后肠微生物与胡羊的料转换率和微生物纵向发育之间的关系
Dan Xu1, Jiangbo Cheng1, Deyin Zhang2
1College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China.
Journal of animal science
|September 24, 2023
概括
绵羊的后肠微生物会影响料效率. 研究人员确定了特定的微生物生物标志物和途径,如挥发性脂肪酸合成,与胡羊的料转化率有关.
科学领域:
- 动物科学动物科学
- 微生物学 微生物学
- 农业科学 农业科学
背景情况:
- 料效率对于绵羊生产至关重要,影响经济效益和环境可持续性.
- 后肠微生物发酵有助于宿主能量供应,其成分影响料效率.
- 了解羊肠道微生物为调节料效率提供了潜力.
研究的目的:
- 为了研究高和低料转换比率 (FCR) 的绵羊之间的直肠微生物组成的差异.
- 确定与胡羊的料效率相关的微生物生物标志物.
- 探索后肠微生物在影响FCR中的功能性作用.
主要方法:
- 根据从80天到180天的年龄表现,胡羊被分为高FCR和低FCR组.
- 分析了直肠微生物群落,使用了多变量分析 (PERMANOVA).
- 线性拟合分析确定了微生物生物标志物;功能丰富分析探索了微生物通路.
主要成果:
- 在高和低FCR组之间发现了直肠微生物组成的显著差异 (P <0.05).
- 确定了六种微生物生物标志物,包括Ruminobacter,Eubacterium_xylanophilum_group和Romboutsia.
- 与挥发性脂肪酸合成和炎症反应相关的微生物功能可能会影响FCR.
结论:
- 后肠微生物组成与绵羊的料效率有关.
- 特定的肠道细菌及其代谢功能是提高料效率的潜在目标.
- 哺乳期后,微生物群的组成会发生显著的变化,而哺乳期前微生物群体的影响会减少.
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