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在受到沙门氏菌感染的 brojlers 中,共生传递路径 (料,水,组合) 的差异效应
Victoria Drauch1, Mahdi Ghanbari2, Nicole Reisinger2
1Clinic for Poultry and Fish Medicine, University of Veterinary Medicine Vienna, Vienna, Austria.
Poultry science
|March 6, 2025
概括
一种协生性料添加剂有效地改善了受沙门氏菌感染的肉肠道健康状况. 联合或饮用水的管理减少了病原体负荷,增强了有益的肠道细菌,有助于家禽生产.
科学领域:
- 禽畜科学 禽畜科学 禽畜科学
- 微生物学 微生物学
- 动物营养 动物营养
背景情况:
- 沙门氏菌 (Salmonella enterica) 的一个亚种. 肠道菌 Infantis (S. Infantis) 是一种多药耐药的病原体,影响家禽生产.
- 有效的控制策略对于在肉中控制S. Infantis至关重要.
研究的目的:
- 评估S. Infantis感染对肉的影响.
- 评估一种协生性,多种类的料添加剂在缓解S. Infantis感染中的有效性.
- 为了比较不同给药途径 (仅供料,仅供饮用水,组合) 的共生添加剂.
主要方法:
- 肉受到了S. Infantis的感染.
- 一种共生多种类的料添加剂通过料,饮用水或两者一起被施用.
- 分析了器官殖民,肠道微生物组成和免疫功能.
- 随着时间的推移,监测了S. Infantis的负载和流失.
主要成果:
- 综合生物添加剂的联合使用显示出最显著的积极效果,其次是仅饮用水.
- 肠道微生物群有所改善,有益细菌 (乳酸菌,酸菌,丁菌) 增加,蛋白质菌减少.
- S. Infantis 荷载在阴,骨和脏中减少,尽管脱落没有受到影响.
- 在最后一个采样日,饮用水管理显著减少了Cecal S. Infantis的殖民.
- 两组之间没有观察到血清抗体水平的显著差异.
结论:
- 综合性多种动物料添加剂仅在饮用水中和饮用水中使用,对肉肠道微生物群产生积极影响.
- 这些给药途径为减少家禽中S.Infantis的潜在策略提供了机会.
- 这些发现为优化商业家禽管理中的协生菌使用提供了指导,以控制病原体和改善肠道健康.
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