PMID: 11606259Oct 19, 2001Paper

Growth, protein-turnover rates and nucleic-acid concentrations in the white muscle of rainbow trout during development

The International Journal of Biochemistry & Cell Biology
Juan PeragónJ A Lupiáñez

Abstract

We have studied the growth rate, nucleic-acid concentration, protein-accumulation rate (K(G)), and several other parameters relating to protein turnover, such as the protein-synthesis (K(S)), and protein-degradation rates (K(D)), protein-synthesis capacity (C(S)), protein-synthesis efficiency (K(RNA)), protein-synthesis rate per DNA unit (K(DNA)) and protein-retention efficiency (PRE), in the white muscle of rainbow trout during development. Both growth rate and relative food intake decreased significantly with age and weight, as did the food-efficiency ratio (FER) and protein-efficiency ratio (PER). Although absolute RNA and DNA contents increased with age, their relative concentrations decreased. The RNA/DNA ratio increased sharply from 14 to 28 weeks but afterwards decreased towards initial values. Hypertrophy increased rapidly to the 28-week stage but henceforth increased much more slowly. Hyperplasia, on the other hand, continued to increase linearly, resulting in a significant four- to fivefold predominance in this type of growth at the end of the 96-week experimental period. K(G) decreased significantly with age, as did K(S), and C(S), whereas at the 14-week stage, K(D) was significantly lower than at other ages. K(RNA) ...Continue Reading

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Citations

Jul 13, 2014·Environmental Science and Pollution Research International·E KerambrunR Amara
Jun 30, 2010·Izvestiia Akademii nauk. Seriia biologicheskaia·M V ChurovaM I Shatunovskiĭ
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Aug 29, 2006·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Mónica Fernández-NavarroJosé Antonio Lupiáñez
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Sep 10, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Khalida MokhtariEva E Rufino-Palomares
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