基于乳杆菌的直接食微生物产品对肠道微生物群和胃肠道形态变化的影响
John I Alawneh1, Hena Ramay2, Timothy Olchowy2
1School of Veterinary Science, University of Queensland, Gatton, QLD 4343, Australia.
Animals : an open access journal from MDPI
|March 13, 2024
概括
直接养的微生物补充剂改善了乳牛奶时的活体重,增强了胃肠发育和肠道微生物群的多样性. 这项研究调查了直接养微生物 (DFM) 产品对小牛生长和肠道健康的影响.
科学领域:
- 动物科学动物科学
- 微生物学 微生物学
- 胃肠病学 胃肠病学
背景情况:
- 早期的胃肠道 (GIT) 微生物群对小牛的表现至关重要.
- 微生物组的变化会影响小牛的发育和健康结果.
研究的目的:
- 为了比较GIT微生物群的建立,形态变化和乳牛犊的生长.
- 评估直接养微生物 (DFM) 产品对这些参数的影响.
主要方法:
- 44只新生Holstein-Friesian小牛被分为治疗 (DFM) 和控制组.
- 便样本被采集用于16S rRNA基因安普利康测序.
- 胃肠道器官在尸体解剖后被称重.
主要成果:
- 补充了DFM的小牛在断奶时显示出更大的活体重 (p=0.02).
- 在DFM组 (p<0.05) 观察到增强的肠和肠道发育以及增加的便微生物多样性.
- 在两组之间发现了八个细菌属的相对丰度的显著差异 (p<0.001).
结论:
- 以乳酸细菌为基础的DFM补充剂对小牛的活体重,GIT发育和肠道微生物群多样性产生积极影响.
- DFM增强了小和肠道的发育,并促进了更大的微生物多样性和均性.
- 需要进一步的研究来探索LAB-DFM产品与肠道粘膜相关微生物群之间的关联.
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