A strain of Gram-negative bacillus was isolated from lung of pigs from a county in Gansu.The isolate was identified as Pasteurella multocida based on biochemical characteristics.

• 摘要从甘肃省某县一猪场病死猪剖解肺部分离，经过涂片镜检观察，为革兰氏染色为阴性的球杆菌，经过生化试验鉴定初步定为多杀性巴氏杆菌。