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Dietary digestibility and the influence of food components on gastric evacuation in plaice, Pleuronectes platessa L.
Author(s) -
Jobling M.
Publication year - 1981
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1981.tb05808.x
Subject(s) - pleuronectes , biology , digestion (alchemy) , gastric emptying , food science , carbohydrate , nutrient , starch , zoology , fishery , stomach , fish <actinopterygii> , biochemistry , ecology , chemistry , chromatography
Digestibility values are reported for a variety of diets fed to plaice. It was found that animal proteins were digested better than those from plant sources and the inclusion of indigestible carbohydrate (starch) led to a decrease in the efficiency of digestion and absorption of protein. The results of the digestibility trials were used to investigate the influence of various dietary parameters on gastric emptying and it was found that the gross energy content of the diet was the most important determinant of evacuation. The findings are examined in relation to published data on food intake by fishes and the implications discussed.