Digestive enzyme activities in Adriatic sturgeon Acipenser naccarii and rainbow trout Oncorhynchus mykiss. A comparative study

Studies on the digestive secretions in fish can elucidate certain aspects of their nutritive physiology and thereby resolve some nutritional problems, such as matching of an artificial diet to the nutritional needs of the fish. The aim of the present study was to analyse the digestive protease, amyl...

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Bibliographic Details
Published in:	Aquaculture Vol. 250; no. 1; pp. 391 - 398
Main Authors:	Furné, M., Hidalgo, M.C., López, A., García-Gallego, M., Morales, A.E., Domezain, A., Domezainé, J., Sanz, A.
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier B.V 14-11-2005 Elsevier Science Elsevier Sequoia S.A
Subjects:	Acipenser Acipenser naccarii Adriatic sturgeon Agnatha. Pisces Amylase amylases anadromous fish Animal aquaculture Animal productions Biological and medical sciences carbohydrate metabolism carnivores Comparative studies Digestive enzymes Digestive system enzyme activity Enzymes Fish fish culture Fundamental and applied biological sciences. Psychology General aspects Lipase lipid metabolism mariculture marine fish Nutrition Oncorhynchus mykiss Protease protein metabolism proteinases Rainbow trout sturgeon triacylglycerol lipase trout Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution Spain Digestive enzymes Adriatic sturgeon Amylase Lipase Protease Rainbow trout Oncorhynchus mykiss Vertebrata Enzymatic activity Pisces Acipenser sturio Comparative study Aquaculture
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Summary:	Studies on the digestive secretions in fish can elucidate certain aspects of their nutritive physiology and thereby resolve some nutritional problems, such as matching of an artificial diet to the nutritional needs of the fish. The aim of the present study was to analyse the digestive protease, amylase, and lipase activity in the Adriatic sturgeon and compare it with that of rainbow trout. The results show that the sturgeon is not only capable of digesting fat and protein, like any other carnivorous fish, but can also digest carbohydrates at levels characteristic of an omnivore. In turn, the proportion of acid-protease enzymes indicates the need for major gastric digestion.
Bibliography:	http://www.elsevier.com/locate/issn/00448486 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0044-8486 1873-5622
DOI:	10.1016/j.aquaculture.2005.05.017