富维生素E转基因玉米对0～3周龄肉仔鸡生产性能和抗氧化能力的影响  

Effects of dietary genetically modified maize rich in vitamin E on production performance and antioxidant capacity of broilers aged 0～3 weeks

作　　者：杨欢 汤超华 张凯[2,3] 赵青余[2,3] 唐德富[1] 张军民[2,3] 李发弟[1] 

机构地区：[1]甘肃农业大学动物科学技术学院,甘肃兰州730070 [2]中国农业科学院畜牧兽医研究所农业部华北动物遗传资源与营养科学观测实验站,北京100193 [3]中国农业科学院世界农用林业中心农用林业与可持续畜牧业联合实验室,北京100193

出　　处：《甘肃农业大学学报》2016年第2期21-27,共7页Journal of Gansu Agricultural University

基　　金：转基因生物新品种培育科技重大专项(2014ZX08003-002)

摘　　要：【目的】试验旨在研究富维生素E转基因玉米对0~3周龄AA肉仔鸡的生长性能、血清α-生育酚含量和抗氧化能力的影响.【方法】将480只1日龄AA肉仔鸡公雏随机分为3个处理组,每个处理8个重复,每个重复20只鸡,试验期21d.【结果】3组肉仔鸡间生产性能差异均不显著(P>0.05).随着试鸡日龄增大,肉仔鸡血清α-生育酚含量下降.第7天时,富维生素E转基因玉米组和对照组2肉仔鸡的血清GSH-Px活性和T-SOD活性均显著高于对照组1(P<0.05);肝脏T-SOD活性对照组2肉仔鸡显著高于对照组1(P<0.05).第14天时,肝脏GSH-Px和SOD活性对照组2肉仔鸡显著高于对照组1(P<0.05).第21天时,富维生素E转基因玉米组和对照组2肉仔鸡血清α-生育酚含量均显著高于对照组1(P<0.05);肝脏MDA含量对照组1肉仔鸡显著高于富维生素E转基因玉米组(P<0.05);肝脏GSH-Px活性富维生素E转基因玉米组肉仔鸡显著高于对照组1(P<0.05);肝脏T-SOD活性富维生素E转基因玉米组和对照组2肉仔鸡显著高于对照组1(P<0.05).【结论】在本试验条件下,富维生素E转基因玉米能够提高肉仔鸡血清中α-生育酚含量,改善血清和肝脏的抗氧化能力,对肉仔鸡生长性能无显著影响.[Objective] The test was conducted to research the effects of genetically modified maize rich in vitamin E on growth performance, α-tocopherol content in serum and antioxidant capacity of broilers aged 0--3 weeks. [Method] Four hundred and eighty AA mate brolters ageo one-uay w a ed into three treatment groups with eight duplication for each group and 20 broilers in each duplication, and the test period was 21 days. [Result] The growth of broilers was not significantly different among three groups （P~〉0. 05）. The a tocopherol content of serum decreased with the increasing of days. On the 7th day,both GSH-Px and T-SOD activity in serum of genetically modified maize rich in vitamin E （MRVE） and control 2（C2）were higher than those of control 1（C1） （P^0.05） ,and C2 was the higher at T-SOD ac- tivity in liver than C1 （P%0. 05）. On the 14th day, the GSH-Px and T-SOD activity in liver of C2 were higher than those of C1 （P-C0.05）. On the 21st day, the ^-tocopherol content in serum of C1 and MRVE were significantly higher than that of C2 （P^0.05）. MDA content in serum of C1 was markedly higher than that of MRVE （P%0.05） ,GSH-Px activity in liver showed the reverse change trend （P%0. 05） and T-SOD activity in liver of MRVE and C2 were significantly higher than that of C1. [Conclusion] Under the test conditions,MRVE can improve a-tocopherol content in serum and antioxidant capacity in serum and liver and there is no significant effect on growth of broilers.

关 键 词：转基因玉米 维生素E 肉仔鸡 生产性能 抗氧化能力 

分 类 号：S816[农业科学—饲料科学]