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Quantitative protein requirements of Arctic charr, Salvelinus alpinus (L)
Author(s) -
Jobling M.,
Wandsvik A.
Publication year - 1983
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.1095-8649.1983.tb04230.x
Subject(s) - salvelinus , salmo , biology , rainbow trout , arctic , salmonidae , fishery , zoology , fish <actinopterygii> , trout , ecology
Arctic charr, Salvelinus alpinus , require diets with protein energy (PE): total energy (TE) ratios of at least 0.35 in order to maintain good rates of growth. The protein requirement is, therefore, similar to that of rainbow trout, Salmo gairdneri . Protein retention efficiency (PPV) declined as the protein content of the diet was increased, the relationship being described by the equation:It is suggested that charr will maintain good rates of growth if fed on diets used for commercial culture of rainbow trout and special formulations for charr should not be necessary.