摘要
以国际标准强毒Ｒ株人工感染非免疫产蛋鸡，定时扑杀，分别从鼻窦、眶下孔、气管、肺、气囊、卵巢和输卵管分离ＭＧ，并收集感染鸡所产蛋分离ＭＧ。结果表明，人工感染４８小时后上、下呼吸道及肺已被全面感染，９６小时气囊已被感染，１２０小时输卵管已能分离到ＭＧ，卵巢始终分离不到ＭＧ。人工感染鸡自１４４小时便能在其所产蛋中分离出ＭＧ。药物治疗能在７２小时内消除感染，油乳剂苗则需２４天后逐渐降低蛋内ＭＧ分离率，药物卵内注射、种蛋药浴、高温处理均能杀死卵内ＭＧ，但以研制的种蛋浸泡剂药浴效果为最好。
Artificial infected non-immunity layer with type strain R, slaughtered the layer after infection, seperated MG from infraorbital、 trachea、lung、air sac、 ovary and physiol etc. In the end we collected MG from eggs, the result showed that the all of respiratory system has been infected after 48h,the air sac was infected after 96h and can seperate MG from physiol after 120h, but none of ovary. We can seperate MG from eggs of artifica infected chichens after 144h. Drug-therapeutic can sweep off infection in 72...
出处
《中国预防兽医学报》
CAS
CSCD
2000年第S1期140-142,共3页
Chinese Journal of Preventive Veterinary Medicine
基金
江苏省"九五"重点攻关项目!编号BE-96502
关键词
MG
垂直传染
阻断
MG
Vertical Spread
Detergence
