关联口腔抹布微生物群体与荷尔斯坦乳牛的牛奶生产指标
Joseph H Skarlupka1,2, Madison S Cox1,3, Andrew J Steinberger1,2
1Microbiology Doctoral Training Program, University of Wisconsin-Madison, Madison, Wisconsin, USA.
mSphere
|May 14, 2025
概括
口腔抹布有效捕获乳牛的微生物群落,与牛奶产量和料效率相关联. 这种非侵入性方法有助于理解微生物群.
科学领域:
- 动物科学动物科学
- 微生物学 微生物学
- 基因组学就是基因组学.
背景情况:
- 乳制品行业的目标是通过遗传学,饮食和管理来提高牛奶生产效率.
- 肠微生物组在料消化和牛奶生产效率方面发挥着至关重要的作用.
- 目前大规模的皮样本采集具有挑战性,阻碍了微生物组融入管理实践.
研究的目的:
- 评估口腔抹布作为一种非侵入性替代品,用于在乳牛中进行反动物微生物群体分析.
- 为了将口腔和反动物微生物群落与牛奶产量,牛奶中的天数以及料效率指标 (GFE和RFI) 相关联.
主要方法:
- 收集了226头奶牛的口腔抽样.
- 与牛奶产量,牛奶中的天数,总料效率 (GFE) 和剩余料摄入量 (RFI) 相关联的细菌社区数据.
- 使用片序列变体 (ASV) 进行差异丰度测试和多样性分析.
主要成果:
- 口腔抹布检测出与牛奶中的几天相关的细菌属 (P < 0.05).
- 在口腔抽样中,与初母牛的牛奶产量和牛奶中的几天相关的菌群.
- 在第二次哺乳期母牛中观察到微生物多样性的显著差异和与RFI的相关性 (P < 0.05).
结论:
- 口腔抹布是一种可行的和可扩展的代理来评估奶牛的牛微生物组.
- 通过口腔拭子进行微生物社区分析,可以揭示与关键生产和效率特征的关联.
- 这种方法支持将微生物群的见解纳入乳牛群管理,以提高效率.
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