Please use this identifier to cite or link to this item: https://doi.org/10.1006/jfbi.1993.1062
Title: A quantitative study of some digestive enzymes in the rabbitfish, Siganus canaliculatus and the sea bass, Lates calcarifer
Authors: Sabapathy, U. 
Teo, L.H. 
Keywords: carbohydrases
digestive enzymes
Lares calcarifer
proteases
Siganus canaliculatus
Issue Date: Apr-1993
Citation: Sabapathy, U.,Teo, L.H. (1993-04). A quantitative study of some digestive enzymes in the rabbitfish, Siganus canaliculatus and the sea bass, Lates calcarifer. Journal of Fish Biology 42 (4) : 595-602. ScholarBank@NUS Repository. https://doi.org/10.1006/jfbi.1993.1062
Abstract: Digestive enzyme distribution and activity in the digestive tracts of the rabbitfish, Siganus canaliculatus and the sea bass, Lates calcarifer were studied. Quantitative determinations of digestive enzymes in the guts of both fishes showed that they were capable of digesting carbohydrates and proteins in their diet. The carbohydrases, amylase, laminarinase, maltase, sucrase and trehalase were detected in the rabbitfish; their activities being mainly in the stomach, intestine and pyloric caeca. Amylase, maltase, trehalase and chitinase activities were recorded in the gut of the sea bass, primarily in the intestine and the pyloric caeca. Their activities were significantly lower than those in the rabbitfish. Proteases (pepsin, chymotrypsin, elastase, leucine aminopeptidase and trypsin) were found in both the rabbit fish and the sea bass. Pepsin activity however, was higher in the sea bass; while trypsin and chymotrypsin activities were higher in the rabbitfish. The activities of the various digestive enzymes in both fishes are discussed in relation to their feeding habits. © 1993 The Fisheries Society of the British Isles.
Source Title: Journal of Fish Biology
URI: http://scholarbank.nus.edu.sg/handle/10635/106742
ISSN: 00221112
DOI: 10.1006/jfbi.1993.1062
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