摘要
1990～1992年,在湖南省武冈、岳阳、芷江和湖北省公安等县,用不同毒力的小鹅瘟疫苗,采用不同的免疫程序免疫母鹅.同时,采用免疫后175～188 d 内的母鹅产蛋所孵化的雏鹅进行攻毒试验.田间试验结果表明:用小鹅瘟鸭胚苗或鹅胚苗采用一次免疫法,母鹅免疫后175～182 d内,其后代的保护率为81.7%～87.0%;两次免疫法,首次用鸭胚苗或鹅胚苗,第2次用毒力较强的鹅胚苗,其后代的保护率为89.3%～94%.在攻毒试验中前一种方法对雏鹅的保护率只有60%～81.8%,而后一种方法则达到了86.6%～90.4%.
The goslings were immunised with goose embryo-treated gosling plaguevaccine(SEP)and duck embryo-treated gosling plague vaccine(EGD).The goslings hatchedfrom the goose eggs immunised for 175～182 days were affacked by gosling plague virus.Theresults of the field experiments showed that when goslings immunised once with SEP or EGDthe protection rate of their offsprings was 81.7%～87.4%,when goslings immunised firstly.with SEP or EGD and secondly with SEP the protection rate of their offsprings was 89.3%～94.%.In the arrack experiment the protection rate was 60%～81.8% in the firstimmunised procedure and 86.6%～90.4% in the second.
关键词
小鹅
禽病
免疫
小鹅瘟
防治
gosling
avian disease
immunological technics/attack
