摘要
用鸡柔嫩艾美尔球虫(Eimeria tenalla)的己孢子化卵囊对京白蛋雏鸡进行涓滴免疫,并以不同剂量卵囊分别攻击感染。结果表明,小剂量连续涓滴感染的雏鸡获得较强的免疫力,对大剂量的攻击感染耐过性较强,而初次以大剂量攻击感染的鸡耐过性较差,甚至死亡。
The chickens were infected with spored oocysts of Eimeria tenella in a planned way i. e. seven groups of 14-days-old chickens were 'trickle' immunised by daily infection for 14days with 60 spored oocysts / bird. They were challenged with different dose of oocysts 14days affer the last immunisation, and the non-immunised contrastive groups were also challenged simultaneously. their immunity was observed. The result showed that the trickle immunised groups gained complete protection against the challenge but the contrastive groups had no resistance against the challenge.
出处
《莱阳农学院学报》
1993年第4期305-307,共3页
Journal of Laiyang Agricultural College
关键词
鸡病
柔嫩艾美尔
球虫病
免疫
Eimeria tenella
chicken
trickle
immunisation
