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Gut microbiota affects the estrus return of sows by regulating the metabolism of sex steroid hormones

Journal of Animal Science and Biotechnology 2024年第2期15卷 578-599页

作者： Min Liu Jia Zhang Yunyan Zhou Shuqi Xiong Mengqing Zhou Lin Wu Qin Liu Zhe Chen Hui Jiang Jiawen Yang Yuxin Liu Yaxiang Wang Congying Chen Lusheng Huang National Key Laboratory of Swine Genetic Improvement and Germplasm Innovation Jiangxi Agricultural UniversityNanchang 330045China

Background Sex hormones play important roles in the estrus return of post-weaning *** studies have demonstrated a complex and bi-directional regulation between sex hormones and gut ***,the extent to which the gut microbiota affects estrus return of post-weaning sows is largely *** In this study,we first screened 207 fecal samples from well-phenotyped sows by 16S rRNA gene sequencing and identified significant associations between microbes and estrus return of post-weaning *** metagenomic sequencing data from 85 fecal samples,we identified 37 bacterial species that were significantly associated with estrus *** returning sows were characterized by increased abundances of *** and *** and decreased abundances of ***,***,and *** changes in gut microbial composition significantly altered the functional capacity of steroid hormone biosynthesis in the gut *** results were confirmed in a validation *** changes in sex steroid hormones and related compounds were found between normal and non-return sows via metabolome *** integrated analysis of differential bacterial species,metagenome,and fecal metabolome provided evidence that normal return-associated bacterial species *** and Prevotella *** in the degradation of pregnenolone,progesterone,and testosterone,thereby promoting estrogen ***,the microbial metabolites related to sow energy and nutrient supply or metabolic disorders also showed relationships with sow estrus *** An integrated analysis of differentially abundant bacterial species,metagenome,and fecal metabolome revealed the involvement of *** and Prevotella *** sow estrus *** findings provide deep insight into the role of gut microbiota in the estrus return of post-weaning sows and the complex cross-talk between gut microbiota and sex hormones,suggesting that the manipulatio

关键词： estrus return Fecal metabolome Gut microbiota Metagenomics Sex steroid hormones Sow

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