A.滴鼻 B.點眼 C.飲水 D.肌注
A.精神亢奮 B.輕度至重度呼吸道癥狀 C.采食量下降 D.蛋雞產(chǎn)蛋量下降
A.Avian InfluenzaB.Avian Leukosis VirusC.Newcastle DiseaseD.Marek’s Disease