Influence of feeding on protein metabolism in atlantic salmon (Salmo salar)

• Published in: Aquaculture
• Main Authors: Fauconneau, Benoit, Breque, Jeanine, Bielle, C.
• Other Authors: Laboratoire de nutrition des poissons, Institut National de la Recherche Agronomique (INRA)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 1989
• Subjects: fish; growth; [SDV]Life Sciences [q-bio]; Atlantic salmon; Salmo salar
• Online Access: https://hal.inrae.fr/hal-02728070; https://hal.inrae.fr/hal-02728070/document; https://hal.inrae.fr/hal-02728070/file/Fauc1989Aqua_1.pdf; https://doi.org/10.1016/0044-8486(89)90442-0

International audience Two experiments were conducted to study the post-prandial changes in protein synthesis rate of different tissues in juvenile Atlantic salmon after an i.v. injection of a large dose (1.5 pmole/g) of L- [ 2,3-3H] -1eucine. In the first experiment, the changes in protein synthesis rate of the muscle and scales were followed over a period of 18 h after a meal, in salmon (mean body weight 43.4 g) starved for 1 week. The rate of protein synthesis in muscle increased until 18 h after feeding. No significant changes were observed in the protein synthesis rate of the scales. In the second experiment, the salmon (mean body weight 36.8 g) were regularly fed on a commercial diet. Immediate analysis of protein metabolism (2 h after the morning meal) as compared with analysis after an overnight fast showed no significant effect of feeding on the protein synthesis rate in liver, gill, digestive tract and muscle.