复方中草药添加剂对银香鸡生长性能及免疫功能的影响

选用黄芪、党参、当归、枸杞子、刺五加、山楂和甘草7种补益类中草药作饲料添加剂,添加到银香雏鸡日粮中进行饲养试验,以研究复方中草药添加剂对银香鸡生长性能和免疫机能的影响。试验各组基础日粮相同,试验组添加1%中草药,抗生素对照组添加50mg/kg杆菌肽梓,空白对照组只是基础日粮。试验测定试验鸡体重、增重及免疫器官相对重,于3周龄时接种新城疫疫苗检测血清抗新城疫抗体效价评价中草药添加剂的免疫促进作用。结果表明,6周龄试验组鸡体重和增重与抗生素对照组体重和增重相比差异不显著(P0.05),与空白对照组体重和增重相比差异显著(P0.05),复方中草药添加剂与抗生素具有同样的促生长作用;试验组脾脏和法氏囊相对重,血清抗新城疫抗体效价都显著高于对照组,复方中草药饲料添加剂对银香鸡有免疫促进作用。

Effects of Chinese Medical Herbs on the Growth and Immunity of Yinxiang Chickens

To investigate the effects of Chinese medical herbs on the growth and immunity of Yinxiang chickens,seven Chinese medical herbs such as Astragalus,lanceolata,angelica,medlar,medofenoxate,hawthorn and licorice were added to the diets,and the Newcastle Disease Virus（NDV）vaccine was injected to the Yinxiang chickens on the 3 weeks old.The results showed that the mean body weight and daily gain of the herb group were similar to the antibiotic group,and significantly higher than the control group（P〈0.05）.The spleen and bursa relative weights of the herb group were significantly higher than the control group.The serum antibody titers of anti-NDV of herb group were significantly higher than the control group（P〈0.05）.In conclusion,Chinese medical herbs have significant effect on the growth and immunity of Yinxiang chickens.