2021年河南省一级定点监测场点猪瘟免疫效果监测  

Surveillance on Immune Effect against CSF at First-grade Targeted Premises in Henan Province in 2021

作　　者：赵胜杰[1] 尼博[2] 盛敏[1] Zhao Shengjie;Ni Bo;Sheng Min(Henan Animal Disease Prevention and Control Center,Zhengzhou,Henan 450000,China;China Animal Health and Epidemiology Center,Qingdao,Shandong 266032,China)

机构地区：[1]河南省动物疫病预防控制中心,河南郑州450000 [2]中国动物卫生与流行病学中心,山东青岛266032

出　　处：《中国动物检疫》2022年第9期31-34,共4页China Animal Health Inspection

摘　　要：为了解河南省规模猪场的猪瘟免疫抗体水平,2021年对采自河南省18个地市214个一级监测场点(种猪场或年出栏量在5万头以上的商品代猪场)的6602份猪血清样品进行了猪瘟抗体检测,并按不同场点、季节、区域和生长阶段,对检测结果进行统计分析。结果显示:2021年河南省定点监测场点的猪瘟免疫抗体平均场群合格率为85.98%,平均个体合格率为87.99%;种猪场的场群合格率和个体合格率分别为89.06%和91.24%,均显著高于商品代猪场的84.67%和86.23%(P<0.05);春季个体合格率(83.58%)低于夏季(90.48%)、秋季(87.36%)和冬季(92.78%),差异明显(P<0.05);不同区域的抗体场群合格率为81.13%~92.86%,个体合格率为82.15%~93.73%,豫北地区的场群及个体合格率均最低,其中个体合格率与其他地区差异明显(P<0.05);不同生长阶段的场群合格率和个体合格率由高到低均依次为经产母猪、后备种猪、种公猪、育肥猪、保育猪和仔猪,除仔猪(场群、个体合格率分别为58.33%、65.00%)外,其余阶段的场群合格率(76.47%~94.23%)和个体合格率(81.12%~93.89%)均高于70%。结果表明:河南省监测场点猪群的猪瘟免疫情况整体较好,发病风险较低,但在持续做好猪瘟免疫的同时,应着重加强春季、豫北地区和仔猪阶段的免疫效果监测工作。In order to investigate the level of immune antibody against classical swine fever(CSF)in large-scale swine farms in Henan Province,in 2021,6602 swine serum samples were collected from 214 first-grade targeted premises(breeding farms or commercial farms with annual output more than 50000 heads)in 18 cities in the province for statistic analysis according to different premises,seasons,regions and growth stages.The results showed that average qualification rate of premise/population of immune antibody against CSF was 85.98%,and that of individual was 87.99%;the qualification rates of premise/population and individual in the breeding farms were 89.06%and 91.24%,respectively,both of which were higher than those in commercial farms(84.67%and 86.23%),with significant difference(P<0.05);the individual qualification rate in spring(83.58%)was lower than that in autumn(90.48%),fall(87.36%)and winter(92.78%),with significant difference(P<0.05);the qualification rates of premise/population ranged from 81.13%to 92.86%,and that of individual was from 82.15%to 93.73%,depending on different regions,both of which were lowest in Northern Henan,especially the individual one that was significantly different from that in other regions(P<0.05);both the rates at different growth stages were ranked as sows,reserve breeding pigs,breeding boars,finishing pigs,nursery pigs and piglets from high to low,except for piglets(both the rates were 58.33%and 65.00%,respectively),the qualification rate of premise/population(from 76.47%to 94.23%)and that of individual(from 81.12%to 93.89%)were higher than 70%.In conclusion,the status of immune in the premises was good in general with lower risk of occurrence of the disease,but it was still necessary to strengthen the surveillance on the immune effect in springs,Northern Henan and piglets.

关 键 词：猪瘟 规模猪场 免疫抗体 定点监测 

分 类 号：S851.3[农业科学—预防兽医学]