茶多酚对固始鸡生产性能和脂类代谢的影响

Effect of Tea Polyphenols on the Performance Ability and Fat Metabolin of Gushi Chicken

为了研究茶多酚对固始鸡生产性能和脂类代谢的影响,选取1日龄固始鸡90只,随机分为3组,1组为对照组,饲喂基础日粮,2、3组为试验组,分别在基础日粮中添加质量分数为0.025%和0.050%的茶多酚。于21日龄、42日龄时测定血清中脂类指标,于42日龄时测定腹脂率、肝脂率和生产性能。结果显示:0.025%、0.050%的茶多酚能降低试鸡血液中总胆固醇、甘油三酯和低密度脂蛋白胆固醇的含量,明显增加血液中高密度脂蛋白胆固醇含量,降低鸡的腹脂率和肝脂率,试验期试鸡的生产性能未受到任何影响。上述结果表明,饲料中添加茶多酚有利于改善固始鸡的脂类代谢。

In order to research the effects of tea polyphenols in diet on performance ability and fat metabolin of Gushi chickens,a total of ninety 1-day-old healthy Gushi chickens with similar weight were randomly divided into 3 groups.For a negative control,chickens of group Ⅰ was fed with basal diet.The experimental group Ⅱ and Ⅲ were fed with basal diet added tea polyphenols with 0.025% and 0.050%,respectively.The blood lipids were determined at 21-day and 42-day respectively.The rates of abdominal fat （RAF） and liver fat （RLF） were determined at 42-day.The results showed that adding 0.025% or 0.050% tea polyphenol in diets decreased the contents of cholesterin,triglyceride and low density lipoprotein,but inrceased the contents of high density lipoprotein in blood of Gushi chicken.The rates of abdominal fat and liver fat in experimental chickens increased distinctly.The changes of performance ability in control and experiment groups were not distinct.