Investigation on pseudorabies prevalence in Chinese swine breeding farms in 2013-2016

被引：38

作者：

Liu, Yingyi ^{[1
]}

Zhang, Shuo ^{[1
]}

Xu, Qi ^{[1
]}

Wu, Jiajun ^{[1
]}

Zhai, Xinyan ^{[1
]}

Li, Shuo ^{[1
]}

Wang, Jing ^{[1
]}

Ni, Jianqiang ^{[1
]}

Yuan, Lin ^{[1
]}

Song, Xiaohui ^{[1
]}

Zhao, Bolin ^{[1
]}

Zhou, Zhi ^{[1
]}

Wang, Chuanbin ^{[1
]}

Yang, Lin ^{[1
]}

机构：

[1] China Anim Dis Control Ctr, OIE Porcine Reprod & Resp Syndrome Reference Lab, 20 Maizidian St, Beijing 100125, Peoples R China

来源：

TROPICAL ANIMAL HEALTH AND PRODUCTION | 2018年 / 50卷 / 06期

关键词：

Pseudorabies (PR); Pseudorabies virus (PRV); Prevalence; China; Antibody; Eradication; AUJESZKYS-DISEASE; VIRUS; ERADICATION;

D O I：

10.1007/s11250-018-1555-1

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

Pseudorabies (PR) has been prevalent in Chinese swine breeding farms since the outbreak at the end of 2011. For investigating current prevalence of PR, a nationwide surveillance has been performed in this study. The swine serum samples were collected from 93, 100, 92, and 91 swine farms in China during 2013-2016, respectively. Since the extensive use of gE-deleted pseudorabies virus (PRV) vaccine, we could apply the PRV-gE antibody for determining wild-type virus infection and the PRV-gB antibody for evaluating vaccine immunization. The results were concluded as follows: (1) Nationally, the positive rate of PRV-gB was maintained at a high level (> 90%), while the positive rate of PRV-gE continued to decrease (from 22.17 to 13.14%). (2) The positive rates of PRV-gE were greatly varied in different geographical regions and swine farms (0 similar to 100%), while the positive rate of PRV-gB was generally high (> 90%). (3) The number of imported PRV attenuated vaccines were about twice that of domestic PRV attenuated vaccines, while the positive rate of PRV-gB was not significantly different (P > 0.05). (4) The performance of PR eradication developing or developed farms was better than the performance of common farms, with higher positive rate of PRV-gB (> 90%) and much lower positive rate of PRV-gE (nearly 0%).

引用

页码：1279 / 1285

页数：7

共 14 条

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