摘要
为研究茶多酚在畜禽饲料添加剂中的应用,将210只1日龄固始鸡雏鸡随机分为7组,每组3个重复,每个重复10只,Ⅰ组为空白对照组,饲喂基础日粮;Ⅱ组在日粮中添加2g/kg恩诺沙星可溶性粉;Ⅲ组添加10g/kg的黄芪粉末;Ⅳ组~Ⅶ组分别在日粮中添加2.5、5、10、20g/kg的茶多酚粉末。测定每周采食量、体重,计算平均日增重、料重比等生长性能指标,并测定血清总蛋白、白蛋白、血糖、总胆固醇等生化指标和免疫器官指数、新城疫HI抗体效价和T淋巴细胞转化率等免疫学指标。研究表明,饲量中添加10g/kg茶多酚可显著增重4周龄以上固始鸡雏鸡（P〈0.01）,料重比明显降低,其效果优于恩诺沙星和黄芪粉;同时可提高35d后鸡血清总蛋白、球蛋白和血糖含量,维持白蛋白含量,降低总胆固醇含量;还可刺激28d前固始雏鸡的免疫器官发育,延长NDV HI抗体存留时间和抑制T淋巴细胞增殖,对固始鸡雏鸡生长发育具有促进作用。
In order to research the effects of tea polyphenols in diet on productive performance,210 Gushi chickens were randomly divided into 7 groups,and each group had 3 duplicate.Group Ⅰ was control ,giv-en base diet.The group Ⅱ and Ⅲ was added 2 g/kg enrofloxacin and 10 g/kg Huangqi power to the base diet respectively.The group Ⅳ to Ⅶ were added 2.5,5,10 and 20 g/kg tea polyphenols （TPs）to base diet respectvrly.We determined the body weight and feed intake per week,and calculated the daily weight gain and the feed/gain ratio.We also measured total protein,albumin,glucose and total cholesterol in the sera. At last,some immunologic parameters,such as NDV HI antibody titer,lymphocyte transformation rate and immune organ indexes were measured.The results showed that adding 10 g/kg TPs into the base diet could remarkably increase the daily weight gain（P 〈0.01）,and decrease the ratio of feed/gain,and the effect was better than that of enrofloxacin and huangqi groups.TPs could also increase the content of seral total pro-tein,globulin and glucose,maintain the content of serum albumin at a stable level,and decrease the content of serum total cholesterol of Gushi chickens which were 35 days old.In addition,20 g/kg TPs could stimu-late the development of the immune organs of Gushi chickens which were younger than 28 days old to some extent,prolong the persistence of NDV HI antibody titer,and inhibit the proliferation of T lymphocyte.
出处
《动物医学进展》
CSCD
北大核心
2014年第10期43-46,共4页
Progress In Veterinary Medicine
基金
河南省科技攻关项目(102102110098)
关键词
茶多酚
固始鸡
免疫功能
增重
血清生化指标
tea polyphenols （TPs）
Gushi chicken
immune function
weight gain
seral biochemical index
