细菌细菌和Macleaya cordata提取物调节与乳牛肠道甲排放相关的小肠微生物群
Peng Jia1,2, Li-Feng Dong1, Yan Tu3
1Institute of Feed Research, Chinese Academy of Agricultural Sciences/Sino-US Joint Lab On Nutrition and Metabolism of Ruminant/Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Beijing, 100081, People's Republic of China.
Microbiome
|October 20, 2023
概括
在奶牛中补充Bacillus subtilis (BS) 和Macleaya cordata提取物 (MCE) 减少了甲排放,通过改变肠微生物群落. 这些发现为可持续畜牧生产和气候变化缓解提供了战略.
科学领域:
- 流体微生物学 流体微生物学
- 动物营养动物营养
- 环境科学环境科学
背景情况:
- 动物牲畜是肠道甲 (CH4) 排放的重要来源.
- 以前的研究表明,Bacillus subtilis (BS) 和Macleaya cordata提取物 (MCE) 可以降低CH4并改善奶牛的牛奶产量.
研究的目的:
- 为了研究BS和MCE对乳母牛的小甲基生成的影响.
- 通过转基因组学来阐明这些补充剂对肠微生物群落的影响.
主要方法:
- 60只奶牛被分配给控制,BS或MCE饮食75天.
- 每次治疗的12头母牛的血样本使用元基因组测序进行了分析.
- 分析了微生物社区结构和相互作用.
主要成果:
- BS改变了挥发性脂肪酸的形状,降低了乙酸:酸盐的比率.
- MCE和BS降低了关键的甲原体古生物的相对丰度,包括甲生物和甲球物种.
- 饮食治疗调节了小牛肠微生物共发生网络.
结论:
- 养BS和MCE会影响小牛皮的微生物活动,提供一种减轻乳牛肠道甲排放的方法.
- 这项研究为制定减少CH4排放和提高牲畜料效率的战略提供了基础知识.
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