新城疫病毒SXFP株的分离鉴定  

Isolation and Identification of NDV SXFP Strain

作　　者：吴辉[1] 赵战峰[1] 尚文博[1] 

机构地区：[1]咸阳职业技术学院生物科技系．陕西咸阳712000

出　　处：《动物医学进展》2008年第11期50-51,共2页Progress In Veterinary Medicine

基　　金：咸阳职业技术学院科研基金项目(07A01)

摘　　要：从陕西富平某种鸡场发病鸡群中分离出一株流行毒株,经HA-HI试验和动物回归试验,确定分离到的病毒为鸡新城疫病毒(NDV),命名为SXFP株。经过测定,SXFP株鸡胚半数致死量(ELD50)为109.0/0.1mL;鸡胚最小致死量的平均致死时间(MDT)为52.3h,对1日龄SPF雏鸡脑内致病指数(ICPI)为1.92,提示SXFP株为强毒株。血清HI交叉反应试验显示SXFP株和LaSota株存在较小的抗原性差异。A virus strain was isolated from a chicken farm in Fuping, Shaanxi. It was identified as a NDV strain by HA-HI tests and animal regression test,and named as SXFP strain. The ELDs0 ,MDT and ICPI of SXFP strain were 10^9.0/0.1 mL,52.3 h and 1.92,respectively. The results indicated that SXFP strain was a virulent strain. The seral HI cross-reaction test showed that the antigenicity between SXFP strain and La Sota strain had little difference.

关 键 词：新城疫病毒 SXFP毒株 毒力测定 

分 类 号：S852.659.5[农业科学—基础兽医学] S858.31[农业科学—兽医学]