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在Wagyu和Holstein小牛之间对体微生物群落和功能进行比较研究

Ye Bu¹, Fang Sun², Li Liu¹

¹Institute of Animal Husbandry of Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China.

|December 4, 2025

概括

菌微生物群落在瓦格尤和霍尔斯坦小牛中发展不同. 瓦格尤小牛表现出更为动态的微生物变化和更高的多样性,而霍尔斯坦则更早地发展出稳定的代谢功能.

科学领域:

动物科学动物科学
微生物学微生物学
类动物营养类动物营养

背景情况:

体微生物群的发展对于小牛的营养和生长至关重要.
rumen 微生物群落中的特定品种差异可能会影响健康和生产力.
了解这些动态有助于优化不同牛品种的养策略.

研究的目的:

为了比较分析在Wagyu和Holstein小牛的肠微生物社区结构和功能中的动态变化.
为了研究从3到6个月大小的毛小肠微生物继承的品种特异性差异.
为了将微生物变化与对小牛发育和新陈代谢的潜在影响相关联.

主要方法:

从3-6个月的Wagyu和Holstein小牛 (每只n=5) 获得的反液的元基因组测序.
评估微生物组成 (系,属),阿尔法多样性 (Shannon,Simpson,ACE,Chao1) 和功能通路 (KEGG).
所有小牛的标准化饮食和免费获得料和水.

主要成果:

在两种品种中,主导类型的丰度随着年龄的增长而下降,在瓦格尤小牛中更为显著.
与Holsteins相比,Wagyu小牛的阿尔法多样性指数 (Shannon,ACE,Chao1) 从4-6个月的年龄开始显著更高.
在6个月时,与Holsteins相比,Wagyu小牛的新陈代谢相关基因减少,细胞和遗传处理的基因增加.

结论:

在肠微生物群的继承和功能成熟方面存在品种特定的差异.
荷尔斯坦小牛表现出更早,更稳定的小牛体新陈代谢功能.
瓦格尤小牛经历了一个更为动态的微生物选择过程,这表明了不同的发育轨迹.

关键词:

牛犊这些牛犊荷尔斯坦州荷尔斯坦州转基因组学是指转基因组学.血液中的微生物群.瓦格尤瓦格尤 (Wagyu Wagyu) 是一个叫做瓦格尤的语言.

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