规模化自繁猪场猪圆环病毒病的流行特点和防控措施

猪圆环病毒2型（porecine circovirus type 2,PCV2）是猪圆环病毒病（porcine circovirus diseases,PCVD）的主要病原,该病流行范围广,感染率高而表现临床症状少,是一种缓慢、渐进性的综合征,多为隐性感染,常常存在多因子诱因,一旦发病反复迁延、病程延长,造成较大的经济损失。对规模化自繁猪场PCVD的流行特点、病因分析等方面进行了阐述,以期为PCVD的防控提供参考。

Epidemiological Characteristics and Preventive Measures of Porcine Circovirus Diseases in Scaled Intra-breed Swine Farm

Porecine circovirus type 2（PCV2） is the main causative agent of porcine circovirus diseases（PCVD） which is widely spread in swine farm. The infection of PCV is frequently prevalent but is always latent. PCVD is a chronic syndrome and the clinical symptoms of infected swine seem minor. PCVD can be caused by multiple causative agents, and the occurrence of this disease always results in relapse and extension of infection duration, which brings huge economic to swine production. The etiology, epidemiological characteristics and preventive measures of PCVD in scaled intra-breed swine farm are reviewed, so as to provide references for the control of PCVD.