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Identification of key bacterial populations affecting early embryonic development in cattle uterus

文献类型： 外文期刊

作者： Lyu, Chenchen 1 ; Hua, Liushuai 1 ; Shi, Qiaoting 1 ; Zhang, Zijing 1 ; Xin, Xiaoling 1 ; Chen, Fuying 1 ; Yu, Xiangdo 1 ;

作者机构： 1.Henan Acad Agr Sci, Inst Anim Husb & Vet Sci, Henan Key Lab Farm Anim Breeding & Nutr Regulat, Zhengzhou, Peoples R China

2.Biyang Ctr Anim Dis Control & Prevent, Biyang, Peoples R China

关键词： bacterial population; cattle; embryo quality; superovulation; uterus

期刊名称：ANIMAL SCIENCE JOURNAL （ 2020影响因子：1.749； 五年影响因子：1.909 ）

ISSN： 1344-3941

年卷期： 2020 年 91 卷 1 期

页码：

收录情况： SCI

摘要： Superovulation is an important animal breeding biotechnology, while the quality of embryos obtained from superovulation is unstable in cattle. The relationship between the microorganisms in the cattle uterus and embryo qualities was determined to identify the key bacterial populations affecting early embryonic development. A total of 10 Xia Nan cows underwent superovulation, we collected cervical mucus and flush samples to investigated by 16S rDNA sequencing. Results showed that there were abundant microorganisms in cervical mucus, but no obvious relationship with the quality of embryos. The clustering results of flush samples were consistent with the grouping of embryo quality. Proteobacteria accounted for more than 95% of the total bacterial community in group A with the best embryo quality (qualified embryo ratio above 0.8), and as embryo quality decreased, the Proteobacteria proportion also decreased. In contrast to the proportion of Proteobacteria, the proportions of Firmicutes and Bacteroidetes significantly increased as embryo quality decreased. For group C with the worst embryo quality, the proportions of Firmicutes and Bacteroidetes increased to 4.7 times and 12.3 times of group A, respectively. These results showed that the quantities and proportions of Firmicutes and Bacteroidetes may be related to early embryonic development in cattle.

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