【摘要】 从养殖虾的肝、鳃分离的细菌进行生理生化鉴定、药物敏感及感染试验等 ,结果表明：经细菌学鉴定二株病原菌，均为嗜水气单胞菌 Aeromonas hydrophila；对虾的半数致死量 LD50分别为 1.68× 104个 /只、 3.95× 103个 /只；细菌对药物的敏感性有明显差异。更多还原

【Abstract】 The bacterial disease of river prawn（ Macrobrachium nipponense） is one of the major diseases in river prawn culture industry in China. The disease mainly the adult does.The pathogens,which are isolated from the liver,gill of river prawn and identified by the bacteriological method,are Aeromonas hydrophlia ;The LD50 were 1.68× 104 cfu/prawn, 3.95× 103 cfu/prawn respectively; The sensitivity of varied bacteria to antibiotics are very different.更多还原