维生素E对热应激雏鸡血清NO含量及GSH-Px活性的影响  

作　　者：王宣懿 许师源 于海波 申海龙 王奔 张宏玲 

机构地区：[1]吉林农业科技学院动物科技学院,132101 [2]黑龙江省七台河市农业农村局,154600 [3]浙江省长兴县农业农村局,313100

出　　处：《当代畜牧》2020年第5期10-12,共3页Contemporary Animal Husbandry

基　　金：吉林农业科技学院大学生科技创新项目(吉农院合字[2018]第087号、[2019]第073号);横向教研项目(畜牧兽医专业“雏鹰班订单式”人才培养的研究与实践)。

摘　　要：笔者用含不同水平维生素E(VE)的日粮饲喂雏鸡至21日龄,对试验组雏鸡进行急性热应激处理(38±1℃,湿度60%~70%)2 h、5 h和10 h,各时间点分别进行心脏采血,测定血清NO含量及谷胱甘肽过氧化物酶(GSH-Px)活性,探索VE对热应激所致雏鸡抗氧化功能损伤的影响。结果表明,在各时间点,随着饲料中VE添加剂量的增加,血清NO含量逐渐下降,血清GSH-Px活性逐渐回升。表明VE具有缓解急性热应激造成雏鸡抗氧化损伤的作用。Chicks were fed daily ration containing different leVEls of vitamin E(VE)to 21 days.The chicks in the experimental group were treated with acute heat stress(38±1℃,humidity 60%~70%)for 2 h,5 h and 10 h.Blood was collected from the heart at each time point,and the serum NO content and glutathione peroxidase(GSH-Px)activity were measured to explore the effect of VE on the antioxidatiVE function damage induced by heat stress in chicks.The results showed that serum NO content gradually decreased,and serum GSH-Px activity gradually increased with the increase of VE dosage at each time point,which showed that VE can alleviate the anti-oxidatiVE damage of chicks caused by acute heat stress.

关 键 词：维生素E 热应激 雏鸡 抗氧化功能 

分 类 号：S816.7[农业科学—饲料科学]