武汉市新洲区2021年高致病性禽流感和新城疫免疫抗体监测数据浅析

Analysis of Surveillance Data of Highly Pathogenic Avian Influenza and Newcastle Disease Immune Antibodies in Xinzhou District, Wuhan City in 2021

摘要:

高致病性禽流感（highly pathogenic avian influenza, HPAI）和新城疫（newcastle disease, ND）等烈性传染病对养禽业危害严重，是养禽业需重点防控的疾病，其中HPAI是国家规定的强制免疫疫病。武汉市新洲区为家禽养殖大区，有规模禽场350余家，养殖规模近1140万只。为了解2021年度武汉市新洲区规模养殖场高致病性禽流感和新城疫免疫抗体合格率，武汉市新洲区农业技术推广服务中心连续12个月对辖区内规模鸡场进行蛋样抽检，运用血凝和血凝抑制试验，分别检测了高致病性禽流感H5亚型、H7亚型和新城疫的免疫抗体。结果显示，高致病性禽流感H5亚型、H7亚型和新城疫的整体免疫抗体合格率分别为94.1%、96.4%和88.9%，均达到了农业农村部规定的免疫抗体合格率不低于70.0%的标准。

Abstract:

Severe infectious diseases such as highly pathogenic avian influenza (HPAI) and Newcastle disease (ND) are serious hazards to the poultry industry, and they are diseases that need to be prevented and controlled in the poultry industry. Among them, HPAI is a compulsory immunization disease stipulated by the state. Xinzhou District of Wuhan City is a large poultry breeding area, with more than 350 largescale poultry farms and a breeding scale of nearly 11.4 million birds. This article is to understand the pass rate of highly pathogenic avian influenza and Newcastle disease immune antibodies in largescale farms in Xinzhou District, Wuhan City in 2021. The Xinzhou District Agricultural Technology Extension Service Center of Wuhan City has conducted egg sample inspections on largescale chicken farms in the area for 12 consecutive months. Using hemagglutination and hemagglutination inhibition tests, the highly pathogenic avian influenza H5 subtype and H7 subtype were detected respectively. and Newcastle disease immune antibodies. The results showed that the qualified rates of overall immune antibodies against highly pathogenic avian influenza H5 subtype, H7 subtype and Newcastle disease were 94.1%, 96.4% and 88.9%, respectively. All of these have reached the standard of not less than 70.0% for the pass rate of immune antibodies stipulated by the Ministry of Agriculture and Rural Affairs.