猪传染性胃肠炎猪传染性胃肠炎.doc

毕业设计（论文） 题目： 猪传染性胃肠炎的诊断与防治 姓名： 学号： 二级院系部： 班级: 专业： 饲料与动物营养 指导教师： 职称： 企业导师： 职称： 猪传染性胃肠炎的诊断与防治 【摘 要】猪传染性胃肠炎是猪的高度接触传染性病毒性疾病，其病毒是冠状病毒，属于猪传染性胃肠炎病毒。不同年龄和品种的猪均易感，但尤以10日龄以内的仔猪死亡率最高，35日龄以上的仔猪在无继发感染的情况下死亡率明显下降，只有10%左右。近年来的调查表明传染性胃肠炎已经大大影响了养猪业的发展，特别是哺乳期仔猪，经常出现腹泻现象，这大大降低了断奶仔猪的成活率。通过查询大量书籍、网络信息以及大量的文献资料，本综述从猪传染性胃肠炎病的病原体、流行特点、临床症状、病理变化等方面剖析了猪传染性胃肠炎，从而为更好的诊断和预防猪传染性胃肠炎提供了学习参考。 【关键词】仔猪；传染性胃肠炎；诊断? 防治[Abstract] Swine transmissible gastroenteritis of pigs are highly contagious viral disease, the virus is a coronavirus, which belongs to the porcine transmissible gastroenteritis virus. Different age and breed pigs were susceptible, but especially at 10 days of age within the piglet mortality is the highest, over the age of 35 days without excitation of piglets in case of infection mortality rates dropped significantly, and only about 10%. Recent investigation shows that transmissible gastroenteritis has significantly influenced the development of pig industry, especially the lactation period, often diarrhea phenomenon, which greatly reduces the weaned piglet survival rate. By consulting a great deal of books, network information and visited inquiries of farmers and a large amount of literatures, this review from transmissible gastroenteritis of swine disease pathogen, epidemic characteristics, clinical symptoms, pathological changes and other aspects of the transmissible gastroenteritis virus, thereby providing for better diagnosis and prevention of porcine transmissible gastroenteritis virus provides learning reference. [ Key words ] Piglets; Infectious gastroenteritis; Diagnosis; The prevention and control 随着饲养规模的不断扩大和集约化程度的不断提高，现代养猪生产中的疾病越来越多。很多疾病已经成为制约我国养猪业发展的重要因素。猪传染性胃肠炎(TGE)又称幼猪胃肠炎， 是由猪传染性胃肠炎病毒引起猪的一种以呕吐、严重腹泻和脱水