2021年北京市种鸡场禽网状内皮组织增殖病和禽白血病监测  

Monitoring of Reticuloendotheliosis and Avian Leukosis in Chicken Breeding Farms in Beijing City in 2021

作　　者：张跃 李刚 沈光年 吴惠明 周德刚 刘晓冬 王慧强 程敏姮 傅彩霞 杜鹃 吴迪 李蕊 李志军 赵浩军 Zhang Yue;Li Gang;Shen Guangnian;Wu Huiming;Zhou Degang;Liu Xiaodong;Wang Huiqiang;Cheng Minheng;Fu Caixia;Du Juan;Wu Di;Li Rui;LiZhjun;Zhao Haojun(Beijing Animal Disease Prevention and Control Center,Beijing 102629,China)

机构地区：[1]北京市动物疫病预防控制中心,北京102629

出　　处：《中国动物检疫》2023年第11期25-29,共5页China Animal Health Inspection

摘　　要：为了解北京市种鸡场禽网状内皮组织增殖病病毒(REV)和禽白血病病毒(ALV)的流行情况,采用ELISA方法,对2021年从9个区27个种鸡场采集的2660份血清和2660份蛋液样品分别进行了REV抗体和ALVp27抗原监测。监测结果显示:2021年北京市种鸡场的REV抗体和ALVp27抗原个体表观阳性率分别为33.83%和1.54%,真实阳性率分别为34.53%(95%CI:32.72%~36.33%)和1.57%(95%CI:1.10%~2.05%);群体表观阳性率分别为81.48%和29.63%,真实阳性率分别为83.14%和30.23%。除第四季度未检出REV抗体阳性外,其他季度均检出这2种病原,其中第三季度ALV个体阳性率最高(4.86%),与其他季度差异有统计学意义(P<0.05),第二季度REV个体阳性率最高(85.40%),不同季度间的REV个体阳性率差异显著(P<0.05)。祖代群和父母代群均检出REV抗体和ALVp27抗原阳性个体,且阳性率差异均有统计学意义(P<0.05)。结果表明,北京市种鸡场REV和ALV分布广泛,感染较严重,净化效果不佳,存在病原传播风险。结果提示,北京市各种鸡场应高度重视这两种疫病的防控,加快推进种群净化工作。本次监测结果为北京市REV和ALV的净化及其感染的防控提供了依据。In order to investigate the status of reticuloendotheliosis virus(REV)and avian leukosis virus(ALV)prevalent in chicken breeding farms in Beijing,2660 serum samples and 2660 egg liquid samples collected from 27 farms across 9 districts in 2021 were respectively monitored for REV antibody and ALV p27 antigen using ELISA method.The results revealed that,for REV antibody and ALV p27 antigen,the apparent individual positive rates were 33.83%and 1.54%,respectively,with respective true positive rates of 34.53%(95%CI:32.72%-36.33%)and 1.57%(95%CI:1.10%-2.05%);and the apparent population positive rates were 81.48%and 29.63%,respectively,with respective true positive rates of 83.14%and 30.23%.The two kinds of pathogens were detected out in all quarters except the fourth one when no REV antibody was detected,specifically,the individual positive rate of ALV was highest(4.86%)in the third quarter,with a statistically significant difference from that in other quarters(P<0.05),while the individual positive rate of REV was highest(85.40%)in the second quarter,with significant difference in different quarters(P<0.05).Individuals positive for REV antibody and ALV p27 antigen were detected out from both grandparent and parental generations,and the difference in positive rates was statistically significant(P<0.05).In conclusion,REV and ALV were seriously and widely prevalent in the farms in Beijing due to poor purification,posing a risk of pathogen transmission.All farms were thus recommended to give top priority to the prevention and control of the two diseases,and to push forward the purification for the chicken population.A basis was provided by the results of monitoring for future prevention,control and purification of REV and ALV infection in Beijing.

关 键 词：禽网状内皮组织增殖病 禽白血病 种鸡场 监测 

分 类 号：S858.31[农业科学—临床兽医学]