Chitinase, e x o -N -a c e t y l -~-D -g l y c o s a m i n i d a s e (NAGase) and lysozyme activities were assayed in the digestive tract of 6 species of marine fishes: Myxine glutinosa (cyclostome) , Chimaera monstrosa (holocephalan) , Squalus acanthias, Etmopterus spinax, Raja radiata (elasmobranc
Studies on the role of exogenous proteolytic enzymes in digestion processes in fish
β Scribed by Konrad Dabrowski; Jan Glogowski
- Publisher
- Springer
- Year
- 1977
- Tongue
- English
- Weight
- 332 KB
- Volume
- 54
- Category
- Article
- ISSN
- 1573-5141
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β¦ Synopsis
Studies were carried out on the proteolytic activity of the fry of common carp, rainbow trout, grass carp, and whitefish, as well as on the activity of digestive organs of adult common carp and rainbow trout . Activity of exogenous enzymes in relation to endogenous ones was assessed on the basis of the proteolytic value of fish food and the activity of digestive organs . It was found that the share of proteolytic enzymes of natural food in the digestion process in fish was high . Beginning from a weight of 50-100 g for common carp and 1o g for rainbow trout, the relation between the daily enzymatic ration and the weight of fish indicates the cooperation of an approximately constant amount of exogenous enzymes .
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