茶多酚对高酒糟日粮肉鸡生产性能和抗氧化特性的影响  

Effects of dietary tea polyphenols on growth performance and antioxidant activity in broilers fed with high levels of DDGS diets

作　　者：李丽[1] 闵育娜[1] 张伟[1] 刘福柱[1] 牛竹叶[1] 张静[1] 王锦[1] 王娟娟[1] 刘少凯[1] 李华磊[1] 

机构地区：[1]西北农林科技大学动物科技学院,陕西杨凌712100

出　　处：《畜牧与兽医》2012年第3期17-22,共6页Animal Husbandry & Veterinary Medicine

基　　金：国家"十一五"科技支撑计划项目(2006BAD12B02-07);陕西省科技攻关项目(2009K01-04)

摘　　要：本研究旨在评估添加茶多酚对高酒糟(distillers dried grain with solubles DDGS)日粮肉鸡生产性能和抗氧化特性的影响。将400只21日龄肉鸡随机分为5个处理,每个处理4个重复,每个重复20只。正对照组为玉米-豆粕型日粮,负对照组为玉米-豆粕-DDGS型日粮(15%DDGS),处理组分别在负对照日粮中添加100、300、500 mg/kg茶多酚。结果表明,与正对照组相比,后期日粮中添加15%DDGS对肉鸡生产性能无显著影响(P>0.05),但血液的GSH-Px降低8.31%(P<0.01),胸腿肉T-AOC含量降低,腿肉MDA值显著升高(P<0.05)。添加茶多酚提高了血液的T-AOC和GSH-Px活性(P<0.05)。随着茶多酚添加剂量的升高,T-AOC和GSH-Px有升高的趋势,但各水平组之间差异不显著;茶多酚添加300 mg/kg以上能显著降低胸腿肌MDA值(P<0.05),提高T-AOC含量,改善肉质的抗氧化特性。本研究结果表明,在肉鸡高DDGS日粮中添加茶多酚可以改善肉鸡机体及肉质的抗氧化特性。This study was to evaluate the effect of dietary tea polyphenols （TP） on growth performance and antioxidant performance in broilers. A total of 400 broilers at 21- day- old were assigned to 5 treatments with 4 replicates of 20 birds. Positive control was corn-soybean meal diet, negative control was corn-soybean-DDGS meal diet （ 15% DDGS） and treatments were supplemented with 100,300 and 500 mg/ kg TP, respectively. The results showed that compared to positive control, the addition of t5% DDGS had no significant influence on growth performance of broilers, while GSH-Px level decreased by 8.31% （ P〉0. 05 ） ; T-AOC levels of thigh and breast meat decreased slightly （ P 〉0. 05 ） ; TP supplementation improved blood T-AOC, GSH-Px activity （ P〈0.05 ）, but there were no significant differences among different TP levels： More than 300 mg/kg TP could significantly decrease MDA of breast and thigh meat （ P〉0. 05 ） and improve T-AOC levels. The results of current research suggested that dietary TP supplementation could improve antioxidant activity in body and meat of broilers fed with high levels of DDGS diets.

关 键 词：茶多酚 酒糟 丙二醛 肉鸡 

分 类 号：S831.5[农业科学—畜牧学]