地八角对兴义矮脚鸡生长及免疫功能的影响

摘要

为地八角在兴义矮脚鸡养殖上的应用提供理论依据，在兴义矮脚鸡日粮中添加地八角草粉5％进行饲养试验，测定体重、胫长、免疫器官指数、雏鸡对新城疫的抗体效价，研究其对兴义矮脚鸡生长性能和免疫功能的影响。结果表明：地八角草粉对兴义矮脚鸡8～20周龄的体重和4～20周龄的胫长生长有显著促进作用；能显著增强兴义矮脚鸡的免疫应答反应，提高新城疫疫苗的免疫效力；可促进兴义矮脚鸡胸腺、法氏囊和脾脏的生长发育。地八角草粉在兴义矮脚鸡中的作用效果与黄芪相似，可以作为中草药饲料添加剂推广应用。%The growth performance and immunity of Xingyi bantam fed with daily ration plus 5%A.bhotanensis powder were studied by measuring body weight,shinbone length,immune organ indexes and antibody titer of chicken against Newcastle disease to provide the theoretical basis for application of A.bhotanensis in cultivation of Xingyi bantam.The results showed that A.bhotanensis powder has the significant positive effects on body weight of Xingyi bantam with 8~20 weeks age and growth of shinbone length of Xingyi bantam with 4~20 weeks age,improves immune response,enhances immune efficacy of Newcastle disease vaccine and promotes growth of thymus,bursa fabricius and spleen.A.bhotanensis with the similar function to Astragalus membranaceus in cultivation of Xingyi bantam should be used as a Chinese herbal medicine feed additive for popularization and application.