在一项随机交叉试验中,健康狗的微生物群在耐药粉补充剂的反应中显著减少丰富性和特定细菌群体的变化,但不是粉或甲基纤维素
Silke Salavati Schmitz1, Jorge Perez-Accino Salgado1, Laura Glendinning2
1Hospital for Small Animals, Royal (Dick) School of Veterinary Studies, College of Medicine and Veterinary Medicine,, University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG, UK.
Access microbiology
|June 13, 2024
概括
耐药粉补充剂改变了狗肠道细菌,减少了有益的微生物. 和甲基纤维素对狗微生物群的影响很小,这表明耐药粉不是适合狗的益生菌.
科学领域:
- 兽医科学 兽医科学 兽医科学
- 微生物学 微生物学
- 动物营养 动物营养
背景情况:
- 食纤维是狗的常见益生菌补充剂.
- 不同纤维类型对狗肠道微生物群的具体影响尚不清楚.
研究的目的:
- 评估草皮,耐药粉 (香粉) 和甲基纤维素对狗便微生物群的影响.
- 评估微生物群丰富性,多样性和分类丰富性的变化,以应对纤维补充.
主要方法:
- 一项涉及17只健康狗的交叉试验,补充了三种不同的纤维类型.
- 在补充剂之前,期间和之后收集的便样本的16S rRNA基因测序.
- 对α多样性指数和微生物种群的差异丰度的分析.
主要成果:
- 甲基纤维素改善了便分数,但没有改变微生物群的组成.
- 草皮在特定的种群中引起了轻微的,可能是微不足道的变化.
- 耐药粉减少了微生物群的丰富性,并改变了分类丰富性,减少了短链脂肪酸生产者 (Bacillota) 和增加了其他类 (Bacteroidota,Pseudomonadota,Actinomycetota,Sacharibacteria).
结论:
- 和甲基纤维素对狗肠道微生物群的影响有限.
- 耐药粉补充导致了显著的分类学转变,可能表明微生物群组成不太有利.
- 测试的特定耐药粉不建议作为狗的益生菌,因为它对微生物群的负面影响.
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