Muscle protein synthesis in vitro of saithe (Pollachius virens) correlated to growth and daily energy intake

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Abstract

  • 1.

    1. Immature saithe (Pollachius virens) with a mean weight of 1000 g were either starved or fed increasing amounts of dietary energy during 9 weeks. The protein-energy ratio of the diet was kept constant. Liver weight as percentage of body weight indicated a high food utilization.

  • 2.

    2. Ribosomes were isolated from cryopreserved (−80°C) epaxial muscle. Their capacity to synthesize proteins, the polyribosome content and growth of the fish increased with increasing ration intake.

  • 3.

    3. The food ration dependent changes in protein synthesis and growth were accompanied by quantitative rather than qualitative alterations in muscle protein composition.

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