Clostridial enteritis of pigs with different ages was identified from4 farms by the bacteriology, determination of the toxin and its pathogenicity as w ell as clinical signs.

• 对4个规模化猪场不同日龄发病猪进行了病原学、力及毒素测定,并结合临床综合诊断确定为猪魏氏梭菌病。