【Objective】This study prepared monoclonal antibodies against gB protein of duck plague virus to provide basis for establishing diagnosis method of DPV infection and identifying antigen epitope of DPV.【Method】The DPV gBgene was cloned to establish its expression vector and conduct prokaryotic expression.DPV gB protein was purified and used to immunize 8weeks old BALB/c mice,whose splenocytes were fused with SP2/0myeloma cells for indirect ELISA and sub-clone screening.【Result】PCR amplification obtained the a...