相关实验视频
Updated: Sep 12, 2025

04:36
Author Spotlight: Advancing Intestinal Bacteria Cultivation for Poultry
Published on: May 10, 2024
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早期的家禽衍生的乳杆菌驱动微生物的继承和肠道免疫调节在肉
bioRxiv : the preprint server for biology
|August 6, 2025
概括
早期在卵子中给予益生菌显著改善肉肠道健康和免疫力. 一次胚胎剂量的乳酸菌提供了与多次口服剂量相比的好处,影响肠道微生物群并减少炎症.
科学领域:
- 禽畜科学 禽畜科学 禽畜科学
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
背景情况:
- 益生菌补充剂被认为可以增强家禽的肠道健康和免疫功能.
- 有限的研究存在于生命早期,特别是胚胎,益生菌管理的影响.
研究的目的:
- 为了研究卵内,化后或联合施用乳酸菌对 brojler肠道免疫力和 cecal microbiota 继承的影响.
- 为了比较单次卵子内剂量与重复口服或联合剂量的疗效.
主要方法:
- 肉在卵子 (胚胎第18天),化后或两者兼而有之时服用乳酸菌尾酒.
- 在5周的时间里,使用16S rRNA基因测序分析了Cecal的含量.
- 使用MaAsLin2评估微生物组成,通过细胞因子表达分析评估免疫反应.
主要成果:
- 在卵子中给药改善了化率,调节了早期微生物的继承,减少了特定的致病细菌,增加了乳杆菌.
- 香农的多样性在三周内稳步增加,社区结构在第三周稳定下来.
- 微生物组的变化与桃体中促炎性细胞因子 (IFN-γ,IL-1β,IL-8) 的表达减少有关.
结论:
- 在卵子中早期的益生菌干预在塑造肠道微生物殖民和 brojlers 免疫发育方面发挥着关键作用.
- 一次胚胎剂量的乳酸菌可以获得与每周口服或联合施用策略相比的肠道健康和免疫调节益处.
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