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肉甲通过调节肠道健康来缓解小的沙门氏菌病
1Department of Basic Veterinary Medicine, Sichuan Agricultural University, Chengdu 611100, China.
Veterinary sciences
|April 23, 2025
概括
丁甲 (CA) 通过恢复肠道健康,有效地对抗小的pullorum病 (PD). 这种天然抗菌剂减少了沙门氏杆菌 (Salmonella pullorum) 的殖民,改善了肠道完整性和新陈代谢.
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
- 天然抗菌剂 天然抗菌剂
背景情况:
- 普勒勒姆病 (PD) 导致高死亡率,由于耐药性问题,需要替代抗生素.
- 肉甲 (CA) 是一种天然的草药抗菌剂,由于其多重目标和协同作用,它对家禽具有有前途的作用.
- 调查CA在减轻PD对肠道健康的影响中的作用对于可持续的家禽养殖至关重要.
研究的目的:
- 评估口服肉甲 (CA) 在恢复肠道物理完整性,微生物屏障和感染沙门氏菌 (S. pullorum) 的小的新陈代谢方面的疗效.
- 在PD的背景下,评估CA对炎症反应和紧接环蛋白表达的影响.
主要方法:
- 实验室模型使用36只小分为对照组,感染S. pullorum和接受CA治疗的组.
- 使用ELISA通过H&E染色和炎症因子 (IL-1β,TNF-α,IL-10) 评估肠道物理完整性.
- 使用现场杂交 (ISH) 和RT-qPCR分析紧接蛋白mRNA表达 (claudin-1,ocludin-1,zo-1).
- 微生物群通过16S rRNA基因测序和大肠内含量的代谢物概况分析.
主要成果:
- 抗炎治疗显著降低了促炎性细胞因子 (IL-1β,TNF-α) 和增加了IL-10,表明炎症减少.
- 肠道结构部分恢复,CA上调紧结蛋白,降低了肠道的透性.
- CA治疗显著减少了沙门氏菌的殖民,改变了微生物的组成,并调节了关键的肠道代谢物 (例如,丁酸盐,酸盐).
结论:
- 口服肉甲 (CA) 有效降低pullorum病在小的肠道殖民.
- 通过调节肠道微生物群和代谢功能,CA治疗有助于维持肠道平衡.
- CA代表了一种有前途的天然抗微生物替代品,用于管理家禽的PD,改善肠道健康和完整性.
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