Avian pasteurellosis and Avian colibacillosis are frequent primary or sequential bacterial diseases in domestic poultry, which can cause significant threat and economic damage.

• 禽巴氏杆菌病、禽大肠杆菌病一直是养禽业中常发生的原发或继发性细菌病，对养禽业造成不小的威胁和损失。