评估不同油源在通过提高性能,消化酶,抗氧化状态和肉质量来减少环境热应激效应的有效性
Ahmed M Elbaz1, Engy F Zaki2, Atif A Salama2
1Animal and Poultry Production Department, Desert Research Center, Cairo, Egypt. dm.a.baz@gmail.com.
Scientific reports
|November 18, 2023
概括
在热应激条件下,向肉料中添加食油可以改善生长,料转化和肉质,特别是橄油. 这提高了 brojler 的性能和氧化状态.
科学领域:
- 动物科学动物科学
- 禽类营养 养 禽类营养
- 环境压力生理学生理学
背景情况:
- 食油对于肉的能量,新陈代谢和免疫功能至关重要.
- 环境热应激会对肉生长,性能和肉质产生负面影响.
研究的目的:
- 为了评估不同食油来源 (大豆,玉米,橄,鱼油) 对热压下的 brojlers 的影响.
- 评估对性能,消化能力,氧化状态,血脂质,脂肪酸和肉质量的影响.
主要方法:
- 625只肉被分为五组:对照组 (没有油) 和四组补充了大豆,玉米,橄或鱼油 (3%的含量).
- 评估了生长性能,尸体特征,料转化率,消化酶,血参数 (AST,ALT,HDL,SOD,MDA),脂肪酸概况和肉质 (颜色,TBA值).
主要成果:
- 用对照饮食养的热应激肉表现不佳,氧化状态不佳.
- 与对照组相比,补充油改善了生长,料转化和尸体包装.
- 橄油和大豆油表现最好;橄油显著改善了氧化状态 (增加HDL,SOD;减少MDA) 和肉质.
- 食油增强了乳腺肌肉脂肪酸成分和肉质量参数.
结论:
- 用3%的油补充肉饮食可以减轻热应激对生长,氧化状态和肉质的负面影响.
- 在测试的油源中,橄油表现出最有益的效果.
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