›› 2013, Vol. 40 ›› Issue (7): 175-178.

• 疾病防治 • 上一篇    下一篇

犊牛呼吸道合胞体病毒和巴氏杆菌混合感染的调查研究

祁芝梅1, 赵文信2   

  1. 1. 青海省果洛州班玛县动物疫病防控中心, 青海班玛 814300;
    2. 青海省西宁野生动物园, 青海西宁 810000
  • 收稿日期:2012-12-27 出版日期:2013-07-20 发布日期:2013-07-24
  • 作者简介:祁芝梅(1973-),女,青海人,学士,兽医师,研究方向:疾病防控与检疫。

Investigation on the Mixed Infection of Bovine Respiratory Syncytial Virus and Pasteurella mutocida from Calves

QI Zhi-mei1, ZHAO Wen-xin2   

  1. 1. Center for Animal Disease Control Banma County, Guoluo Autonomous Prefecture Qinghai Province, Banma 814300, China;
    2. Qinghai Province Xining Wild Zoo, Xining 810000, China
  • Received:2012-12-27 Online:2013-07-20 Published:2013-07-24

摘要: 为了对疑似牛呼吸道合胞体病毒和巴氏杆菌混合感染的犊牛进行病原鉴定,本研究采用常规病毒经细菌分离鉴定和PCR方法分别进行分离与鉴定。结果表明,该病毒株能在BT细胞上增殖并产生特征性合胞体形态的细胞病变;无血凝性和血吸附特性;能被牛呼吸道合胞体病毒(bovine respiratory syncytial virus,BRSV)标准阳性血清中和;分离的病毒经RT-PCR鉴定为牛呼吸道合胞体病毒;根据菌落形态、细菌染色特性及生化特性,鉴定分离的细菌为巴氏杆菌。提示,该牛场为牛呼吸道合胞体病毒和巴氏杆菌混合感染。

关键词: 牛呼吸道合胞体病毒; 巴氏杆菌; 混合感染

Abstract: This experiment was to identify the pathogen of calves which was suspected of infecting bovine respiratory syncytial virus and Pasteurella mutocida simultaneously. Conventional test of virus and bacterium, PCR methods were all used to identify viral and bacterial respectively. The results indicated that the virus could grow well, propagate and induce typical cytopathic effect with syncytium form ation in BT cells. The isolate could not agglutinate and adsorb erythrocytes of human, some animals and chicken. The virus could be neutralized by bovine respiratory syncytial virus (BRSV) standard positive serum. The RNA extracted from the cell culture of the isolated virus was subjected to RT-PCR analysis. According to the colony morphology, bacterial staining characteristics and biochemical characteristics, the isolated bacterium was Pasteurella multocida. The calves were infected by bovine respiratory syncytial virus and Pasteurella mutocida simultaneously.

Key words: bovine respiratory syncytial virus; Pasteurella multocida; mixed infection

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