山东部分地区猪瘟与蓝耳病的流行病学调查

Epidemiological Investigation of Classical Swine Fever and Porcine Reproductive and Respiratory Syndrome Infection in Six Regions of Shandong Province

[目的]对山东部分地区进行猪瘟与蓝耳病的流行病学调查。[方法]采取血清学检测方法和问卷调查的方式,对山东6个地区养殖场的猪瘟(CFS)与蓝耳病(PRRS)感染情况进行流行病学调查,同时进行现场临床调查和病例剖检。[结果]在检测的598份病猪血清中,有463份为阳性,感染率为77.42%,其中377份为CFSV感染,感染率为63.04%;274份为PRRSV感染,感染率为45.82%;188份为PRRSV和CFSV混合感染,感染率为31.44%。在198份问卷调查中,44个兽医站、112个村级兽医和42个养殖场确定了CSF与PRRS的存在,并且通过现场临床调查和剖检诊断,进一步证实了2种疾病的存在。[结论]CSF和PRRS仍然是危害山东养猪业发展的主要疾病,应加强对该种病的防控工作。

[Objective] The research aimed to investigate epidemiology of porcine reproductive and respiratory syndrome （PRRS） and classical swine fever （CFS） in the six regions of Shandong Province. [Method] Questionnaire investigation and the serology detection were adopted to in- vestigate infection situation of the PRRS and CFS in six regions of Shandong Province.[Result] The results showed that the positive rate was 77.42 % （463/598） , in which, CFSV positive rate was 63.04% （ 377/598 ） , PRRSV positive rate was 45.82 % （274/598） , and the double in- fection rate of PRRSV and CFSV was 31,44% （188/598 ）. In the 198 questionnaires from 44 veterinary stations, 112 veterinarians, and 42 pig farms, PRRS and CFS were of occurrence in the six regions of Shandong Province,which was determined by the clinical and pathoanatomy in- vestigation. [Conclusion] It is concluded that PRRS and CFS were still the principal disease threatening the development of pig feeding, and the preventive measure should be strengthened.