The influence of temperature on the activities of digestive carbohydrases in Amur sleeper (Perccottus glenii Dyb.) during the winter

The total amylolitic activity and sucrase activity in the Amur sleeper intestine are similar to those in typical and facultative benthophages. The optimal temperature of starch hydrolysis is 50 °C. The sleeper’s carbohydrases are more tolerant to the increase in water temperature during winter than similar enzymes in cyprinids.