在饮食蛋白质振荡过程中,小牛皮中的发酵参数和细菌群体的动力学
Kun Zhang1, Zhanwei Teng1, Qing Meng1
1College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, China.
Microorganisms
|November 27, 2024
概括
使用高蛋白和低蛋白料的振荡饮食可以改善小牛的利用率. 乳液细菌适应饮食的变化,提高营养效率比血尿素-N水平更快.
科学领域:
- 动物营养和微生物学
- 动物科学动物科学
- 胃肠道生理学 胃肠道生理学
背景情况:
- 饮食原蛋白振荡可以提高反动物的利用率.
- 关于小牛在振荡饮食期间的小牛微生物群和发酵动态的数据有限.
研究的目的:
- 调查高蛋白 (HP) 和低蛋白 (LP) 饮食波动对乳头发酵,血尿素-N和小牛的细菌多样性的影响.
- 了解肠微生物群对饮食蛋白质波动的适应性反应.
主要方法:
- 每隔两天,六只小牛被食一个振荡饮食 (HP/LP).
- 分析了乳液发酵参数,血尿素-N和乳液细菌多样性.
- 研究了特定细菌和氨- (NH3-N) 之间的相关性.
主要成果:
- 挥发性脂肪酸,NH3-N和血尿素-N度随着振荡饮食而显著变化.
- 观察到包括Prevotella_1,Selenomonadales和Lachnospiraceae在内的关键细菌种群的丰度发生显著变化.
- 与氨基酸代谢相关的代谢途径减少,而碳水化合物代谢在饮食过渡期间增加.
结论:
- 乳液发酵参数比血尿素-N度更快地适应饮食变化.
- 乳液细菌在改善利用效率方面发挥着至关重要的作用,在食食的小牛中.
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