独特的胃肠道微生物的饮食选择驱动着山羊的纤维利用动态
Xiaoli Zhang1,2, Rongzhen Zhong3, Jian Wu1
1State Key Laboratory of Forage Breeding-By-Design and Utilization, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, 410125, China.
Microbiome
|May 11, 2025
概括
不同的食纤维塑造了山羊的肠道微生物和新陈代谢. 缓慢发酵纤维增强纤维素分解,而快速发酵纤维通过pectin降解促进生长,影响动物健康.
科学领域:
- 动物科学动物科学
- 微生物组研究 微生物组研究
- 营养代谢 营养代谢
背景情况:
- 食纤维对于反动物的生产力和健康至关重要.
- 肠道微生物显著影响纤维利用.
- 我们对全胃肠道微生物与纤维成分相互作用的理解有限.
研究的目的:
- 为了比较快发酵 (FF) 和慢发酵 (SF) 纤维饮食下的山羊的微生物组和代谢策略.
- 从整个胃肠道的角度研究纤维成分干预措施.
- 阐明肠道微生物在调解食纤维效应中的作用.
主要方法:
- 营养分析 营养分析
- 安普利康测序的测序方法
- 大基因组测序的测序.
- 代谢分析的代谢分析
- 有FF和SF饮食的山羊模型.
主要成果:
- 富含SF饮食的纤维分解性细菌 (Fibrobacter,Ruminococcus) 和细胞质/血细胞质利用基因在和体中.
- FF饮食有利于降解点蛋白的细菌 (Prevotella) 和点酶基因,改善生长.
- 观察到明显的短链脂肪酸 (SCFA) 模式:小肠 (SF) 中的酸盐和肠 (SF) 中的丁酸盐.
结论:
- 食纤维类型在整个山羊胃肠道中诱导不同的微生物和代谢途径.
- 研究结果提供了关于不同纤维成分如何使宿主动物受益的见解.
- 微生物ATP生产和科巴胺生物合成可能会调解SF饮食的好处.
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