[目的]探讨在常规饲养条件下添加茶多酚和VE对肉仔鸡的生长性能和抗氧化能力的影响.[方法]选用270只1日龄科宝50肉仔鸡,在基础日粮中添加不同比例的茶多酚(TP)和维生素E(VE),通过测定肉仔鸡血清中超氧化物歧化酶(SOD)和谷胱甘肽过氧化物酶(GSH -Px)活性、丙二醛(MDA)含量、总抗氧化能力(T-AOC)以及全期增重和料重比,研究单独添加茶多酚、VE以及联合添加对肉仔鸡血清抗氧化指标和生长性能的影响.[结果]在日粮中添加茶多酚和VE能显著提高肉仔鸡血清中SOD和GSH - Px活性、总抗氧化能力,降低了MDA含量.其中,以联合添加60 mg/kg茶多酚和80 mg/kgVE的效果最好,极显著高于对照组(P＜0.01),同时对肉仔鸡的生长性能也有促进作用,21日龄、42日龄肉仔鸡体重极显著高于对照组(P＜0.01),而全期料重比极显著低于对照组(P＜0.01).[结论]该研究为茶多酚和VE在动物生产中的应用提供了理论依据.%[Objective]To investigate the effects of tea polyphenols (TP) and vitamin E (VE) on growth performance and antioxidant performance of broilers in the routine breeding conditions. [ Method ] A total of 270 Kebao broilers at 1 day old were fed on the basic diets supplemented with TP and VE at different proportions. The malondialdehyde (MDA) content, total antioxidant capacity (T-AOC) as well as activities of super-oxide dismutase (SOD) and glutathione peroxidase (GSH-Px) were measured. The whole weight gain and feed conversion rate were also determined. [ Result]The broilers fed on TP and VE had remarkably higher serum activities of SOD and GSH-Px,stronger T-AOC and lower MDA content than the control ones. The best effects were achieved when the supplementary dosage of TP and VE was respectively 60 and 80 mg/kg ? Diet, because the experimental broilers had significantly higher antioxidant indices than the control ones (P < 0.01). Additionally, the boilers at the age of 21 or 42 days old had significantly higher body weight and lower feed conversion rate than the control ones (P < 0.01). [ Conclusion ] The study provides a theoretical basis for the applications of TP and VE in animal production.
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