犊牛支气管炎实验室诊断

Laboratory Diagnosis of Bovine Bronchitis

支气管肺炎是犊牛阶段很容易发生的一类传染性疾病和呼吸道疾病,该种疾病的传播流行和养殖场内外部环境好坏及致病原侵袭有密切联系。如果养殖场整体卫生环境较差,粪便严重堆积产生大量有毒有害气体,使牛的呼吸道黏膜遭受刺激损伤,致病原会通过损伤的呼吸道黏膜侵入机体,特别是某些致病原如链球菌、巴氏杆菌、肺炎球菌侵入机体后,常会引发牛出现严重的支气管炎症病变。该文主要分析犊牛支气管炎发生的原因,论述具体的临床表现、病理变化和实验室诊断方法,提出相应的防控措施。

Bronchopneumonia is a class of infectious disease and respiratory disease that can easily occur during the calf stage.The spread of the disease is closely related to the environment inside and outside the farm and the invasion of the pathogen.If the general sanitary environment of the farm is poor and the excrement is seriously piled up to produce a large amount of toxic and harmful gas,the respiratory mucosa of the cattle will be stimulated and damaged,and the pathogen will invade the organism through the damaged respiratory mucosa,in particular,some pathogens such as streptococcus,pasteurella,pneumococcus invasion of the body,often lead to serious bovine bronchitis inflammation.This paper mainly analyzes the causes of calf bronchitis,discusses the specific clinical manifestations,pathological changes and laboratory diagnosis methods,and puts forward the corresponding prevention and control measures.