完整的挤出饮食:在摄入适应过程中,马类便微生物群是如何变化的?
Bruna Caroline Franzan1, Irene da Silva Coelho2, Emilly Martins Ramos1
1Animal Science Institute, Universidade Federal Rural do Rio de Janeiro, Rio de Janeiro, Brazil.
Animal science journal = Nihon chikusan Gakkaiho
|January 8, 2026
概括
养马完全挤出饮食 (CED) 改变了便细菌和体外发酵. 当粗料被移除时,微生物多样性下降,这表明饮食依赖和料对马的肠道健康的重要性.
科学领域:
- 马类科学 马类科学
- 微生物学 微生物学
- 动物营养 动物营养
背景情况:
- 马的肠道微生物组在消化和整体健康方面发挥着至关重要的作用.
- 饮食变化显著影响马便细菌群体的组成和功能.
- 完全挤出饮食 (CED) 提供了缩的营养来源,但它们对马肠道的影响需要进一步研究.
研究的目的:
- 调查便细菌群体在过渡到完全挤出饮食 (CED) 的马匹中的适应性.
- 评估CED对马便微生物群体体体外发酵能力的影响.
- 确定食粗料,CED含量和便微生物多样性和稳定性之间的关系.
主要方法:
- 十二只头最初被食沿海的干草,然后在28天内过渡到完全干草 (HAY) 或增加CED水平 (30%,60%,100%).
- 每周收集便样本进行微生物群分析 (细菌群体组成) 和体外发酵试验.
- 针对饮食治疗的反应,分析了特定细菌类的相对丰度和整体微生物多样性的变化.
主要成果:
- 消费CED导致Fibrobacteres,Proteobacteria,Campilobacterota,Lentisphaerae和SR1的相对丰度减少.
- 在CED养后,Verrucomicrobia和Synergistetes的丰度增加.
- 便细菌的多样性保持在60%的CED,但当干草完全被撤回时显著下降,这凸显了粗的重要性.
结论:
- 马便微生物群的组成高度依赖于饮食.
- 马的微生物多样性的稳定性与饮食中的粗料的存在比与CED摄入量更强烈相关.
- 结合CED会改变微生物的丰富性,并影响能够改变体外发酵活动的细菌群体,影响后肠功能.
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