汉寿县高致病性猪蓝耳病活疫苗临床应用与推广情况调查

发布时间：2018-06-06 06:20

本文选题：高致病性猪蓝耳病 + 疫苗　；参考：《湖南农业大学》2015年硕士论文

【摘要】：高致病性猪蓝耳病(HP-PRRS)是由猪繁殖与呼吸障碍综合征病毒引起的一种高度传染性疾病,疫情所到之处,养猪户损失惨重。2010年-2013年,湖南省在长沙市、衡阳县、洞口县、汉寿县启动了高致病性猪蓝耳病活疫苗免疫推广项目。笔者采用入户问卷调查和搜集资料的方式对汉寿县在该项目实施前后高致病性猪蓝耳病活疫苗免疫抗体评估、临床应用效果进行调查,并选取2个规模养殖示范场进行重点分析,科学评估疫苗使用后免疫效果及存在问题,供生产者和基层动物疫病控制机构参考使用。本调查分三个部分：(1)高致病性猪蓝耳病活疫苗免疫后抗体水平的免疫效果评估。(2)汉寿县高致病性猪蓝耳病活疫苗临床应用效果调查。(3)规模养殖示范场临床应用效果调查调查结果表明,该县自2010年1月份推广应用高致病性猪蓝耳病活疫苗以来,猪群高致病性猪蓝耳病防控取得明显成效。在项目实施前,高致病性蓝耳病免疫抗体监测水平仅为21.98%,项目实施后,高致病性猪蓝耳病免疫抗体监测水平达到87.2%。并且,项目实施前后比较得出,该县猪蓝耳病发生率下降23.28个百分点,猪蓝耳病死亡率下降13.3个百分点,猪蓝耳病治疗费用平均每头下降26.51元,猪蓝耳病无害化处理费用减少99.4%,母猪淘汰率下降10.53个百分点,每头母猪年均供断奶活仔猪数增加5.33头,出栏生猪料肉比提高了0.35个系数。
[Abstract]:HP-PRRSs, a highly infectious disease caused by porcine reproductive and respiratory syndrome virus, has caused heavy losses to pig farmers in Hunan Province, Hunan Province in 2010-2013 in Changsha, Hengyang County, Dongkou County, Hanshou County started the high-pathogenic pig blue ear disease vaccine immunization promotion project. By means of household questionnaire survey and data collection, the authors evaluated the immune antibodies of live vaccine against highly pathogenic swine blue ear disease before and after the implementation of the project, and investigated the clinical application effect. Two scale breeding demonstration farms were selected to analyze the immune effect and the existing problems after the use of the vaccine, which could be used as a reference for the producers and the basic animal epidemic control agencies. This investigation is divided into three parts: 1) Immunization effect evaluation of live vaccine against highly pathogenic pig blue ear disease. (2) Hanshou county live vaccine of high pathogenic pig blue ear disease. Investigation on clinical application effect of live vaccine of high pathogenic pig blue ear disease. The results of the survey show that Since the application of live vaccine against highly pathogenic swine blue ear disease in January 2010, the prevention and control of high pathogenic pig blue ear disease in swine herd has achieved remarkable results. Before the implementation of the project, the surveillance level of high pathogenic blue ear disease immune antibody was only 21.98. After the implementation of the project, the surveillance level of high pathogenic swine blue ear disease immune antibody reached 87.22. In addition, the comparison before and after the implementation of the project showed that the incidence of blue ear disease in the county decreased by 23.28 percentage points, the mortality rate of pig blue ear disease decreased by 13.3 percentage points, and the average cost of treatment for pig blue ear disease decreased by 26.51 yuan per head. The cost of harmless treatment of blue ear disease in pigs decreased 99.4%, the elimination rate of sows decreased 10.53%, the average annual number of weaned live piglets per sow increased 5.33, and the feed / meat ratio increased 0.35 coefficients.
【学位授予单位】：湖南农业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S858.28

【相似文献】