中国动物检疫2016，Vol.33Issue(8)：17-20,4.DOI:10.3969/j.issn.1005-944X.2016.08.005
重庆市2012-2015年新城疫流行病学监测
Epidemiological Investigation of Newcastle Disease Virus in Chongqing City during 2012-2015
冯超 1陈忠琼1
作者信息
- 1. 重庆市动物疫病预防控制中心，重庆 401120
- 折叠
摘要
Abstract
Etiological detection on Newcastle Disease Virus(NDV)was carried out in Chongqing from 2012 to 2015. 15 930 pharyngeal, cloacal andenvironmental swab samples randomly collected from clinical health poultry in 561 poultry farms of 23 districts in Chongqing were tested byfluorescence RT-PCR,and epidemiological investigation was conducted towards flocks from which positive samples were detected. The etiological detection results showed that 228 samples were NDV positives with avirus detection rate at individual level of 1.43%,and 53flocks were NDV positives with a virus detection rate atflock of 9.45%. According to the results of epidemiological investigation,there were different levels of infection on NDV in Chongqing during 2012—2015,and the virus detection rate declined year by year. The virus could be detected all the year round,but the virus detection rate was relatively higher in spring, winter and later autumn. The virus detection rate of samples from different sources,different kinds and different day-old poultry were different. The virus detection rate of samples from markets was the highest,and the second was samples from the small and medium-sized farms. The virus detection rate of pigeons was higher than that of other poultry. Positive samples of layers were mainly from 120~300 days old chicken,while those of broilers were mainly from 40~120 days old ones. The virus detection rate of different areas were different. The virus detection rate of west Chongqiong was higher than that of the southeast and southwest of Chongqiong. The results indicated that the highest risk of infection and spreading of ND were at markets,as well as on small and medium sized farms of Chongqing. This suggests that NDV surveillance and control should be enhanced.关键词
新城疫病毒/病原学检测/流行病学调查Key words
Newcastle disease virus/etiological detection/epidemiological investigation分类
农业科技引用本文复制引用
冯超,陈忠琼..重庆市2012-2015年新城疫流行病学监测[J].中国动物检疫,2016,33(8):17-20,4.
