长期不育的霍尔斯坦重复繁殖母牛和健康的肥沃的霍尔斯坦母牛的肠道微生物群的差异
Yui Kitagawa1, Sayoko Oishi1, Karen Koshimizu1
1Department of Animal Science, Tokyo University of Agriculture, Atsugi 243-0034, Kanagawa, Japan.
Animals : an open access journal from MDPI
|September 27, 2025
概括
肠道微生物群的组成显著影响了霍尔斯坦牛的生育能力. 在肥沃和不育的奶牛之间发现了特定的细菌差异,即使有类似的繁殖尝试,在繁殖成功中突出了肠-淋巴结核轴.
科学领域:
- 生殖生物学 生殖生物学
- 微生物组研究 微生物组研究
- 兽医科学 兽医科学 兽医科学
背景情况:
- 重复繁殖 (RB) 奶牛表现出不充分的生育能力,这给畜牧业带来了经济挑战.
- 肠道微生物群 - 淋巴腺轴越来越多地被认为是其在生殖功能中的作用.
- 了解肠道微生物对生育能力的影响对于改善生殖结果至关重要.
研究的目的:
- 为了研究肠道微生物群组成和霍尔斯坦牛的生殖表现之间的关系.
- 根据生殖尝试和怀孕结果来区分微生物特征.
- 识别特定的细菌种群和与生育或不育相关的代谢途径.
主要方法:
- 从荷尔斯坦牛中收集了便样本,根据生育状态和生殖尝试分为四组.
- 使用多样性指数 (α和β) 和LEfSe对差异丰度进行微生物群组成分析.
- 使用KEGG和MetaCyc分析预测了功能通路丰富.
主要成果:
- 在四个生育群中观察到肠道微生物群多样性的显著差异 (p < 0.05).
- 在正常怀孕组中,特定的细菌属 (例如,Bacillus,Ruminococcus) 得到了丰富.
- 在不孕 (开放) 和RB组中发现了不同的细菌群落和丰富的途径 (例如,细胞亡,氨基降解).
结论:
- 肠道微生物群的组成在正常生育的奶牛和重复繁殖不育的奶牛之间有很大的差异.
- 微生物的差异是显而易见的,即使在具有相似的生殖尝试但不同的妊娠结果的奶牛之间.
- 这些发现强调了肠道微生物群在牛生殖健康中的关键作用,并提出了生育管理的潜在目标.
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