通常与传染性支气管炎病毒，新城疫病毒和大肠杆菌等病原协同感染，导致呼吸道症状加剧，使死亡率增高。
Usually chickens suffered co-infection with Infectious bronchitis, Newcastle virus or Escherichia, and led to forced-breathing and increased mortality.
通过鸡胚法和人工感染雏鸡测定其对新城疫病毒的抑制作用。
Inhibiting function of it to Newcastle Disease Virus (NDV) was tested through chicken embryos method and artificially infecting chickens.
新城疫病毒自从1926年发现并分离到该病毒以来，该病毒至今还在世界各地流行和传播。
Newcastle disease virus (NDV) was found and isolated in 1926, and prevalence of the virus has widely spread in the world.
应用裂解气相色谱法(PGC)分析了五株流感病毒和一株新城疫病毒感染的鸡胚尿囊冻干样品。
Five strain influenza and one strain Newcastle disease virus were analysed by pyrolysis gas chromatography (PGC).
方法利用传统鸡胚培养方法制备新城疫病毒（NDV），通过PEG-6000沉淀，差速离心和蔗糖密度梯度离心等方法提取纯化了新城疫病毒（NDV）。
Methods Newcastle disease virus(NDV) was prepared in embryonic egg. NDV was purified by deposited of PEG-6000, speed centrifugation and sucrose—density gradient—centrifugation(SDGC).
经一次差速离心分别提取鸡胚尿囊液中的F_（48）E_8和N-79株鸡新城疫病毒（NDV），获得纯化抗原。
The Newcastle Disease viruses (NDV) of strains F48Eg and N-79 prepared from embryonated eggs were purified by one differential centrifugation.
经一次差速离心分别提取鸡胚尿囊液中的F_（48）E_8和N-79株鸡新城疫病毒（NDV），获得纯化抗原。
The Newcastle Disease viruses (NDV) of strains F48Eg and N-79 prepared from embryonated eggs were purified by one differential centrifugation.
应用推荐