oftheSelectiveCultureMediumsofAeromonasHydrophila LING Hongli.LU Chengping ,CHEN Huaiqing,M A Xiangdong C~llegeofVeteriaaryMedicine·NanjingAgricultureUniversity·Nanjing210095 Abstract Eachofthe 121Aeromonas drophila strainswere cuhured on each ofthethree