在死肠炎期间评估传统和现代肉品种的表现,肠道病变和免疫相关基因在死肠炎的挑战
Laney E Froebel1, Ali Calik2, Nima K Emami1
1Avian Immunobiology Laboratory, Department of Poultry Science, University of Georgia, Athens, GA 30602, USA.
Poultry science
|October 4, 2024
概括
遗产ACRB肉与现代科布肉相比,表现较差,对死肠炎 (NE) 产生明显的免疫反应. 这些发现凸显了需要特定品种的策略来管理家禽中NE挑战的必要性.
科学领域:
- 禽畜科学 禽畜科学 禽畜科学
- 免疫学 免疫学 免疫学
- 动物遗传学动物遗传学
背景情况:
- 死亡性肠炎 (NE) 对肉的健康和生产力构成重大威胁.
- 了解特定品种的免疫反应对于有效的疾病管理至关重要.
研究的目的:
- 为了比较传统 (ACRB) 和现代 (Cobb) 肉对死肠炎挑战的不同反应.
- 为了评估性能,病变得分和免疫基因表达,以应对NE.
主要方法:
- 一个2x2的因数设计与品种 (ACRB,科布) 和挑战 (无挑战,NE无挑战).
- NE的挑战涉及到Eimeria maxima和Clostridium perfringens的接种.
- 评估了表现,死亡率,病变评分和脏和桃体中的mRNA丰度.
主要成果:
- 与科布鸟相比,NE挑战的ACRB鸟类的生长性能降低了.
- 在损伤得分上没有观察到任何重要的品种差异.
- 科布鸟在挑战后的桃体中显示出关键免疫基因 (IL-18,TNFα,TLRs) 的mRNA丰度较高.
- 总体而言,ACRB鸟类对某些免疫基因 (IL-1β,TNFα,NK-lysine) 的mRNA丰度较高.
结论:
- 传统和现代肉品种表现出对NE的独特免疫反应概况.
- 在营养,管理和遗传学方面,需要采用特定品种的方法来优化免疫反应并减轻NE的影响.
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