids with probiotic bacteria to improve starch and fiber digestion, nor for the treatment of colic or prevention of salmonellosis. Conflicting results were seen with the management of scouring in neonatal foals. Exacerbation of diarrhea and additional adverse events were reported in response to the administration of high doses of novel probiotic bacterial species. Probiotic bacteria given to exercising horses, improved aerobic fitness and stamina. The majority of probiotic bacterial species used in equine studies are bacterial species commonly used for human consumption and indigenous to the human gastrointestinal microbiota. There is a paucity of evidence to support the use of probiotic bacteria in the health maintenance and disease management of horses. While there are unclear and conflicting results associated with probiotic bacteria use for gastrointestinal conditions in both horses and foals, the administration of multistrain bacterial formulations to increase stamina in exercising horses shows promise.
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Affiliation(s)
- C Giselle Cooke
- The University of Sydney, Faculty of Medicine and Health, School of Pharmacy, Sydney, NSW, Australia.
| | - Zamira Gibb
- Priority Research Centre in Reproductive Science, School of Environmental and Life Sciences, Faculty of Science, The University of Newcastle, Callaghan, NSW, Australia
| | - Joanna E Harnett
- The University of Sydney, Faculty of Medicine and Health, School of Pharmacy, Sydney, NSW, Australia
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22
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Xing J, Liu G, Zhang X, Bai D, Yu J, Li L, Wang X, Su S, Zhao Y, Bou G, Dugarjaviin M. The Composition and Predictive Function of the Fecal Microbiota Differ Between Young and Adult Donkeys. Front Microbiol 2020; 11:596394. [PMID: 33343537 PMCID: PMC7744375 DOI: 10.3389/fmicb.2020.596394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 11/05/2020] [Indexed: 02/01/2023] Open
Abstract
The community of microorganisms inhabiting the gastrointestinal tract of monogastric herbivores played critical roles in the absorption of nutrients and keeping the host healthy. However, its establishment at different age groups has not been quantitatively and functionally examined. The knowledge of microbial colonization and its function in the intestinal tract of different-age donkeys is still limited. By applying the V3–V4 region of the bacterial 16S rRNA gene and functional prediction on fecal samples from different-age donkeys, we characterized the gut microbiota during the different age groups. In contrast to the adult donkeys, the gut microbiota diversity and richness of the young donkeys showed significantly less resemblance. The microbial data showed that diversity and richness increased with age, but a highly individual variation of microbial composition was observed at month 1. Principal coordinate analysis (PCoA) revealed a significant difference across five time points in the feces. The abundance of Bacteroides, Lactobacillus, and Odoribacter tended to decrease, while the proportion of Streptococcus was significantly increased with age. For functional prediction, the relative abundance of pathways had a significant difference in the feces across different age groups, for example, Terpenoids and Polyketides and Folding, Sorting, and Degradation (P < 0.05 or P < 0.01). The analysis of beta diversity (PCoA and LEfSe) and microbial functions predicted with PICRUSt (NSTIs) clearly divided the donkeys into foals (≤3 months old) and adults (≥7 months old). Microbial community composition and structure had distinctive features at each age group, in accordance with functional stability of the microbiota. Our findings established a framework for understanding the composition and function of the fecal microbiota to differ between young and adult donkeys.
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Affiliation(s)
- Jingya Xing
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, College of Animal Science, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, China
| | - Guiqin Liu
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, College of Animal Science, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, China.,College of Agronomy, Shandong Engineering Technology Research Center for Efficient Breeding and Ecological Feeding of Black Donkey, Shandong Donkey Industry Technology Collaborative Innovation Center, Liaocheng University, Liaocheng, China
| | - Xinzhuang Zhang
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, College of Animal Science, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, China
| | - Dongyi Bai
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, College of Animal Science, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, China
| | - Jie Yu
- National Engineering Research Center for Gelatin-based Traditional Chinese Medicine, Dong-E-E-Jiao Co., Ltd., Liaocheng, China
| | - Lanjie Li
- College of Agronomy, Shandong Engineering Technology Research Center for Efficient Breeding and Ecological Feeding of Black Donkey, Shandong Donkey Industry Technology Collaborative Innovation Center, Liaocheng University, Liaocheng, China
| | - Xisheng Wang
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, College of Animal Science, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, China
| | - Shaofeng Su
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, College of Animal Science, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, China
| | - Yiping Zhao
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, College of Animal Science, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, China
| | - Gerelchimeg Bou
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, College of Animal Science, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, China
| | - Manglai Dugarjaviin
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, College of Animal Science, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, China
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23
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Liu Y, Bailey KE, Dyall-Smith M, Marenda MS, Hardefeldt LY, Browning GF, Gilkerson JR, Billman-Jacobe H. Faecal microbiota and antimicrobial resistance gene profiles of healthy foals. Equine Vet J 2020; 53:806-816. [PMID: 33030244 DOI: 10.1111/evj.13366] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 09/02/2020] [Accepted: 09/20/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND The human and domestic animal faecal microbiota can carry various antimicrobial resistance genes (ARGs), especially if they have been exposed to antimicrobials. However, little is known about the ARG profile of the faecal microbiota of healthy foals. A high-throughput qPCR array was used to detect ARGs in the faecal microbiota of healthy foals. OBJECTIVES To characterise the faecal microbiota and ARG profiles in healthy Australian foals aged less than 1 month. STUDY DESIGN Observational study. METHODS The faecal microbiota and ARG profiles of 37 Thoroughbred foals with no known gastrointestinal disease or antimicrobial treatment were determined using 16S rRNA gene sequencing and a high-throughput ARG qPCR array. Each foal was sampled on one occasion. RESULTS Firmicutes and Bacteroidetes were dominant in the faecal microbiota. Foals aged 1-2 weeks had significantly lower microbiota richness than older foals. Tetracycline resistance genes were the most common ARGs in the majority of foals, regardless of age. ARGs of high clinical concern were rarely detected in the faeces. The presence of ARGs was associated with the presence of class I integron genes. MAIN LIMITATIONS Samples were collected for a case-control study so foals were not sampled longitudinally, and thus the development of the microbiota as individual foals aged could not be proven. The history of antimicrobial treatment of the dams was not collected and may have affected the microbiota of the foals. CONCLUSION The ARGs in foal faeces varied concomitantly with age-related microbiota shifts. The high abundance of tetracycline resistance genes was likely due to the dominance of Bacteroides spp.
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Affiliation(s)
- Yuhong Liu
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, University of Melbourne, Melbourne, Australia
| | - Kirsten E Bailey
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, University of Melbourne, Melbourne, Australia.,National Centre for Antimicrobial Stewardship, Peter Doherty Institute, Melbourne, Australia
| | - Michael Dyall-Smith
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, University of Melbourne, Melbourne, Australia
| | - Marc S Marenda
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, University of Melbourne, Melbourne, Australia
| | - Laura Y Hardefeldt
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, University of Melbourne, Melbourne, Australia.,National Centre for Antimicrobial Stewardship, Peter Doherty Institute, Melbourne, Australia
| | - Glenn F Browning
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, University of Melbourne, Melbourne, Australia.,National Centre for Antimicrobial Stewardship, Peter Doherty Institute, Melbourne, Australia
| | - James R Gilkerson
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, University of Melbourne, Melbourne, Australia
| | - Helen Billman-Jacobe
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, University of Melbourne, Melbourne, Australia.,National Centre for Antimicrobial Stewardship, Peter Doherty Institute, Melbourne, Australia
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24
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Zhao F, Jiang G, Ji C, Zhang Z, Gao W, Feng P, Li H, Li M, Liu H, Liu G, Magalhaes HB, Li J. Effects of long-distance transportation on blood constituents and composition of the nasal microbiota in healthy donkeys. BMC Vet Res 2020; 16:338. [PMID: 32933535 PMCID: PMC7493398 DOI: 10.1186/s12917-020-02563-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 09/08/2020] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND This study aims to determine the effects of transportation on the nasal microbiota of healthy donkeys using 16S rRNA sequencing. RESULTS Deep nasal swabs and blood were sampled from 14 donkeys before and after 21 hours' long-distance transportation. The values of the plasma hormone (cortisol (Cor), adrenocorticotrophic hormone (ACTH)), biochemical indicators (total protein (TP), albumin (ALB), creatinine (CREA), lactic dehydrogenase (LDH), aspartate transaminase (AST), creatine kinase (CK), blood urea (UREA), plasma glucose (GLU)) and blood routine indices (white blood cell (WBC), lymphocyte (LYM), neutrophil (NEU), red blood cell (RBC), hemoglobin (HGB)) were measured. 16S rRNA sequencing was used to assess the nasal microbiota, including alpha diversity, beta diversity, and phylogenetic structures. Results showed that levels of Cor, ACTH, and heat-shock protein 90 (HSP90) were significantly increased (p < 0.05) after long-distance transportation. Several biochemical indicators (AST, CK) and blood routine indices (Neu, RBC, and HGB) increased markedly (p < 0.05), but the LYM decreased significantly (p < 0.05). Nine families and eight genera had a mean relative abundance over 1%. The predominant phyla in nasal microbiota after and before transportation were Proteobacteria, Firmicutes, Actinobacteria, and Bacteroidetes. Transportation stress induced significant changes in terms of nasal microbiota structure compared with those before transportation based on principal coordinate analysis (PCoA) coupled with analysis of similarities (ANOSIM) (p < 0.05). Among these changes, a notably gain in Proteobacteria and loss in Firmicutes at the phylum level was observed. CONCLUSIONS These results suggest transportation can cause stress to donkeys and change the richness and diversity of nasal microbiota. Further studies are required to understand the potential effect of these microbiota changes on the development of donkey respiratory diseases.
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Affiliation(s)
- Fuwei Zhao
- College of Veterinary Medicine, Yangzhou University, 225009, Yangzhou, P.R. China. .,National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, 78 E-Jiao Street Donge County, Liaocheng, 252201, Shandong Province, China.
| | - Guimiao Jiang
- National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, 78 E-Jiao Street Donge County, Liaocheng, 252201, Shandong Province, China.,Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, 110866, Shenyang, China
| | - Chuanliang Ji
- National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, 78 E-Jiao Street Donge County, Liaocheng, 252201, Shandong Province, China
| | - Zhiping Zhang
- The College of Animal Science and Veterinary Medicine, Henan Agricultural University, 450002, Zhengzhou, China
| | - Weiping Gao
- National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, 78 E-Jiao Street Donge County, Liaocheng, 252201, Shandong Province, China
| | - Peixiang Feng
- National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, 78 E-Jiao Street Donge County, Liaocheng, 252201, Shandong Province, China
| | - Haijing Li
- National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, 78 E-Jiao Street Donge County, Liaocheng, 252201, Shandong Province, China
| | - Min Li
- National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, 78 E-Jiao Street Donge County, Liaocheng, 252201, Shandong Province, China
| | - Haibing Liu
- National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, 78 E-Jiao Street Donge County, Liaocheng, 252201, Shandong Province, China
| | - Guiqin Liu
- College of Agronomy, Shandong Engineering Technology Research Center for Efficient Breeding and Ecological Feeding of Black Donkey, Liaocheng University, Shandong Donkey Industry Technology Collaborative Innovation Center, Liaocheng, China
| | - Humberto B Magalhaes
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Sp, 18618-681, Botucatu, Brazil
| | - Jianji Li
- College of Veterinary Medicine, Yangzhou University, 225009, Yangzhou, P.R. China.
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Tong Q, Cui LY, Du XP, Hu ZF, Bie J, Xiao JH, Wang HB, Zhang JT. Comparison of Gut Microbiota Diversity and Predicted Functions Between Healthy and Diseased Captive Rana dybowskii. Front Microbiol 2020; 11:2096. [PMID: 32983063 PMCID: PMC7490342 DOI: 10.3389/fmicb.2020.02096] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 08/10/2020] [Indexed: 01/26/2023] Open
Abstract
The gut microbiota plays a key role in host health, and disruptions to gut bacterial homeostasis can cause disease. However, the effect of disease on gut microbiota assembly remains unclear and gut microbiota-based predictions of health status is a promising yet poorly established field. Using Illumina high-throughput sequencing technology, we compared the gut microbiota between healthy (HA and HB) and diarrhoeic (DS) Rana dybowskii groups and analyzed the functional profiles through a phylogenetic investigation of communities by reconstruction of unobserved states (PICRUSt) analysis. In addition, we estimated the correlation between gut microbiota structures and predicted the functional compositions. The results showed significant differences in the phylogenetic diversity (Pd), Shannon, and observed richness (Sobs) indices between the DS and HB groups, with significant differences observed in the gut microbiota composition between the DS group and the HA and HB groups. Linear discriminant analysis (LDA) effect size (LEfSe) results revealed that Proteobacteria were significantly enriched in the DS group; Bacteroidetes were significantly enriched in the HA and HB groups; and Aeromonas, Citrobacter, Enterococcus, Hafnia-Obesumbacterium, Morganella, Lactococcus, Providencia, Vagococcus, and Staphylococcus were significantly enriched in the DS group. Venn diagrams revealed that there were many more unique genera in the DS group than the HA and HB groups. Among 102 sensitive species selected using the indicator method, 33 indicated a healthy status and 69 (e.g., Acinetobacter, Aeromonas, Legionella, Morganella, Proteus, Providencia, Staphylococcus, and Vagococcus) indicated a diseased status. There was a significant and positive association between the composition and functional composition of the gut microbiota, thus indicating low functional redundancy of the frog gut bacterial community. Rana dybowskii disease was associated with changes in the gut microbiota, which subsequently disrupted bacterial-mediated functions. The results of this study can aid in revealing the effect of the R. dybowskii gut microbiota on host health and provide a basis for elucidating the mechanism of the occurrence of R. dybowskii disease.
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Affiliation(s)
- Qing Tong
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Jiamusi Branch of Heilongjiang Academy of Forestry Sciences, Jiamusi, China
| | - Li-Yong Cui
- Jiamusi Branch of Heilongjiang Academy of Forestry Sciences, Jiamusi, China
| | - Xiao-Peng Du
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Zong-Fu Hu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Jia Bie
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Jian-Hua Xiao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Hong-Bin Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Jian-Tao Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
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26
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Luminal and Mucosal Microbiota of the Cecum and Large Colon of Healthy and Diarrheic Horses. Animals (Basel) 2020; 10:ani10081403. [PMID: 32806591 PMCID: PMC7460328 DOI: 10.3390/ani10081403] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 12/17/2022] Open
Abstract
Simple Summary Acute diarrhea (colitis) is a major problem in adult horses and the role of the intestinal bacteria (microbiota) is still poorly understood in this species. The aim of this study was to compare the mucosal and luminal content microbiota of the cecum and colon of healthy and diarrheic horses. We concluded that microbial dysbiosis (changes in the normal microbiota composition) occurs in horses with colitis at different levels of the intestinal tract and microbiota composition is different between the mucosa and luminal content of diarrheic horses. Changes in species associated with dysbiosis could be used in the future for disease diagnosis, prognosis and treatment of equine colitis. Abstract The aim of this study was to compare the mucosal and luminal content microbiota of the cecum and colon of healthy and diarrheic horses. Marked differences in the richness and in the community composition between the mucosal and luminal microbiota of the cecum and large colon of horses with colitis were observed. Microbial dysbiosis occurs in horses with colitis at different levels of the intestinal tract, and microbiota composition is different between the mucosa and luminal content of diarrheic horses. The changes in some key taxa associated with dysbiosis in the equine intestinal microbiota, such as Escherichia, Fusobacterium and Lactobacillus, deserve further inquiry in order to determine their utility for disease diagnosis and treatment.
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27
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Wang B, Deng B, Yong F, Zhou H, Qu C, Zhou Z. Comparison of the fecal microbiomes of healthy and diarrheic captive wild boar. Microb Pathog 2020; 147:104377. [PMID: 32653436 DOI: 10.1016/j.micpath.2020.104377] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 05/20/2020] [Accepted: 07/02/2020] [Indexed: 12/16/2022]
Abstract
Diarrhea caused by Enterotoxigenic Escherichia coli (ETEC) is one of the most common clinical diseases observed in captive wild boars, is usually caused by an imbalance in the gut microbiome, and is responsible for piglets significant mortality. However, little research has been undertaken into the structure and function of the intestinal microbial communities in wild boar with diarrhea influenced by enterotoxigenic E. coli. In this study, fecal samples were collected and 16S-rRNA gene sequencing was used to compare the intestinal microbiome of healthy captive wild boar and wild boar with diarrhea on the same farm. We found that the intestinal microbial diversity of healthy wild boar (HWB) was relatively high, while that of diarrheic wild boar (DWB) was significantly lower. Line Discriminant Analysis Effect Size showed that at the genus level, the abundance of Escherichia-Shigella and Fusobacterium was significantly higher in DWB. Phylogenetic Investigation of Communities by Reconstruction of Unobserved States analysis showed that the expression of genes in pathways including infectious diseases: bacterial, metabolism of amino acids, membrane transport, and signal transduction was significantly higher in DWB. In summary, this study provides a theoretical basis for the design of appropriate means of diarrhea treatment in captive wild boar.
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Affiliation(s)
- Bi Wang
- Wildlife Resource College, Northeast Forestry University, Harbin, China
| | - Bo Deng
- Livestock Service Center of Wujia Town, Rongchang District, Chongqing, China
| | - Fan Yong
- Nanjing Institute of Environmental Sciences of Ministry of Ecology and Environment, Nanjing, China
| | - Huixia Zhou
- Shehong Agricultural Product Quality and Safety Inspection Station, Suining, China
| | - Chunpu Qu
- School of Forestry, Northeast Forestry University, Harbin, China.
| | - Zhengyan Zhou
- Liaoning Key Laboratory of Urban Integrated Pest Management and Ecological Security, College of Life Science and Bioengineering, Shenyang University, Shenyang, China; Institute of Herpetology, Shenyang Normal University, Shenyang, China.
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28
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Schoster A, Weese JS, Gerber V, Nicole Graubner C. Dysbiosis is not present in horses with fecal water syndrome when compared to controls in spring and autumn. J Vet Intern Med 2020; 34:1614-1621. [PMID: 32588473 PMCID: PMC7379055 DOI: 10.1111/jvim.15778] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 03/24/2020] [Accepted: 03/24/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Fecal water syndrome (FWS) is long-standing and common in horses, particularly in central Europe. No large epidemiological data sets exist, and the cause remains elusive. Dysbiosis could play a role in pathogenesis. OBJECTIVES To evaluate whether dysbiosis is present in horses with FWS when compared to stable-matched control horses in spring and autumn. ANIMALS Fecal samples were collected from horses with FWS (n = 16; 9 mares, 7 geldings) and controls (n = 15; 8 mares, 7 geldings). METHODS The bacterial microbiome of samples collected in spring and autumn of 2016 was analyzed using high-throughput sequencing. Differences in relative abundance of bacterial taxa, alpha diversity, and beta diversity indices were assessed between horses with FWS and controls based on season. RESULTS Differences in microbial community composition based on time point and health status were not observed on any taxonomic level. Limited differences were seen on linear discriminant analysis effect size analysis. No difference in alpha diversity indices was observed including richness, diversity based on health status, or time point. No effect of health status on microbial community membership structure was observed. CONCLUSIONS AND CLINICAL IMPORTANCE Limited differences were found in the bacterial microbiota of horses with and without FWS, regardless of season. Further research is needed to elucidate the role of microbiota in the development of FWS.
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Affiliation(s)
| | - J. Scott Weese
- University of Guelph, University of GuelphGuelphOntarioCanada
| | - Vinzenz Gerber
- Vetsuisse Faculty, University of BernDepartment of Veterinary MedicineBernSwitzerland
| | - Claudia Nicole Graubner
- Equine Clinic ‐ Vetsuisse Faculty, University of BernDepartment of Veterinary MedicineBerneSwitzerland
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Paßlack N, Vahjen W, Zentek J. Impact of Dietary Cellobiose on the Fecal Microbiota of Horses. J Equine Vet Sci 2020; 91:103106. [PMID: 32684251 DOI: 10.1016/j.jevs.2020.103106] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 04/21/2020] [Accepted: 04/21/2020] [Indexed: 11/24/2022]
Abstract
Cellobiose is a disaccharide with potential prebiotic effects, as demonstrated in different animal species, but not yet in horses. It was, therefore, the aim of the present study to evaluate the impact of dietary cellobiose on the fecal microbiota of horses. Eight healthy adult horses and two ponies were included in this study. The animals received a diet without or with 10 g and 20 g cellobiose per day for 14 days each. At the end of the feeding periods, fresh fecal samples were collected to measure bacterial metabolites and the microbial composition. For the microbiota analysis, 16S rRNA gene sequencing was used. Cellobiose was well accepted and tolerated by the animals. The lowest fecal concentrations of D-lactate, propionic acid, i-valeric acid, and total short-chain fatty acids were measured at the dose 10 g cellobiose per horse per day (quadratic effect: P < .05). A dose-dependent increase of the relative abundance of Firmicutes (P = .049), Coriobacteriales (P < .001), and Clostridium (P = .031) could be detected. In addition, a dose-dependent decrease of the relative abundance of Bacteroidetes (P = .035) was observed. In conclusion, the increase of Coriobacteriales and Clostridium indicates a bacterial fermentation of cellobiose in the equine intestine, as members of both groups exert saccharolytic activity. As clostridia have previously been assumed to be a key component of the intestinal microbiota in horses, the observed increase of Clostridium in the feces might indicate beneficial and potentially prebiotic effects of cellobiose in horses. However, this finding requires further investigation, particularly with regard to the Clostridium species that have been promoted by dietary cellobiose.
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Affiliation(s)
- Nadine Paßlack
- Department of Veterinary Medicine, Institute of Animal Nutrition, Freie Universität Berlin, Berlin, Germany.
| | - Wilfried Vahjen
- Department of Veterinary Medicine, Institute of Animal Nutrition, Freie Universität Berlin, Berlin, Germany
| | - Jürgen Zentek
- Department of Veterinary Medicine, Institute of Animal Nutrition, Freie Universität Berlin, Berlin, Germany
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30
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Garber A, Hastie P, Murray JA. Factors Influencing Equine Gut Microbiota: Current Knowledge. J Equine Vet Sci 2020; 88:102943. [PMID: 32303307 DOI: 10.1016/j.jevs.2020.102943] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 01/23/2020] [Accepted: 01/23/2020] [Indexed: 12/21/2022]
Abstract
Gastrointestinal microbiota play a crucial role in nutrient digestion, maintaining animal health and welfare. Various factors may affect microbial balance often leading to disturbances that may result in debilitating conditions such as colic and laminitis. The invention of next-generation sequencing technologies and bioinformatics has provided valuable information on the effects of factors influencing equine gut microbiota. Among those factors are nutrition and management (e.g., diet, supplements, exercise), medical substances (e.g., antimicrobials, anthelmintics, anesthetics), animal-related factors (breed and age), various pathological conditions (colitis, diarrhea, colic, laminitis, equine gastric ulcer syndrome), as well as stress-related factors (transportation and weaning). The aim of this review is to assimilate current knowledge on equine microbiome studies, focusing on the effect of factors influencing equine gastrointestinal microbiota. Decrease in microbial diversity and richness leading to decrease in stability; decrease in Lachnospiraceae and Ruminococcaceae family members, which contribute to gut homeostasis; increase in Lactobacillus and Streptococcus; decrease in lactic acid utilizing bacteria; decrease in butyrate-producing bacteria that have anti-inflammatory properties may all be considered as a negative change in equine gut microbiota. Shifts in Firmicutes and Bacteroidetes have often been observed in the literature in response to certain treatments or when describing healthy and unhealthy animals; however, these shifts are inconsistent. It is time to move forward and use the knowledge now acquired to start manipulating the microbiota of horses.
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Affiliation(s)
- Anna Garber
- School of Veterinary Medicine, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK.
| | - Peter Hastie
- School of Veterinary Medicine, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
| | - Jo-Anne Murray
- School of Veterinary Medicine, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
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31
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Kauter A, Epping L, Semmler T, Antao EM, Kannapin D, Stoeckle SD, Gehlen H, Lübke-Becker A, Günther S, Wieler LH, Walther B. The gut microbiome of horses: current research on equine enteral microbiota and future perspectives. Anim Microbiome 2019; 1:14. [PMID: 33499951 PMCID: PMC7807895 DOI: 10.1186/s42523-019-0013-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 09/09/2019] [Indexed: 12/26/2022] Open
Abstract
Understanding the complex interactions of microbial communities including bacteria, archaea, parasites, viruses and fungi of the gastrointestinal tract (GIT) associated with states of either health or disease is still an expanding research field in both, human and veterinary medicine. GIT disorders and their consequences are among the most important diseases of domesticated Equidae, but current gaps of knowledge hinder adequate progress with respect to disease prevention and microbiome-based interventions. Current literature on enteral microbiomes mirrors a vast data and knowledge imbalance, with only few studies tackling archaea, viruses and eukaryotes compared with those addressing the bacterial components.Until recently, culture-dependent methods were used for the identification and description of compositional changes of enteral microorganisms, limiting the outcome to cultivatable bacteria only. Today, next generation sequencing technologies provide access to the entirety of genes (microbiome) associated with the microorganisms of the equine GIT including the mass of uncultured microbiota, or "microbial dark matter".This review illustrates methods commonly used for enteral microbiome analysis in horses and summarizes key findings reached for bacteria, viruses and fungi so far. Moreover, reasonable possibilities to combine different explorative techniques are described. As a future perspective, knowledge expansion concerning beneficial compositions of microorganisms within the equine GIT creates novel possibilities for early disorder diagnostics as well as innovative therapeutic approaches. In addition, analysis of shotgun metagenomic data enables tracking of certain microorganisms beyond species barriers: transmission events of bacteria including pathogens and opportunists harboring antibiotic resistance factors between different horses but also between humans and horses will reach new levels of depth concerning strain-level distinctions.
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Affiliation(s)
- Anne Kauter
- Advanced Light and Electron Microscopy (ZBS-4), Robert Koch Institute, Seestraße 10, 13353, Berlin, Germany
| | - Lennard Epping
- Microbial Genomics (NG1), Robert Koch Institute, Berlin, Germany
| | - Torsten Semmler
- Microbial Genomics (NG1), Robert Koch Institute, Berlin, Germany
| | | | - Dania Kannapin
- Equine Clinic, Surgery and Radiology, Freie Universität Berlin, Berlin, Germany
| | - Sabita D Stoeckle
- Equine Clinic, Surgery and Radiology, Freie Universität Berlin, Berlin, Germany
| | - Heidrun Gehlen
- Equine Clinic, Surgery and Radiology, Freie Universität Berlin, Berlin, Germany
| | - Antina Lübke-Becker
- Institute of Microbiology and Epizootics, Centre for Infection Medicine, Freie Universität Berlin, Berlin, Germany
| | - Sebastian Günther
- Pharmaceutical Biology Institute of Pharmacy, Universität Greifswald, Greifswald, Germany
| | | | - Birgit Walther
- Advanced Light and Electron Microscopy (ZBS-4), Robert Koch Institute, Seestraße 10, 13353, Berlin, Germany.
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32
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Lindenberg F, Krych L, Kot W, Fielden J, Frøkiær H, van Galen G, Nielsen DS, Hansen AK. Development of the equine gut microbiota. Sci Rep 2019; 9:14427. [PMID: 31594971 PMCID: PMC6783416 DOI: 10.1038/s41598-019-50563-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 09/09/2019] [Indexed: 02/06/2023] Open
Abstract
Shortly after birth the mammalian gut is colonized, by a transient microbiota, highly susceptible to environment and diet, that eventually stabilizes and becomes the resident gut microbiota. In a window of opportunity during the colonization, oral tolerance is established towards resident bacteria. In this study, the development of the equine gut microbiota was investigated in ten foals from parturition until post weaning. We found great differences in the core species of the gut microbiota composition between time-matched samples on Day 7 and 20 post-partum. Between day 20 and Day 50 post-partum, we saw the gut microbiota became increasingly dominated by fiber fermenting species. After Day 50, no significant changes in species abundance were observed. Gene expression analysis of pro- and anti-inflammatory cytokines in the blood revealed no significant changes before and after weaning. In summary, relative stability of the gut microbiota was reached within 50 days post-partum and, weaning did not have a major impact on the microbial composition.
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Affiliation(s)
- F Lindenberg
- Brogaarden Aps, Copenhagen, Denmark. .,Faculty of Health and Medical Sciences, Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - L Krych
- Faculty of Sciences, Department of Food Science, University of Copenhagen, Copenhagen, Denmark
| | - W Kot
- Department of Environmental Sciences, Aarhus University, København, Denmark
| | | | - H Frøkiær
- Faculty of Health and Medical Sciences, Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - G van Galen
- Faculty of Health and Medical Sciences, Department of Veterinary Clinical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - D S Nielsen
- Faculty of Sciences, Department of Food Science, University of Copenhagen, Copenhagen, Denmark
| | - A K Hansen
- Faculty of Health and Medical Sciences, Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
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33
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Dysbiosis associated with acute helminth infections in herbivorous youngstock - observations and implications. Sci Rep 2019; 9:11121. [PMID: 31366962 PMCID: PMC6668452 DOI: 10.1038/s41598-019-47204-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 07/11/2019] [Indexed: 02/08/2023] Open
Abstract
A plethora of data points towards a role of the gastrointestinal (GI) microbiota of neonatal and young vertebrates in supporting the development and regulation of the host immune system. However, knowledge of the impact that infections by GI helminths exert on the developing microbiota of juvenile hosts is, thus far, limited. This study investigates, for the first time, the associations between acute infections by GI helminths and the faecal microbial and metabolic profiles of a cohort of equine youngstock, prior to and following treatment with parasiticides (ivermectin). We observed that high versus low parasite burdens (measured via parasite egg counts in faecal samples) were associated with specific compositional alterations of the developing microbiome; in particular, the faecal microbiota of animals with heavy worm infection burdens was characterised by lower microbial richness, and alterations to the relative abundances of bacterial taxa with immune-modulatory functions. Amino acids and glucose were increased in faecal samples from the same cohort, which indicated the likely occurrence of intestinal malabsorption. These data support the hypothesis that GI helminth infections in young livestock are associated with significant alterations to the GI microbiota, which may impact on both metabolism and development of acquired immunity. This knowledge will direct future studies aimed to identify the long-term impact of infection-induced alterations of the GI microbiota in young livestock.
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Walshe N, Duggan V, Cabrera-Rubio R, Crispie F, Cotter P, Feehan O, Mulcahy G. Removal of adult cyathostomins alters faecal microbiota and promotes an inflammatory phenotype in horses. Int J Parasitol 2019; 49:489-500. [PMID: 30986403 DOI: 10.1016/j.ijpara.2019.02.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/13/2019] [Accepted: 02/24/2019] [Indexed: 12/19/2022]
Abstract
The interactions between parasitic helminths and gut microbiota are considered to be an important, although as yet incompletely understood, factor in the regulation of immunity, inflammation and a range of diseases. Infection with intestinal helminths is ubiquitous in grazing horses, with cyathostomins (about 50 species of which are recorded) predominating. Consequences of infection include both chronic effects, and an acute inflammatory syndrome, acute larval cyathostominosis, which sometimes follows removal of adult helminths by administration of anthelmintic drugs. The presence of cyathostomins as a resident helminth population of the equine gut (the "helminthome") provides an opportunity to investigate the effect helminth infection, and its perturbation, has on both the immune system and bacterial microbiome of the gut, as well as to determine the specific mechanisms of pathophysiology involved in equine acute larval cyathostominosis. We studied changes in the faecal microbiota of two groups of horses following treatment with anthelmintics (fenbendazole or moxidectin). We found decreases in both alpha diversity and beta diversity of the faecal microbiota at Day 7 post-treatment, which were reversed by Day 14. These changes were accompanied by increases in inflammatory biomarkers. The general pattern of faecal microbiota detected was similar to that seen in the relatively few equine gut microbiome studies reported to date. We conclude that interplay between resident cyathostomin populations and the bacterial microbiota of the equine large intestine is important in maintaining homeostasis and that disturbance of this ecology can lead to gut dysbiosis and play a role in the aetiology of inflammatory conditions in the horse, including acute larval cyathostominosis.
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Affiliation(s)
- Nicola Walshe
- School of Veterinary Medicine, Veterinary Sciences Centre, University College Dublin, Ireland
| | - Vivienne Duggan
- School of Veterinary Medicine, Veterinary Sciences Centre, University College Dublin, Ireland
| | - Raul Cabrera-Rubio
- Teagasc Food Research Centre, Moorepark, Fermoy, APC Microbiome, Ireland
| | - Fiona Crispie
- Teagasc Food Research Centre, Moorepark, Fermoy, APC Microbiome, Ireland
| | - Paul Cotter
- Teagasc Food Research Centre, Moorepark, Fermoy, APC Microbiome, Ireland
| | - Orna Feehan
- School of Veterinary Medicine, Veterinary Sciences Centre, University College Dublin, Ireland
| | - Grace Mulcahy
- School of Veterinary Medicine, Veterinary Sciences Centre, University College Dublin, Ireland.
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Tyma JF, Epstein KL, Whitfield-Cargile CM, Cohen ND, Giguère S. Investigation of effects of omeprazole on the fecal and gastric microbiota of healthy adult horses. Am J Vet Res 2019; 80:79-86. [PMID: 30605038 DOI: 10.2460/ajvr.80.1.79] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine the effects of oral omeprazole administration on the fecal and gastric microbiota of healthy adult horses. ANIMALS 12 healthy adult research horses. PROCEDURES Horses were randomly assigned to receive omeprazole paste (4 mg/kg, PO, q 24 h) or a sham (control) treatment (tap water [20 mL, PO, q 24 h]) for 28 days. Fecal and gastric fluid samples were collected prior to the first treatment (day 0), and on days 7, 28, 35, and 56. Sample DNA was extracted, and bacterial 16S rRNA gene sequences were amplified and sequenced to characterize α and β diversity and differential expression of the fecal and gastric microbiota. Data were analyzed by visual examination and by statistical methods. RESULTS Composition and diversity of the fecal microbiota did not differ significantly between treatment groups or over time. Substantial variation in gastric fluid results within groups and over time precluded meaningful interpretation of the microbiota in those samples. CONCLUSIONS AND CLINICAL RELEVANCE Results supported that omeprazole administration had no effect on fecal microbiota composition and diversity in this group of healthy adult horses. Small sample size limited power to detect a difference if one existed; however, qualitative graphic examination supported that any difference would likely have been small and of limited clinical importance. Adequate data to evaluate potential effects on the gastric microbiota were not obtained. Investigations are needed to determine the effects of omeprazole in horses with systemic disease or horses receiving other medical treatments.
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36
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Li Y, Hu X, Yang S, Zhou J, Qi L, Sun X, Fan M, Xu S, Cha M, Zhang M, Lin S, Liu S, Hu D. Comparison Between the Fecal Bacterial Microbiota of Healthy and Diarrheic Captive Musk Deer. Front Microbiol 2018; 9:300. [PMID: 29551996 PMCID: PMC5840195 DOI: 10.3389/fmicb.2018.00300] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 02/08/2018] [Indexed: 12/21/2022] Open
Abstract
Diarrhea constitutes one of the most common diseases affecting the survival of captive musk deer and is usually caused by an imbalance in intestinal microbiota. Currently, research regarding the structure and function of intestinal microbiota in diarrheic musk deer is lacking. Therefore, in the present study, high-throughput 16S-rRNA gene sequencing was used to analyze the intestinal microbiota in feces of healthy captive musk deer (HMD) (n = 8) and musk deer with mild (MMD) (n = 8), and severe (n = 5) (SMD) diarrhea to compare the difference in intestinal microbiota of musk deer under various physiological conditions. The results showed that the diversity of HMD fecal microbiota was significantly higher than that of the two diarrhea samples. β Diversity results indicated that there were extremely significant differences in bacterial communities between the HMD sample and the MMD and SMD samples. However, no significant difference was found between the two diarrhea samples. LefSe analysis showed that the degree of intestinal physiological dysfunction in musk deer was correlated with the types of major pathogens. The main pathogen in the MMD group is Escherichia-Shigella, whereas Fusobacterium is the main pathogen in the SMD group. PICRUSt functional profile prediction indicated that the intestinal microbiota disorder could also lead to changes in the abundance of genes in metabolic pathways of the immune system. Altogether, this study provides a theoretical basis for the exploration of treatments for diarrhea in captive musk deer, which is of considerable significance to the implementation of the musk deer release into the wild program.
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Affiliation(s)
- Yimeng Li
- College of Nature Conservation, Beijing Forestry University, Beijing, China
| | - Xiaolong Hu
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, China
| | - Shuang Yang
- College of Nature Conservation, Beijing Forestry University, Beijing, China
| | - Juntong Zhou
- College of Nature Conservation, Beijing Forestry University, Beijing, China
| | - Lei Qi
- College of Nature Conservation, Beijing Forestry University, Beijing, China
| | - Xiaoning Sun
- College of Nature Conservation, Beijing Forestry University, Beijing, China
| | - Mengyuan Fan
- College of Nature Conservation, Beijing Forestry University, Beijing, China
| | - Shanghua Xu
- College of Nature Conservation, Beijing Forestry University, Beijing, China
| | - Muha Cha
- College of Nature Conservation, Beijing Forestry University, Beijing, China
| | - Meishan Zhang
- College of Nature Conservation, Beijing Forestry University, Beijing, China
| | - Shaobi Lin
- Research Department, Zhangzhou Pien Tze Huang Pharmaceutical Co., Ltd., Zhangzhou, China
| | - Shuqiang Liu
- College of Nature Conservation, Beijing Forestry University, Beijing, China.,Research Department, Zhangzhou Pien Tze Huang Pharmaceutical Co., Ltd., Zhangzhou, China
| | - Defu Hu
- College of Nature Conservation, Beijing Forestry University, Beijing, China
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