鸡新城疫病毒V4株一些特性的研究  

Research on some characteristics of Newcastle disease virus V4 strain.

作　　者：余旭平[1] 应琦华[1] 纪素华 徐仲均 

机构地区：[1]浙江农业大学动物科学学院

出　　处：《浙江农业大学学报》1997年第5期567-569,共3页

基　　金：浙江省教委1994年重大科研项目

摘　　要：对鸡新城疫病毒（ＮＤＶ）Ｖ４株的毒价、血凝（ＨＡ）稳定性和致病指数进行了研究，结果显示ＮＤＶＶ４株的毒价（ＥＩＤ）为１０－８．３～１０－１０．１／０．１ｍＬ，２５℃存放２８ｄ、３７℃存放１２ｄ及反复冻融７次ＨＡ滴度不变，其１日龄雏鸡脑内接种、６周龄鸡静脉接种发病指数和鸡胚平均致死时间分别为：ＩＣＰＩ＝０．００，ＩＶＰＩ＝０．００。Researches have been conducted as to determine the virus titers, HA stability and pathogenic index of Newcastale disease virus (NDV) V4 strain. It showed that the virus titers of NDV V4 strain are between 10 8.3 EID 50 /0.1 mL and 10 10.1 EID 50 /0.1 mL. Its HA is stable for 28 days at 25℃ or for 12 days at 37℃ or freezing and thawing 7 times. And its ICPI,IVPI and MDT are 0.00 , 0.00 and more than 150 hours, respectively.

关 键 词：新城疫病毒 V4株 特性 鸡病 疫苗 免疫 

分 类 号：S858.315.3[农业科学—临床兽医学] S859.797[农业科学—兽医学]