乳头和后肠中的细菌群体结构与霍尔斯坦牛的效率有关
V M De La Guardia-Hidrogo1, H A Paz2,3
1Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS, USA.
Scientific reports
|July 3, 2023
概括
奶牛的高效率 (Neff) 与特定的肠道细菌有关. 针对小牛皮中的Prevotella和便中的Clostridia可以改善奶牛的利用率.
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:
- 乳牛的效率 (Neff) 低于最佳,导致大量的排泄.
- 胃肠道微生物组在代谢中起着关键作用,但其与Neff的特定关联尚未完全理解.
研究的目的:
- 为了研究细菌群落在皮和便和效率 (Neff) 在荷尔斯坦乳牛之间的关系.
- 为了识别与高和低Neff.相关的特定细菌物种或群体.
主要方法:
- 用平衡方法对23头荷尔斯坦牛进行了Neff的评估.
- 体和便样本中的细菌群体使用16S rRNA基因测序 (amplicon序列变异) 进行了分析.
- 分析了差异丰富的细菌种类和Neff之间的关系.
主要成果:
- 高内夫牛 (30.3%) 与低内夫牛 (22.8%) 相比,尽管摄入量相似,但排泄的气较少.
- 细菌群体的组成在Neff群之间在物种层面上有所不同.
- 体Prevotella物种与Neff正相关,而便Clostridia物种与Neff负相关.
结论:
- 乳头和便中独特的物种级细菌结构与乳牛中的分歧Neff有关.
- 针对特定的细菌群落,如Prevotella和Clostridia,提供了增强乳牛中利用的潜在策略.
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