牛猝死症诊断和防制

经流行病学调查，病原分离鉴定，病理学检查，临床症状观察确定黑龙江省猝死症的主要病原为Ａ，Ｃ型魏氏梭菌。在部分死亡病例中，也有因误食灭鼠药氟乙酰胺而引起的中毒，但数量较少，根据病原分离结果，魏氏梭菌和腐败梭菌，魏氏梭菌和巴氏杆菌，魏氏杆菌和链球菌可形成混合感染，使魏氏梭菌病疫情更加严重而呈地方性流行，这是近几年来牛魏氏梭菌病的新特点。

DIAGNOSIS AND PREVENTION ON BOVINE SUDDEN DEATH SYNDROME

According to the epidemiology investigation, pathogen separation and test, pathology examination, clinical observation, the main pathogen of Sudden Death Syndrome in Heilongjiang province was Clostridium welchii A and C. Parts of these dead bovines were dead of eating Fluoroacetamide for eliminating rats, but the count was very few. Clostridium Welchii A and C could develop mixed infection with Clostridium Septicum and Pasteurelleae or Streptococci to make the disease serious and enzootic. It was a new character on the bovine Clostridium Welchii disease recent years. Bovine Sudden Death Syndrome was only a syndrome not a kind of independence disease because there were many factors which result Sudden Death Syndrome. The morbidity and mortality came down distinctly after the Clostridium Welchii vaccine had been used in herds.