Investigation on the Production Performance of gE Antibody Positive Sows in Pig Farms Infected with Wild Type Pseudorabies Virus |
| |
| Authors: | YU Xuexiang ZHU Xianjing SUN Qi KU Xugang LUO Rui FAN Shengxian HE Qigai |
| |
| Institution: | 1. College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China;2. State Key Laboratory of Agricultural Microbiology, Wuhan 430070, China;3. The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China |
| |
| Abstract: | Pseudorabies (PR) is caused by the Pseudorabies virus (PRV). It is an acute and hot highly contagious disease infecting livestock and a wide range of wild animals. In order to investigate the relationship between latent infection of Pseudorabies virus and sow production performance，this study collected production parameters of first-parity sows with wild virus gE positive and negtive in a Pseudorabies positive stable intensive farm, including total litter size, healthy litter size, weak litter size, stillbirths, mummified fetus, litter weight, number of weaning live, number of weaning qualified and weaning weight. And compared the production performance of PRV gE antibody negative and positive sows in the same intensive pig farm. The study showed that each PRV gE antibody negative sow could produce 11.96 live piglets per parity. Additionally, PRV gE antibody negative sow could provide more alive, weaning and weaning qualified piglets per parity than infection sows, which were 0.63, 0.18 and 0.28, respectively. Although the average birth weight and average weaning weight of piglets produced by PRV gE antibody positive sows were higher than those produced by negative sows, the weaning qualified rate of antibody negative sows was higher than that of antibody positive sows, indicating that the weaning live piglets produced by antibody negative sows had higher uniformity. In summary, the production performance of PRV gE antibody positive sows was lower than that of the negative sows. Eradication of PR can bring higher profit to the pig farm. Pig farm should actively eradicate the PR. |
| |
| Keywords: | Pseudorabies intensive pig farm infection with the wild virus production perfor-mance |
|
| 点击此处可从《畜牧兽医学报》浏览原始摘要信息 |
| 点击此处可从《畜牧兽医学报》下载免费的PDF全文 |
|
