饲粮中添加α-亚麻酸对产蛋鸡生产性能和肝脏AMPK的影响(英文)  

Effect of α-linolenic Acid in Diet on Laying Performance and AMPK of Enzyme Activity in the Liver of Laying Hens

作　　者：李志琼[1] 余冰[1] 张克英[1] 陈代文[1] 刘忠臣[2] 王书礼[2] 

机构地区：[1]四川农业大学动物营养研究所,雅安625014 [2]四川农业大学河南商都博士工作站,郑州451191

出　　处：《动物营养学报》2008年第1期58-62,共5页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：National Natural Science Foundation of China(NO:30371047)

摘　　要：本试验旨在探讨日粮中添加α-亚麻酸对海兰褐商品蛋鸡生产性能和肝脏AMPK的影响。采用单因素试验设计方法,在日粮中分别添加α-亚麻酸0.0%(对照组)、0.5%、1.0%、2.0%、3.0%和4.0%6个处理,每个处理组设5个重复,每个重复3只30周龄海兰褐商品蛋鸡。试验期28d。结果表明:添加α-亚麻酸使平均蛋重增加,添加α-亚麻酸3.0%组增加最大(P<0.05);料蛋比降低,第4周添加α-亚麻酸4.0%组降低最大(P<0.01);肝脏重、肝脏/体重、卵巢重、卵巢/体重、腹脂重和腹脂率减少,均以添加α-亚麻酸3.0%组最低(P>0.05)。AMPK酶活增加,添加α-亚麻酸1.0%组达极显著(P<0.01)。结论:添加α-亚麻酸可提高蛋鸡生产性能,增加AMPK酶活。In this study, α single-factor design was employed to explore the effects of supplementing α-linolenic acid in diets on laying performance and AMP-activated protein kinase （AMPK） activity of laying hens. The level of α- linolenic acid was 0.0% （the control group）, 0.5%, 1.0%, 2.0%, 3.0% and 4.0%, respectively. Each treatment had five replicates of three 30-week-old Hyline brown commercial laying hens. The duration of the study was 28 days. The results showed that supplementation of α-linolenic acid increased the average egg weight, and the 3.0% group was the highest （P〈0.05）. The ratio of feed intake to egg production was decreased, and the 4.0% group was the lowest （P〈0.01）. The liver weight, liver/body weight, ovary weight, ovary/body weight, abdominal fat weight and abdominal fat/bodyweight were decreased, and the 3.0% group was the lowest （P〈0.05）. The activity of AMPK was increased, and the 1.0% group was the highest （P〈0.01）. It is concluded that α-linolenic acid supplementation can improve laying performance and AMPK activity.

关 键 词：蛋鸡 生产性能 AMPK Α-亚麻酸 

分 类 号：S831.1[农业科学—畜牧学] TS221[农业科学—畜牧兽医]