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Variations in the fecal microbiota and their functions of Thoroughbred, Mongolian, and Hybrid horses

文献类型： 外文期刊

作者： Wen, Xiaohui 1 ; Luo, Shengjun 1 ; Lv, Dianhong 1 ; Jia, Chunling 1 ; Zhou, Xiurong 1 ; Zhai, Qi 1 ; Xi, Li 2 ; Yang, Caijuan 3 ;

作者机构： 1.Minist Agr Rural Affairs, Guangdong Acad Agr Sci, Key Lab Anim Dis Prevent Guangdong Prov, Inst Anim Hlth Sci Observat & Expt Stn Vet Drugs &, Guangzhou, Peoples R China

2.Shangqiu Normal Univ, Coll Biol & Food, Dept Anim Sci, Shangqiu, Peoples R China

3.Natl S&T Innovat Ctr Modern Agr Ind, Guangzhou, Peoples R China

关键词： 16S rRNA; breed; microbiota; diversity; fibrolytic bacteria

期刊名称：FRONTIERS IN VETERINARY SCIENCE （ 影响因子：3.471； 五年影响因子：3.821 ）

ISSN：

年卷期： 2022 年 9 卷

页码：

收录情况： SCI

摘要： The horse gut is colonized by a rich and complex microbial community that has important roles in horse physiology, metabolism, nutrition, and immune functions. Fewer across-breed variations in horse gut microbial diversity have been illustrated. In this article, the gut microbiota of Thoroughbred, Mongolian, and Hybrid horses [first filial generation (F1) of Mongolian (maternal) and Thoroughbred (paternal)] were studied by second-generation high-throughput sequencing technology. Differences in gut microbiota composition and function between breeds were determined using diversity and functional prediction analysis. The alpha diversity analysis showed that Thoroughbred horses had a more abundant and diverse gut microbiota, while the diversity of gut microbiota in Hybrid horses was intermediate between Thoroughbred and Mongolian horses. Subsequent cluster analysis showed that Hybrid horses have a microbiota composition more similar to Mongolian horses. LEfSe analysis revealed that the bacterial biomarkers for Thoroughbred horses at the family level were Prevotellaceae, Rikenellaceae, Fibrobacteraceae, p_251_o5, Lactobacillaceae, and uncultured_bacterium_o_WCHB1_41; the bacterial biomarker for Mongolian horses was Planococcaceae; and the bacterial biomarkers for Hybrid horses were Moraxellaceae, Enterobacteriaceae, and Ruminococcaceae. The functional prediction results indicated that the metabolic pathways differ significantly between the breeds. Regarding metabolism, the Hybrid horses had the lowest proportion of the carbohydrate metabolic pathways, while the energy metabolic pathway had the highest proportion. The abundance ratios of the remaining eight metabolic pathways in Hybrid horses were between Thoroughbred and Mongolian horses. In conclusion, the results of this study showed an association between horse breeds and gut microbiota.

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