2018-2023年云南省玉溪市家禽新城疫病原监测及免疫效果评估  

Pathogen Surveillance and Evaluation of Immune Effect for Avian Newcastle Disease in Yuxi City of Yunnan Province from 2018 to 2023

作　　者：宋诗雅 罗晓燕 徐聪 杨曦 杨秋楠 李晶 杨耀兰 张晓舟 董路 吕嵘 段博芳 Song Shiya;Luo Xiaoyan;Xu Cong;Yang Xi;Yang Qiunan;Li Jing;Yang Yaolan;Zhang Xiaozhou;Dong Lu;Lyu Rong;Duan Bofang(Yuxi Center for Animal Disease Prevention and Control,Yuxi6i 53100,Yunnan,China;Yunnan Center for Animal Disease Prevention and Control,Kunming 650201,Yunnan,China)

机构地区：[1]玉溪市动物疫病预防控制中心,云南玉溪653100 [2]云南省动物疫病预防控制中心,云南昆明650201

出　　处：《中国动物检疫》2024年第12期39-43,共5页China Animal Health Inspection

摘　　要：为了解云南省玉溪市家禽新城疫(ND)的免疫效果及流行情况,2018-2023年共采集37940份禽血清样品和22737份棉拭子样品,分别采用HA-HI试验和荧光定量RT-PCR方法进行了新城疫病毒(NDV)免疫抗体及核酸检测。结果显示:2018-2023年玉溪市NDV平均免疫抗体合格率为86.42%,规模场、散养户和活禽市场分别为95.26%、69.31%、89.68%,9个县(市、区)的免疫抗体合格率介于64.96%~99.43%;2018-2023年NDV核酸阳性率为0.49%,规模场、活禽市场和家禽定点屠宰场分别为0.61%、0.32%、0,9个县(市、区)的NDV阳性率介于0.29%~0.87%;不同年份、不同类型场点、不同地区之间的免疫抗体合格率和病原阳性率差异均具有统计学意义(P<0.05)。结果表明:玉溪市家禽ND整体免疫效果较好,流行率较低,但散养户及部分县区ND免疫及防控效果不佳,仍有散发疫情的可能。建议持续跟踪NDV免疫抗体动态,定期开展ND病原学监测,及时补免、补防,防控疫情发生。In order to identify the immune effect and prevalence of Newcastle disease(ND)in Yuxi City,Yunnan Province,a total of 37940 poultry serum samples and 22737 swab samples were collected from 2018 to 2023,immune antibodies and nucleic acids of Newcastle disease virus(NDV)were detected using HA-HI test and fluorescence quantitative RT-PCR,respectively.The results showed that the average qualification rate of immune antibodies was 86.42%across the city from 2018 to 2023,and 95.26%,69.31%and 89.68%in intensive farms,freerange households and live poultry markets,respectively,the qualification rate ranged from 64.96%to 99.43%in 9 counties(cities/districts);the positive rate of NDV nucleic acids was 0.49%,specifically,0.61%,0.32%and 0 in intensive farms,live poultry farms and designated poultry slaughterhouses,respectively,and the positive rate ranged from 0.29%to 0.87%in the 9 counties(cities/districts);the differences of qualification rate of immune antibodies and positive rate of pathogens were of statistical significance(P<0.05)in different years,types of premises and regions.In conclusion,the immune effect of ND was good in Yuxi in general,with low prevalence rate,although it was relatively poor in free-range households and some counties/districts,with a probability of sporadic outbreak.It was recommended to continue to follow up the dynamics of NDV immune antibodies,regularly carry out etiological surveillance for ND,and timely implement the supplement vaccination and preventive measures to prevent any potential occurrence of outbreak.

关 键 词：新城疫 抗体监测 病原监测 玉溪市 

分 类 号：S858.31[农业科学—临床兽医学]