一例猪蓝耳病病毒、猪圆环病毒2型和猪链球菌血清2型混合感染的诊断及防控  

Diagnosis,prevention and control of a case of Porcine reproductive and respiratory syndrome virus and Porcine circovirus 2 mixed infection with Streptococcus suis type 2

作　　者：陈晓雨 于学祥 孙琪 库旭钢[1,2,3] 范盛先 何启盖[1,2,3] CHEN Xiaoyu;YU Xuexiang;SUN Qi;KU Xugang;FAN Shengxian;HE Qigai(College of Veterinary Medicine,Huazhong Agricultural University,Wuhan 430070,China;State Key Laboratory of Agricultural Microbiology,Huazhong Agricultural University,Wuhan 430070,China;The Diagnostic Center for Animal Disease,Huazhong Agricultural University,Wuhan 430070,China)

机构地区：[1]华中农业大学动物医学院,武汉430070 [2]华中农业大学农业微生物学国家重点实验室,武汉430070 [3]华中农业大学动物疫病诊断中心检测实验室,武汉430070

出　　处：《黑龙江畜牧兽医》2021年第6期55-59,146,共6页Heilongjiang Animal Science And veterinary Medicine

基　　金：国家生猪现代产业技术体系项目(CARS-35)。

摘　　要：2019年11月底湖北某商品猪场育肥猪只出现咳嗽、喘气、呼吸困难等症状,为了查找病因、控制疫情、减少损失,采用流行病学调查、临床检查、病理剖检和实验室检测方法进行综合诊断,并根据诊断结果及猪场具体问题提出了防控建议。结果表明:该猪场育肥猪感染了猪蓝耳病病毒NADC30-like毒株、猪圆环病毒2型,同时混合感染了血清2型猪链球菌,分离菌对头孢类药物(头孢曲松、头孢喹肟、头孢他啶)、大观霉素及氨苄西林高敏,通过实施综合防控措施后病情得到了有效控制。说明该猪场育肥猪只发病的主要原因为猪蓝耳病病毒NADC30-like毒株和猪圆环病毒2型及猪链球菌血清2型混合感染,应加强防控。At the end of November 2019,fattening pigs on a commercial pig farm in Hubei showed symptoms such as coughing,wheezing,and dyspnea.In order to find out the cause,control the epidemic and reduce losses,epidemiological investigation,clinical examination,pathological necropsy,and laboratory testing methods were used for comprehensive diagnosis;based on the diagnosis results and specific problems of the pig farm,prevention and control recommendations were put forward.The results showed that the pigs in the affected farm were infected with Porcine reproductive and respiratory syndrome virus NADC 30-like and Porcine circovirus 2,and were simultaneously infected with Streptococcus suis serotype 2.The bacteria isolates were hypersensitive to cephalosporin drugs(ceftriaxone,cefquinome,ceftazidime),spectinomycin and ampicillin.The condition had been effectively controlled after the implementation of comprehensive prevention and control measures.The results suggested that the main cause of the disease in fattening pigs in this pig farm was the mixed infection of Porcine reproductive and respiratory syndrome virus NADC30-like strain,Porcine circovirus 2 and Streptococcus suis serotype 2,prevention and control should be strengthened.

关 键 词：猪呼吸道疾病综合征 猪蓝耳病 猪圆环病毒2型 育肥猪 混合感染 疫苗 防控 

分 类 号：S855.3[农业科学—临床兽医学]