摘要
本研究利用益生芽孢杆菌微生态饲料添加剂混料饲喂雏鸡,在7日龄和21日龄进行两次新城疫疫苗免疫后,检测相关指标。结果显示,试验组的新城疫血凝抑制效价(HI)明显高于对照组,差异极显著(P<0.01);脾脏指数、胸腺指数均显著高于对照组,差异显著(P<0.05);法氏囊指数高于对照组,差异不显著(P>0.05)。结果表明本制剂对雏鸡具有免疫调节作用。
The healthy chickens were fed on the diets containing micro-ecological additive of Bac-probiotics at age of1day,and were immunized with NDⅣat age of7days and21days.At age of35days,blood samples were taken randomly from8chickens for determining their body weights and HI antibody levels.Then,thymus,spleen and bursa were separated from above killed chickens for examining their immune organs indexes.The results showed that the HI antibody levels in the experimental group were significantly higher than those in the control group,(P<0.01).The indexes of thymus and spleen in the experimental group were significantly higher than those in the control group,respectly(P<0.01,P<0.05);But the indexes of bursa in the experimental group were insignificantly higher than those in the control group(P>0.05).The study indicated that this micro-ecological additive could enhance the immunodeficiency,incentive the development of the immune organs,and modulate the immunization ability in chickens.
出处
《四川畜牧兽医》
2002年第2期25-27,共3页
Sichuan Animal & Veterinary Sciences
关键词
芽孢杆菌
免疫
雏鸡
新城疫疫苗
probiotics bacillus
newcastle disease
immunity chicken
