The aim of the present study was to investigate the effect of non-protein components(AEVA-S),crude protein hydrolysates and their fractions from aqueous extract from velvet antler(AEVA) on murine splenocytes proliferation.AEVA-S and crude protein hydrolysates were fractionated by HPLC and ultrafiltration,respectively.The effect of each fraction on the proliferation of murine splenocy tes was detected by WST-8.The non-protein components were preliminary identified by high resolution mass spectrometry.The res...