Digestive Enzymatic Activities of Amylase, Pepsin and Trypsin in an Economically Significant Carp Labeo Calbasu of Tripura, India

Abstract

To meet our daily need of highly digestible animal protein freshwater fish having greater demand in the market. So, Labeo calbasu is considered as one of such important fish species which is preferred to human population as delicious protein food. However, knowledge of growth of such fish species in commercial view point is poor. Hence, enhancement of growth rate of this fish species with regard to supplementary feed is important. For knowledge on digestive enzyme activities of this fish species different diets are being used. Assay on activities of amylase, pepsin and trypsin (determined in activity unit per 100 g fish body weight) is being done with fingerling stage of Labeo calbasu both during a period of starvation and at a period after about 08 hrs of feeding to the fish samples. During a period after about 08 hrs of feeding with non-protein rich feed (e.g, Swarno musuri rice powder) significant results are being noticed with amylase (0.43±0.04 in the stomach, 0.46±0.02 in pyloric caeca and 0.76±0.02 in the intestine), pepsin (0.03±0.02 in the stomach) and trypsin (0.05±0.04 in the stomach) as well. While protein rich-feeds (e.g., chlorella and mustard oil cake) could not show any significant effect.