中文摘要：

观察在低温环境下红三叶异黄酮对肉鸡腹水综合症的防治效果及其对肉鸡抗氧化性的影响。300羽肉鸡随机分为3组：常温对照组,低温组、低温黄酮组,采用低温诱发AS,记录AS发病数,并分别于14,21,28,35和42d从各组随机抽取6羽肉鸡取样,测定右心肥大指数,红细胞压积,血清和肝脏组织的SOD、MDA和GSH-Px等指标。结果表明环境低温使肉鸡腹水综合症发病率升高,肉鸡日粮添加红三叶异黄酮能够有效地降低寒冷诱发的AS发病率,右心肥大指数和红细胞压积,并提高了抗氧化性能。

英文摘要：

The aim of this study was to observe the role of red clover（Trifolium pratense） isoflavones on ascites syndrome（AS） and antioxidant activity of broiler.Three hundreds broilers were randomized divide into three groups： normal temperature control group,low temperature group,low temperature and supplement red clover isoflavone group.AS was induced by cold exposure,ascites syndrome incidence was recorded.Six birds were randomly selected from each group on 14,21,28,35 and 42 days,ascites heart index（AHI）,packed cell volume（PCV）,SOD（superoxide dismutase）,MDA（malonaldehyde） and GSH-Px（glutathione peroxidase） in serum and liver were detected.The results showed that the incidence of AS was increased induced by cold exposure,treatment with red clover isoflavone attenuated AS incidence,AHI and PCV were decreased,further,red clover isoflavone elevated antioxidant activity of broiler.