[Peptides in the regulation of digestive functions in fish].

The effect of exogenous peptides (angiotensin II, neurotensin, thyroliberin, pentagastrin, cholecystokinin, insulin) on the motor and myoelectrical activity of the sea fish digestive tract and their food behaviour was found to depend on the technique of administration and the fish species. Some peptides could change the intensity of consumption in forage fish. Specific receptors for peptides seem to exist in the fish.

[The action of thyroliberin on the myoelectric activity of the stomach in the skate and the cod].

The influence of exogenous thyrotropin-releasing hormone on the myoelectrical activity of stomach was investigated in skate and cod. The i.v.

[Effect of cholecystokinin-octapeptide on the motor function of the digestive tract of the plaice].

The influence of cholecystokinin-octapeptide on the bioelectrical features of gastro-intestinal motility in sea-water fish (plaice) was investigated in chronic experiments. I. v.