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研究在广泛和密集的生产系统中养的 brojler 的 cecal 微生物群
Camila S Marcolla1, Tingting Ju1, Hannah L Lantz1
1Department of Agricultural, Food and Nutritional Science, University of Alberta , Edmonton, Canada.
Microbiology spectrum
|September 27, 2023
概括
密集的 brojiler养殖可能会减少有益的肠道细菌. 广泛的系统可以容纳像Bacteroidetes这样的核心细菌,这些细菌在密集的系统中不太常见,这表明下一代益生菌的潜力.
科学领域:
- 微生物学 微生物学
- 动物科学动物科学
- 肠道微生物组研究研究
背景情况:
- 密集型 brojler 生产 (IPS) 将病原体最小化,但可能会减少有益的共生细菌暴露.
- 了解 brojler cecal 微生物群组成对于优化鸟类健康和生产力至关重要.
研究的目的:
- 在密集生产系统 (IPS) 和广泛生产系统 (EPS) 下描述 brojlers的 cecal 微生物群.
- 识别EPS中的核心细菌,这些细菌在IPS中被耗尽.
- 创建一个细菌隔离资源,用于未来研究鸟类生理学和微生物社区角色.
主要方法:
- 从22个商业农场的35天大的肉中测序16S rRNA amplicon,测序菌群.
- 从 brojler ceca. 的细菌培养和分离.
- 在IPS和EPS之间对微生物多样性和组成进行比较分析.
主要成果:
- 在IPS和EPS肉之间, cecal微生物群的显著差异.
- EPS微生物群以 Bacteroidetes (55.2% ± 8.9 SD) 为主,而 Firmicutes 则以 IPS 微生物群为主 (61.7% ± 14.4 SD).
- 核心EPS细菌 (例如Olsenella,Alistipes,Bacteroides) 在IPS中不常见或不存在;EPS显示出更高的多样性和预测的功能潜力.
结论:
- 肉的生产系统极大地影响了肉微生物群的组成和多样性.
- 在IPS中耗尽的特定细菌种群需要进一步调查,作为潜在的下一代益生菌.
- 410个细菌分离物 (87个物种) 的宝贵资源被用于未来对宿主微生物相互作用的研究.
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