Crude digestive enzymes were produced from the supernatant by centrifuging homogenized solution of the fish bodies, and the activities of protease, amylase and lipase were analyzed.

• 鱼体匀浆、离心后的上清液作为粗酶液用以测定蛋白酶、淀粉酶和脂肪酶等消化酶活力，还测定了粗蛋白、粗脂肪等主要体成分，并统计了生长指标。