产蛋下降综合征 Eggs drop syndrome (EDS76) 传染性法氏囊病 Infectious bursal disease (IBD) 传染性喉气管炎 Infectious laryngotracheitis, ILT 传染性支气管炎 Infectious bronchitis, IB 鸡毒支原体感染 Mycoplasma gallisepticum infection 鸡马立克病 Avian marek's disease (MD) 新城疫 Newcastle Disease 鸭病毒性肝炎 Duck Virus Hepatitis, DVH 鸭瘟 Duck Plague