γ-氨基丁酸对持续高温热应激肉仔鸡生产性能和血液指标的影响  

Effect of γ-aminobutyric acid on growth performance and blood parameters in broilers under heat stress formed by the intense heat conditions

作　　者：李超[1,2] 赵青余[1] 马悦培[1,3] 肖传斌[2] 张军民[1] 

机构地区：[1]中国农业科学院北京畜牧兽医研究所动物营养学国家重点实验室,北京100193 [2]河南农业大学牧医工程学院,河南郑州450002 [3]华东师范大学生命科学学院,上海200062

出　　处：《中国兽医学报》2010年第4期556-559,共4页Chinese Journal of Veterinary Science

摘　　要：将216只预饲喂的28日龄爱拔益加(AA)肉鸡分成4组,分别饲喂含γ-氨基丁酸(GABA)含量为0、30、50和50 mg/kg(饮水)的基础日粮,每组设3个重复,每个重复18只鸡,试验于持续高温人工舱内饲养14 d。结果表明,GABA对呼吸率和直肠温度无显著(P>0.05)影响,对血液中T3、T4、皮质醇(COR)和IL-Ⅱ无显著(P>0.05)影响。结果提示,GABA可以降低持续高温热应激肉鸡的呼吸率和直肠温度,并提高其内分泌机能和免疫机能。The effect of γ-aminobutyric acid on respiration rate,rectal temperature and blood parameters in broilers under heat stress formed by the intense heat conditions was studied in this paper.Two hundred and sixteen pre-fed AA broilers which were 28 days old were investigated by being assigned into four dietary treatments with three replicates of eighteen each.These four groups were fed basal diet contained γ-aminobutyric acid 0,30,50 and 50 mg/kg in water,respectively.These broilers were fed in man-made heat stress under continual high temperature for fourteen days.Our results showed that the effects of GABA were not significant on rectal temperature,blood parameters and T3,T4,COR,IL-Ⅱ in blood（P〉 0.05）.But it could decrease the rectal temperature and blood parameters under heat stress and increase the endocrine function and immunized function.

关 键 词：Γ-氨基丁酸 肉鸡 热应激 

分 类 号：S831.1[农业科学—畜牧学]