本文报道了印度三种鲤科鱼类鱼种。即:厚唇鲅Catla catla(Hamilton),鲮鱼Labe orohita(Hamilton)和印度鲮Cirrhinus mrigala(Hamilton),对嗜水产气单胞菌的阴性溶血素的阴性变异株进行免疫反应。厚唇鲅具有很高的抗体效价,其次是印度鲮和鲮鱼。免疫后的鱼对同源攻毒表现出很好的保护性。并且印度鲮和鲮鱼对异源攻毒也具有中等保护性。(厚唇鲅对异源攻毒的保护性未试) This article reports on three Indian carp species. Namely: Cat la catla (Hamilton), Labe orohita (Hamilton) and Cirrhinus mrigala (Hamilton), immunoreactive with negative strains of negative hemolysin of Aeromonas hydrophila. Thick lip 鲅 has high antibody titer, followed by Indian 鲮 and 鲮 fish. The immunized fish showed good protection against homologous challenge. And Indian catfish and catfish are also moderately protective against heterologous attacks. (Thick lip 鲅 protective against heterologous challenge untested)