Longitudinal Investigation of the Gut Microbiota in Goat Kids from Birth to Postweaning

文献类型： 外文期刊

第一作者： Zhuang, Yimin

作者： Zhuang, Yimin;Chai, Jianmin;Cui, Kai;Bi, Yanliang;Diao, Qiyu;Huang, Wenqin;Zhang, Naifeng;Chai, Jianmin;Usdrowski, Hunter

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关键词： gut microbiota; goat; ruminants; ages; biogeography; temporal dynamics

期刊名称：MICROORGANISMS （ 影响因子：4.128； ）

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年卷期： 2020 年 8 卷 8 期

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收录情况： SCI

摘要： Early microbial colonization in the gut impacts animal performance and lifelong health. However, research on gut microbial colonization and development in young ruminants, especially after weaning, is currently limited. In this study, next-generation sequencing technology was performed to investigate the temporal dynamic changes of the microbial community in the jejunum and colon of goats at 1, 7, 14, 28, 42, 56, 70, and 84 days (d) of age. As age increased, significant increases in microbial diversity, including the number of Observed OTUs and the Shannon Index, were observed in both the jejunum and colon. Regarding beta diversity, significant shifts in community membership and structure from d1 to d84 were observed based on both Bray-Curtis and Jaccard distances. With increasing age, dominant genera in the jejunum shifted fromLactobacillusto unclassifiedRuminococcaceae, unclassifiedLachnospiraceaeand unclassifiedClostridialesthrough starter supplementation, whereas colonic dominant genera changed fromLactobacillusandButyricicoccus, within d1-d28, to unclassifiedRuminococcaceae, unclassifiedClostridialesandCampylobacterafter solid diet supplementation. The linear discriminant analysis (LDA) effect size (LEfSe) analysis revealed bacterial features that are stage-specific in the jejunum and colon, respectively. In the jejunum and colon, a significantly distinct structure and membership of the microbiota was observed across all ages. The growth stage-associated microbiota in each gut compartment was also identified as a marker for biogeography. Our data indicate the temporal and spatial differences of the gut microbiota in goats are important for their performance and health. Early microbial colonization can influence microbial composition in later life (e.g., post-weaning phase). This study provides insights that the temporal dynamics of gut microbiota development from newborn to post-weaning can aid in developing feeding strategies to improve goat health and production.

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