CAJ | 학술논문

本文针对发生腹泻疫情的某猪场开展了实验室检测和流行病学调查，实验室检测表明该疫情的病原为猪流行性腹泻病毒。流行病学调查显示，此次腹泻疫情于2013年11月份开始暴发，2014年3月份结束，发病猪的种类具有明显的次序，育肥猪首先发生，其次是母猪，新生仔猪最后发病；发病率和死亡率与猪的种类、日龄密切相关，育肥猪和母猪发病后仅出现腹泻症状而不死亡，仔猪发病后腹泻症状明显而且死亡率随着年龄的增长急剧下降，3日龄以下仔猪死亡率可达100%，1周龄仔猪死亡率降至72.73%，12日龄仔猪死亡率仅有10%。对猪场风险因素分析表明，饲料车辆直接进入猪场、卖猪车辆与饲养人员接触、粪便通道没有封闭、饲养人员流动等是影响此次腹泻疫情的高风险因素，通过降低高风险因素很好地控制了疫病。
본문침대발생복사역정적모저장개전료실험실검측화류행병학조사，실험실검측표명해역정적병원위저류행성복사병독。류행병학조사현시，차차복사역정우2013년11월빈개시폭발，2014년3월빈결속，발병저적충류구유명현적차서，육비저수선발생，기차시모저，신생자저최후발병；발병솔화사망솔여저적충류、일령밀절상관，육비저화모저발병후부출현복사증상이불사망，자저발병후복사증상명현이차사망솔수착년령적증장급극하강，3일령이하자저사망솔가체100%，1주령자저사망솔강지72.73%，12일령자저사망솔부유10%。대저장풍험인소분석표명，사료차량직접진입저장、매저차량여사양인원접촉、분편통도몰유봉폐、사양인원류동등시영향차차복사역정적고풍험인소，통과강저고풍험인소흔호지공제료역병。
A epidemic survey and laboratory detection were carried out for a pig farm which occurred diarrhea. The detection of virus was confirmed the epidemic agent was porcine epidemic diarrhea virus. Further information of survey showed that this outbreak of diarrhea took place during Nov 2013 and Mar 2014 in sequence of fattening pigs,sows and piglets. However,the morbidity and mortality of different pigs were closely related to the pieces and birth days. Fattening pigs and sows had no deaths although they had been infected,while the piglet less than 3 old days had 100 percent mortality. If the piglets grown up to one week and 12 days,the mortality would drop to 72.73% and 10%separately. The risk analysis indicated that vehicles directly went into pig farms,a closed contact with their keepers by selling pigs,unclosed transfer channel of feces and urine,circulating of feed workers were all high risk factors influencing the diarrhea outbreak,which could be reduced to control the disease.