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1生猪蓝耳病危害目前,蓝耳病(PRRS)是中国规模猪场面临的发病率最高、危害最大的烈性传染疾病。蓝耳病在中国呈流传扩大趋势,中国无蓝耳病感染的阴性猪场比例已不足10%。2006年,中国大范围爆发蓝耳病,生猪养殖行业遭受重创。目前,国内提供蓝耳病灭活苗的企业已达到19家;活疫苗的生产企业10多家,主要涉及5类毒株。
1 Blue-ear pig disease hazards At present, the blue-ear disease (PRRS) is China’s largest-scale pig farms face the highest incidence of the most potent potent infectious diseases. Blue-ear disease has been spreading in China. The proportion of negative pigs without blue-ear disease in China is less than 10%. In 2006, a large-scale outbreak of blue-ear disease in China hit the pig breeding industry. At present, there are 19 domestic enterprises providing inactivated vaccine of blue ear disease, and there are more than 10 producers of live vaccines, mainly involving 5 types of strains.