黄精油可以改善肠道完整性,免疫学参数以及在循环热应激下肉的表现
Maíse Dos Santos Macário1, Ana Paula Del Vesco1, Claudson Oliveira Brito1
1Department of Animal Science, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil.
Animal science journal = Nihon chikusan Gakkaiho
|September 10, 2024
概括
黄精油补充剂改善了肉在热应激下的表现. 它通过调节免疫和肠道基因表达来增强生长,料转化和肠道健康.
科学领域:
- 动物科学动物科学
- 禽类的营养 养
- 热应激生理学 热应激生理学
背景情况:
- 循环热应激会对肉的表现和肠道健康产生负面影响.
- 需要饮食策略来缓解家禽的热应激影响.
- 黄精油 (EO) 具有潜在的抗炎和抗氧化特性.
研究的目的:
- 为了评估食黄精油 (EO) 减轻肉周期性热应激的疗效.
- 评估黄EO对肠道形态,免疫学参数和基因表达的影响.
- 为了确定黄EO的最佳补充水平,用于热应激肉.
主要方法:
- 使用了一个完全随机的设计,具有4 (饮食:基底,100,200,300毫克/公斤黄EO) x 2 (环境:热中性,循环热应激) 的因数排列.
- 在培养阶段研究了320只雄性Cobb 500肉.
- 分析了肠的高度/密室深度比,H/L比,以及肝/肠基因表达 (HSP70,SREBP1,OCLN).
主要成果:
- 黄EO补充剂 (100和200毫克/公斤) 改善了热应激肉的体重,料转换和乳房产量.
- 补充剂减少了小的宽度,增加了小/密室比率,并降低了H/L比率.
- 肝脏 (HSP70,SREBP1) 和肠道 (OCLN) 基因表达在热应激下受到黄EO的有利调节.
结论:
- 食黄精油有效地减轻肉周期性热应激对肉的不良影响.
- 黄EO改善肠道完整性,调节免疫反应,并提高整体性能.
- 补充100-200毫克/千克的黄EO显示有希望改善肉对热应激的弹性.
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