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The effects of starvation upon protein turnover in red and white myotomal muscle of rainbow trout, Salmo gairdneri Richardson
Author(s) -
Loughna P. T.,
Goldspink G.
Publication year - 1984
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.1095-8649.1984.tb04869.x
Subject(s) - rainbow trout , biology , salmo , starvation , protein turnover , medicine , protein biosynthesis , endocrinology , muscle protein , zoology , fish <actinopterygii> , fishery , biochemistry , skeletal muscle
Protein synthesis rates of both red and white muscle were measured using a constant infusion technique in fed and starved rainbow trout over a period of 2 months. In both tissues, rates of protein synthesis fell during starvation although the fall was more rapid in white than in red muscle. The reduced rates of protein synthesis were correlated to a reduced level of RNA in the tissues and a lower rate of translation of the RNA present. Estimated rates for protein degradation in white muscle showed a marked initial increase but with more prolonged starvation the degradation rate become only slightly greater than that in the fed fish.