素调节高谷物饮食诱导的亚急性酸性牛肉牛的发酵和细菌群落
Wei You1,2, Haijian Cheng1,2, Xin Hu1,2
1Key Laboratory of Livestock and Poultry Multi-Omics of MARA, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China.
Microorganisms
|January 25, 2025
概括
在肉牛中补充素有效地减轻亚急性乳头酸症 (SARA),通过改善乳头 pH 和挥发性脂肪酸. 这种饮食干预也积极调节反动物细菌的多样性,为牛的健康提供了一个有希望的战略.
科学领域:
- 动物科学动物科学
- 微生物学 微生物学
- 营养科学 营养科学
背景情况:
- 亚急性反粉酸性疾病 (SARA) 是肉牛食高谷物饮食的代谢障碍,对反粉发酵和健康产生负面影响.
- 了解饮食干预对转动物微生物群的影响对于管理SARA至关重要.
研究的目的:
- 调查素补充剂对食发酵和肉牛中细菌群体结构的影响,这些细菌群体结构具有饮食诱导的SARA.
- 评估素在减轻高谷物饮食对食者健康的负面影响方面的潜力.
主要方法:
- 18 同体杂交牛被分为三个组:对照组 (CON),SARA (高谷物) 和SARA与素 (CAP).
- 该研究持续了60天,SARA通过高谷物饮食 (20:80料与缩物比率) 诱导.
- 分析了的pH值,总挥发性脂肪酸 (VFA) 和细菌α多样性 (辛普森,Ace,Chao,Shannon指数).
主要成果:
- 与SARA组相比,素补充剂 (CAP组) 显著增加了小体pH (5.40至6.36) 和减少了总VFAs (133.95至82.86 mmol/L).
- 在CAP组中,反动物细菌的α多样性增加,由较低的辛普森指数和较高的Ace,Chao和Shannon指数表明.
- 特定的细菌系被确定为SARA (例如, *Succinivibrionaceae_UCG-001*) 和素的作用 (例如, *Succiniclasticum*) 的潜在生物标志物.
结论:
- 食素补充剂有效地减轻了SARA在肉牛中的不良影响.
- 素调节杂细菌群落和发酵,表明其作为料添加剂的潜力,可以改善牛的健康和高谷物饮食的表现.
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