Protease activities were determined in different parts of digestive organs in largemouth bass(Micropterus salmoides) at different temperature,pH and casein concentration by means of enzymological analysis.

• 从酶学分析角度研究了大口黑鲈Micropterus salmoides主要消化器官蛋白酶的活力分布,以及不同温度、pH和底物浓度条件下其胃、幽门盲囊、肠中蛋白酶的活力变化。