红车轴草异黄酮对肉鸡免疫器官、免疫球蛋白及抗氧化性能的影响

摘要

通过在饲料中添加红车轴草(Trifolium pretense L.)异黄酮,研究其对AA肉鸡免疫器官、免疫球蛋白及抗氧化性能的影响.选用180羽1日龄AA肉仔鸡分成3组,即对照组、处理I组、处理Ⅱ组,分别饲喂基础日粮、基础日粮+红车轴草异黄酮(10 mg·kg-1)、基础日粮+红车轴草异黄酮(20 mg·kg-1).结果表明:处理组的肉鸡日增重和免疫器官指数均高于对照组,饲喂21 d后,处理组血清IgM的含量显著高于对照组(P<0.05),49 d后,处理I组肉鸡血清IgG含量显著高于对照组(P<0.05);红车轴草异黄酮提高了血清中谷胱甘肽过氧化物酶(GSH-PX)活性,降低了丙二醛(MDA)含量,处理I组和处理Ⅱ组之间差异不显著.红车轴草异黄酮能够明显改善肉鸡生产性能、调节免疫和提高机体的抗氧化性.%The effect of red clover isoflavone on Immune Organs, Igs and Anti-oxidation Activity of Broilers was investigated. One-day-old AA broiler Chicks were randomly assigned to three groups (control, group 1 and group 2). Basic diet, basic diet+red clover isoflavone (10 mg · kg-1) and basic diet+red clover isoflavone (20 mg · kg-1) were fed to three groups respectively. Results indicated that red clover isoflavone increased daily weight and immune organ indexes. IgM contents in serum of both group 1 and 2 on 21 days after feeding were higher than control (P＜0.05). IgG contents in serum of group 1 were higher than control on 49 days after feeding (P＜0.05). Red clover isoflavone also enhanced GSH-PX activity and reduced MDA content in serum. Group 1 and group 2 had no significant difference. These results showed that red clover isoflavone could modulate growth performance and immunity of broiler chicks as well as increase anti-oxidation activity of broiler chicks.