肉鸡死胚中致病性大肠杆菌的分离与鉴定

Isolation and Identification of Pathogenec E. coli in Died Broiler Embryos

对大通县某鸡场孵化21d的42枚死亡鸡胚无菌采集肝脏,进行常规的细菌分离与培养,分离出8株致病性大肠杆菌,阳性率为19.05%(8/42),并对分离到的菌株采用细菌学检查、生化试验和动物试验进行鉴定。结果显示,该批死鸡胚中致病性大肠杆菌的带菌率较高,应该引起有关部门的重视。

The liver samples were collected from 42 died broiler embryos at 21 days of hatching in one chicken farm of Datong county to conduct the bacteria isolation and culture by isolated and the positive rate was 19.05% （ 8/42 ）. The isolated common method. 8 stains of pathogenec E. coli were pathogenec E. coli was identified with bacteriological examine, biochemical test and animal test. The results showed that there was higher rate of carrier of pathogenec E. coli in the died broiler embryos. The situation must be taken something seriously by relative govement department.