中草药复方制剂对肉鸡新城疫免疫影响研究

将210只1日龄的肉仔鸡随机分成7组，每组30只，在ND免疫过程中按每公斤体重0.2 g添加中草药复方制剂，Ⅰ、Ⅱ、Ⅲ组分别在免疫前5天、3天和免疫当天开始连续饲喂3天，Ⅳ、Ⅴ、Ⅵ组分别在免疫前5天、3天和免疫当天饲喂1天，对照组（VII组）不喂药，分别于免疫前1天和免疫后14天、21天、28天和40天翅下静脉采血检测ND抗体水平。结果表明，免疫后投药组抗体效价均高于对照组，抗体达到峰值时平均高出20.2-1.6个滴度，其中Ⅲ组与对照组差异显著（P＜0.05），其他组与对照组差异不显著（P＞0.05）。

Study on the Effect of Chinese Herb Complex on Chicken Newcastle Disease Vaccine Immunity

A total of 210 one day-old broilers were randomly divided into 7 groups with 30 each group.All the trial groups were fed 0.2 g Chinese herb complex with 1 kg weight.Ⅰ,Ⅱ,Ⅲ,groups were fed 3days continuously（Ⅳ,Ⅴ,Ⅵ,fed only 1day）before 5,3 and 0 day ND immunity respectively,and the control group（VII）was fed basic diet with no herbs.We detected ND antibody level of sera on one day before inoculation,14,21,28,40 days after inoculation.The results showed：Compared with control group,Chinese herb complex could improve the value of antibody,exceeding 20.2-1.6 titers average on peak.Ⅲ group had significant difference in contrast to VII（P 0.05）and other groups had no significant difference（P 0.05）.