仔猪大肠杆菌所致胃肠炎临床诊治

Clinical Diagnosis and Treatment of Gastroenteritis Caused by Escherichia Coli in Piglets

大肠杆菌是自然环境中的一种常在菌群,不同血清型的大肠杆菌的致病性存在很大差异性,致病性大肠杆菌侵染仔猪后,年龄越小的猪会表现出越严重的腹泻症状,引发胃肠道出现严重病变,危及猪群健康生长。大肠杆菌引发的胃肠炎传播速度较快,养殖场的发病率达到80%~90%,致死率高达30%,有时会高达100%。仔猪即便是能存活,也会表现为生长发育不良,养殖周期变长,饲料利用率下降,经济成本投入增加,带来的经济损失严重。结合养殖场发病情况,对病原做出有效检测的基础上,论述大肠杆菌引发胃肠炎的临床症状、病理变化,并提出相应的治疗方法。

E.Coli is one of the most common bacteria in the natural environment.The pathogenicity of different serotypes of E.coli varies greatly.The younger the pig,the more severe the diarrhea will be,it causes severe lesions in the gastrointestinal tract and endangers the healthy growth of the pig herd.The spread of gastroenteritis caused by E.Coli is rapid,the incidence rate of farm reached 80%~90%,the mortality rate reached 30%,sometimes as high as 100%.Even if the piglets can survive,they will be shown as stunted growth,longer breeding cycle,lower feed utilization rate,increased economic cost input,resulting in serious economic losses.The clinical symptoms and pathological changes of gastroenteritis caused by E.Coli were discussed on the basis of effective detection of pathogens and the incidence of disease in farms.