采用聚丙烯酰胺电泳方法 ,对香鱼 (Plecoglossusaltivelis)肌肉和肝脏、脾脏及肾脏 3种免疫器官的 6种与防御机能相关的同工酶的表达进行研究 ,共分析了SOD、POD、ACP、ALP、CAT、EST等 6种同工酶的表达模式。结果表明 ,香鱼已经具有了完善的机体防御系统 ,肝脏和肾脏在香鱼的防御系统中发挥着十分重要的作用。本研究能为筛选具有较强抗病力和适应性的香鱼良种提供有价值的理论参考。 The polyacrylamide electrophoresis method was used to study the expression of six defense-related isoenzymes in muscle and muscle, liver, spleen and kidneys of three species of Pseudogastricus, and the effects of SOD, POD, ACP, ALP , CAT, EST and other 6 kinds of isozymes expression pattern. The results show that the sweetfish already has a perfect body defense system, liver and kidney play a very important role in the defense system of sweetfish. This study can provide valuable theoretical reference for screening sweet-scented alfalfa breeds with strong resistance and adaptability.