2016年春季山西部分种猪场乳猪暴发流行性腹泻的调查

发布时间：2018-02-04 12:15

本文关键词： 乳猪腹泻猪流行性腹泻病毒 IgA　出处：《畜牧与兽医》2017年02期 　论文类型：期刊论文

【摘要】：2016年春季山西部分种猪场乳猪暴发腹泻,通过在山西太原、祁县、介休、昔阳、临汾、翼城、离石、朔州8个地市的10个临床表现腹泻症状的规模化种猪场进行调研,对乳猪病死情况进行了统计分析,并采集39份病死猪的小肠内容物进行猪流行性腹泻病毒(PEDV)、猪传染性胃肠炎病毒(TGEV)检测;同时采集109份血清和85份乳汁进行PEDV IgA抗体检测。结果显示:1—3月份10个猪场共有8 326头乳猪发生腹泻,死亡6 266头,死亡率为75.26%;病原检测PEDV阳性率为64.1%,TGEV阳性率为2.56%;血清中PEDV IgA抗体的阳性率为32.11%,乳汁中PEDV IgA抗体的阳性率为96.47%。病原检测结果表明,2016年春季山西省规模化种猪场乳猪腹泻的主要病原为PEDV,乳汁中PEDV IgA抗体水平与PEDV疫苗免疫效果或野毒感染呈正相关。
[Abstract]:In 2016, diarrhea broke out in some pig farms in Shanxi Province, through Taiyuan, Qi County, Jiexiu, Xiyang, Linfen, Yicheng, Lishi. Ten large-scale pig farms with clinical symptoms of diarrhea were investigated in 8 cities of Shuozhou, and the disease and death of suckling pigs were analyzed statistically. The intestinal contents of 39 dead pigs were collected for detection of epidemic diarrhea virus (PEDVV) and infectious gastroenteritis virus (TGEV). At the same time, 109 serum samples and 85 milk samples were collected for PEDV IgA antibody detection. The results showed that 8 326 pigs had diarrhea and 6 266 died in 10 pig farms from January to January. The mortality rate was 75.26; The positive rate of PEDV detected by pathogen was 64.1% and the positive rate of TGEV was 2.56%. The positive rate of PEDV IgA antibody in serum was 32.11% and that of PEDV IgA antibody in milk was 96.47%. In 2016, the main pathogen of diarrhea in large scale pig farms in Shanxi Province was PEVV. The level of PEDV IgA antibody in milk was positively correlated with the immune effect of PEDV vaccine or the infection of wild virus.
【作者单位】：山西省农业科学院畜牧兽医研究所;
【基金】：山西省科技攻关项目(20140311020-2-A);山西省科技攻关项目(20150311018-3)
【分类号】：S858.28
【正文快照】： 猪流行性腹泻病(porcine epidemic diarrhea,PED)是由猪流行性腹泻病毒(porcine epidemic diar-rhea virus,PEDV)引起的一种高度接触性传染病,发病猪群以严重腹泻、呕吐及脱水为主要症状,各日龄和品种的猪均易感染,尤其哺乳仔猪发病率可高达100%[1-2]。1978年,该病首次被发现

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