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为了解鄂西北地区规模化猪场所用猪瘟疫苗的类别及免疫效果,对鄂西北地区38家规模化猪场猪瘟疫苗的使用情况进行调研,采集829份血清进行了猪瘟抗体水平检测。结果表明:38家规模猪场中有26家(68.4%)使用政府供应疫苗,12家(31.6%)使用商品疫苗;猪瘟细胞苗和脾淋苗在猪场的使用比例分别为71.1%和28.9%;猪场母猪猪瘟疫苗使用剂量高于推荐剂量的1.2~6倍,生长育肥猪使用的剂量为推荐剂量的1~4倍,猪场使用政府供应的疫苗时剂量高于商品疫苗;20家猪场群体免疫合格(52.6%),18家猪场群体免疫不合格(47.4%);受检的829份血清中,阴性血清158份(19.1%),阳性血清609份(73.5%)。说明鄂西北地区猪瘟疫苗以政府供应猪瘟细胞苗为主,不同养殖场免疫效果差别大,需要规范免疫程序,加强免疫抗体水平检测,以降低该地区猪瘟疫病风险。
In order to understand the type and immunogenicity of classical swine fever vaccine used in large-scale pig farms in northwestern Hubei Province, the use of hog cholera vaccine in 38 large-scale pig farms in northwestern Hubei Province was investigated. 829 serum samples were collected for the detection of classical swine fever antibody. The results showed that 26 (68.4%) of the 38 pig farms used the government vaccine and 12 (31.6%) used the vaccine. The use rates of the CSF vaccine and spleen-borne vaccine in pig farms were 71.1% and 28.9%. The dosage of swine fever vaccine for swine farms was 1.2-6 times higher than the recommended dose, that of growing fattening pigs was 1 ~ 4 times of the recommended dose, and the dose of government-supplied vaccine in pig farms was higher than that of commercial vaccine (52.6%) in 20 pig farms and 47.4% (18) pigs in 18 pig farms; 158 (19.1%) negative sera and 609 positive sera (73.5% ). It shows that the vaccine against classical swine fever in Northwest Hubei Province is mainly supplied by the government for the vaccine against Hog Cholera virus. The immune effects of different farms vary greatly, and the immunization program needs to be standardized to strengthen the detection of immune antibody to reduce the risk of the disease.