摘要：猪繁殖与呼吸综合征是由病毒引起的猪的一种繁殖障碍和呼吸系统的传染病，其发病特征为母猪厌食、发热，妊娠后期发生流产，产死胎和木乃伊胎；仔猪发生呼吸系统疾病且大量死亡。其中高致病性毒株还可以引起成年猪发热、皮肤发红、呼吸困难和急性死亡。由于部分病猪耳部发绀变蓝，所以又称为“蓝耳病”。蓝耳病是目前养猪业里最多见的多发病，病猪感染本病后极易继发其他细菌或病毒性疾病，使得临床症状复杂，表现形式繁多，极大地影响着母猪繁殖性能和健康，降低仔猪的成活率，经常给我国养猪行业造成巨大的经济损失。本研究对规模化养猪场蓝耳病的临床症状进行了观察，并对可能引发疾病的原因进行了统计分析，提供治疗方法和制定预防措施，为预防和治疗蓝耳病提供参考价值。

关键词：蓝耳病；临床症状；发病原因；治疗方法；预防措施

The current situation and prevention and control measures of blue ear disease in large scale pig farms

Abstract：Porcine reproductive and respiratory syndrome is a kind of reproductive disorder and respiratory disease caused by virus, which is characterized by anorexia and fever of the sows, abortion in the late pregnancy, the birth of stillbirth and mummification.The piglets have respiratory diseases and a large number of deaths. Highly pathogenic strains can also cause fever, redness, dyspnea and acute death in adult pigs.Because the ears of some sick pigs are cyanotic and blue, they are also known as "blue ear disease".Blue ear disease is the most common disease in the pig industry at present. After infected pigs, it is easily secondary to other bacterial or viral diseases, which makes the clinical symptoms complicated and various forms. It greatly affects the reproductive performance and health of the sows and reduces the survival rate of piglets. It often causes huge economic losses to the pig industry in China.In this study, the clinical symptoms of blue ear disease in large-scale pig farms were observed, and the possible causes of the disease were statistically analyzed, treatment methods and preventive measures were provided to provide reference value for the prevention and treatment of blue ear disease.

Key words: blue ear disease;clinical symptoms;cause of disease;therapeutic method;preventive measure

目  录

摘要1

关键词1

Abstract1

Key words1

引言（或绪论）1

1材料与方法2

1.1临床症状观察 2

1.2淘汰病死猪数据的收集2

1.3患病猪资料卡收集 2

2结果与分析 2

2.1临床症状 2

2.2临床发病情况统计 8

2.3蓝耳病死猪的个体资料分析 8

3讨论 9

3.1诊断9

3.1.1临床诊断 9

3.1.2实验室诊断 9

3.1.3鉴别诊断 9

3.2发病原因分析  10

3.2.1引种因素  10

3.2.2 饲养环境因素 10

3.2.3饲料因素  10

3.2.4药物因素  10

3.2.4免疫因素  10

3.3治疗措施  11

3.3.1西医疗法  11

3.3.2中医疗法  11

3.3.3中西医结合疗法  11

3.3.4辅助治疗  11

3.4预防措施  11

3.4.1净化种源  12

3.4.2接种疫苗  12

3.4.3中药预防  12

3.4.4综合措施  12

3.5小结  13

致谢13

参考文献13

规模化养猪场蓝耳病的现状及其防控措施

猪蓝耳病，本病以妊娠母猪中后期的繁殖障碍，即流产，产死胎、木乃伊胎及各种年龄猪特别是仔猪的呼吸道疾病为特征，现已经成为规模化猪场的主要疫病之一。

本病最早于1987年在美国中西部发现，随后的几十年中，世界各地相继暴发和流行此病，并造成了严重的经济损失，已经成为影响世界养猪业发展的最严重疫病之一。随着我国养猪业的飞速发展，蓝耳病的发病率呈上升趋势，且由于存在继发疾病现象，治疗难度较大，极大影响着母猪的生产性能和仔猪成活率，严重损害了养猪场的经济效益，对我国养猪行业造成了不可估量的损失[1]。本研究对规模化养猪场猪感染蓝耳可能的原因进行了统计分析，观察其发病临床症状，对发病原因、诊断方法以及防治措施进行分析讨论，为养猪场防控蓝耳病提供相关参考。