在牛乳病毒感染后,年轻小牛的便微生物变化的分析
Seon-Ho Kim1, Youyoung Choi2, Michelle A Miguel1
1Department of Animal Science and Technology, Sunchon National University, Suncheon 57922, Republic of Korea.
Veterinary sciences
|August 25, 2023
概括
牛牛轮状病毒感染小牛导致肠道失调,减少便微生物多样性并改变细菌群. 这项研究突出显示,与健康对照群相比,受感染的小牛的肠道微生物组发生了显著的变化.
科学领域:
- 兽医微生物学 兽医微生物学
- 动物健康 动物健康
- 胃肠病学 胃肠病学
背景情况:
- 牛肉轮状病毒是导致小牛腹的重要病原体.
- 肠道微生物群在动物健康和免疫力中起着至关重要的作用.
- 了解轮状病毒引起的微生物群变化对于疾病管理至关重要.
研究的目的:
- 为了研究牛肉轮状病毒感染的小牛便微生物群的变化.
- 预测感染后的肠道微生物群的功能变化.
- 为了比较健康和感染轮状病毒的小牛之间的微生物特征.
主要方法:
- 六只霍尔斯坦小牛被分为健康和感染轮状病毒的组.
- 在注射前和注射后1天和7天收集了便样本.
- 使用了16S rRNA基因扩增序列和线性差异分析效果大小 (LDA).
主要成果:
- 罗塔病毒感染倾向于在注射后1天减少细菌多样性 (α和β).
- 在细菌种群中观察到显著的差异,Enterococcus,Streptococcus和Escherichia-Shigella的增加.
- 在受感染的小牛中发现了短链脂肪酸产生细菌 (例如,Faecalibacterium,Ruminococcus) 的减少.
结论:
- 被牛轮状病毒感染的小牛表现出明显的便细菌失生症.
- 失生症的特点是微生物多样性的减少和细菌组成的改变.
- 预测的功能元基因组概况支持观察到的在感染罗塔病毒的小牛中的微生物变化.
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