Abstract
The effect of cholecystokinin (CCK) on the activity of peptidases (AP) and glycosidases (AG) of the intestinal mucosа in juvenile carp Cyprinus carpio has been studied. It is established that the dynamics of the activity of enzymes of different chains under the influence of hormones varies. Under the influence of exogenous CCK, AP decreases after 0.25, 0.5, 120, 144, and 168 h and AG decreases after 0.5, 48, and 96 hours compared to intact fish. A decrease in AP under the influence of CCK compared with the control is observed in 0.5 and 120 h, while that of AG occurs in 0.5, 48, 96, 120, and 144 hours after administration. The mechanisms of the effect of CCK on the activity of peptidases and glycosidases of the intestinal mucosa in fish are discussed.
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