邀请审查:反动物微生物组和牛宿主在调节料效率和甲排放中的相互作用
Ajay Badhan1, Yue Wang2, Stephanie Terry1
1Agriculture and Agri-Food Canada, Lethbridge Research and Development Centre, Lethbridge, Alberta, Canada T1J 4B1.
Journal of dairy science
|April 12, 2025
概括
肠微生物群影响牛的料效率和甲排放. 减少甲和提高料效率的策略必须考虑复杂的宿主-微生物群-饮食相互作用,以实现可持续的牛畜生产.
科学领域:
- 体微生物学和动物营养
- 环境科学和可持续农业
背景情况:
- 乳液发酵是牛的主要能量和蛋白质来源.
- 肠微生物组对宿主料效率和甲 (CH4) 排放产生了重大影响.
- 关于微生物多样性,料效率和牛中CH4排放之间的关系的现有研究提出了相互矛盾的发现.
研究的目的:
- 为了研究宿主,肠微生物组和牛的饮食之间的复杂相互作用.
- 了解改善料效率和减少肠道CH4排放的不一致性.
- 为可持续强化畜牧业生产的战略提供信息.
主要方法:
- 分析影响乳头微生物组合的因素,包括饮食,宿主遗传和生理参数.
- 对旨在重定向代谢远离CH生产的添加剂研究的审查.
- 评估微生物多样性对牛适应饮食和环境变化的能力的影响.
主要成果:
- 体微生物组的组成主要取决于饮食,但也受到宿主因素的影响.
- 添加剂可以显著减少肠道CH4排放 (30-80%),但料效率的提高是不一致的.
- 减少微生物多样性可能会阻碍牛适应不断变化的条件.
结论:
- 提高牛的料效率和减少CH4排放需要采用整体方法.
- 战略必须考虑宿主,微生物群和饮食之间的多方面的相互作用.
- 可持续的畜牧业生产需要平衡加强与环境和社会考虑.
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