我国规模化猪场对猪伪狂犬病的控制

The Control of PR Disease on Intensive Pig Farms in China

猪伪狂犬病是由猪伪狂犬病病毒引起的一种急性传染病。规模化猪场应根据野毒感染的严重程度采取切合实际的控制策略,疫苗免疫是重要的控制手段。常规灭活苗、常规弱毒苗、基因缺失疫苗都有不同的特点和使用范围,经过分析国内规模化猪场使用基因缺失疫苗是最好的选择。笔者在免疫程序及方式方面对有争议的问题如首免日龄、超前免疫、免疫间隔时间、滴鼻免疫等进行了分析;强调了免疫监测的重要性。提出了规模化猪场净化猪伪狂犬病的措施及可行性,总结了国内某些场成功的经验,为猪场控制该病提供实践参考。

PR is an acute infectious disease caused by PR virus. Vaccines immune is a key way to protection against PR, and we should adopt actual control measures in according to the severity degree to which it＇s infected by wild virus in intensive pig farms. There are different characters and the usage scopes of the normal vaccines for inactivated vaccine, weak poison vaccine and gene deficiency vaccine, and after a series of analysis we find out that using gene deficiency vaccine is the best choice to protection against PR at pig farms. We finally pointed out the importance of immunology monitoring after we had analyzed those Disputed issues on immune programs and methods such as the 1st immune day, no time immune day, the interval time of immune as well as immune through dropping noses. At last we put forward the measures and feasibility to perish PR disease on intensive pig farms and summarize successful experiences which are from home and abroad. We hope it can offer some great practical directions on control PR disease.