在牛和水牛中比较流体元基因组和CAZyme配置文件:对甲产量和流体发酵在常见饮食中的影响
Pradeep K Malik1, Shraddha Trivedi2, Atul P Kolte1
1ICAR-National Institute of Animal Nutrition and Physiology, Bangalore 560030, India.
Microorganisms
|January 23, 2024
概括
当饮食和环境固定时,宿主物种 (牛与水牛) 对乳头微生物群和甲产量的影响最小. 体微生物群落和甲排放主要受到饮食和环境的影响,而不是宿主遗传.
科学领域:
- 流体微生物学 流体微生物学
- 动物科学动物科学
- 环境科学环境科学
背景情况:
- 食动物,包括牛和水牛,是甲排放的重要来源.
- 了解影响 rumen 微生物群落和甲生产的因素对于缓解策略至关重要.
- 宿主物种,饮食和环境是影响功能的已知因素.
研究的目的:
- 为了比较牛和水牛之间的小肠微生物群体组成,甲产量,发酵和CAZyme概况.
- 确定宿主物种对这些因素的影响,同时保持饮食和环境条件不变.
- 阐明宿主物种与饮食/环境对功能和甲排放的相对贡献.
主要方法:
- 使用元基因组测序来分析体微生物群落 (细菌和古生物) 和碳水化合物活性酶 (CAZymes).
- 测量了发酵参数,甲产量,料摄入量和营养物质消化能力.
- 牛和水牛在类似的环境条件下吃同样的饮食进行了比较.
主要成果:
- 在小牛和水牛之间,在小牛微生物群落结构 (如 Bacteroidetes 和 Firmicutes 的细菌族群,如 Euryarchaeota 的古老族群和 Methanobrevibacter 等关键属) CAZyme 档案,原生动物数量,料摄入量,营养消化能力或小牛和水牛之间的小牛发酵中没有发现显著差异.
- 甲产量在两种物种之间是可比的,与类似的反发酵和微生物组成相关.
- 该研究确定了各种各样的微生物种类和CAZymes,其中GH类是最丰富的CAZyme.
结论:
- 当控制饮食和环境因素时,宿主物种似乎在塑造乳头微生物群落和甲排放方面发挥了很小的作用.
- 饮食和环境条件是乳头微生物群结构和牛和水牛甲产生的主要驱动因素.
- 需要进一步的研究来探索不同的饮食和环境的影响,以及生产力差异对这些参数的影响.
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