生长猪的便微生物群概况及其与生长表现的关系
Emilia König1,2, Shea Beasley3, Paulina Heponiemi4
1Faculty of Veterinary Medicine, Department of Production Animal Medicine, University of Helsinki, Helsinki, Finland.
PloS one
|May 6, 2024
概括
小猪肠道微生物群的发展对健康至关重要. 尽管有初始的差异,小猪肠道微生物组倾向于通过屠宰汇聚到类似大的多样性,无论早期的发展群体或环境如何.
科学领域:
- 动物科学动物科学
- 微生物学 微生物学
- 兽医医学 兽医医学 兽医医学
背景情况:
- 早期的肠道微生物群对于小猪的健康,免疫力和长期微生物群的发展至关重要.
- 乳酸菌在母猪和小猪的肠道微生物群中起着重要作用.
研究的目的:
- 为了比较小猪的肠道微生物群与不同生长阶段的母猪.
- 根据发育组 (好,坏,早死) 来分析小猪便微生物群的差异.
主要方法:
- 在三个芬兰农场,从母猪和小猪出生,断奶和屠宰前收集的便样本.
- 使用16S rRNA测序对肠道微生物群组成和多样性的分析.
- 在发展群体和生长阶段之间比较乳酸菌种的丰富性和微生物多样性.
主要成果:
- 猪母乳杆菌的丰度低于出生时的小猪; Limosilactobacillus reuteri 和 Lactobacillus amylovorus 在两者中都占主导地位.
- 乳酸菌在出生时存在于68%的小猪身上,在发育组中分布不均 (好:85%,差:37.5%,过早死亡:75%).
- "好"的发育组表现出最高的微生物多样性,而"过早死亡"的微生物多样性最低;断奶后,小猪的微生物群转向了类似大的多样性.
结论:
- 猪的肠道微生物组合从出生到屠宰发生了显著的演变.
- 尽管最初的变化受到发展和环境的影响,小猪肠道微生物群的α和β多样性往往会在稳定阶段趋同.
- 早期肠道微生物组的建立是影响小猪健康结果的关键因素.
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