Quantitative arginine requirement of Atlantic salmon (Salmo salar) reared in sea water

International audience A study utilizing casein-com gluten meal based diets supplemented with crystalline amino acids was conducted to determine the quantitative arginine requirement of Atlantic salmon smolts. Fish were gradually acclimated to sea water (32 ppt) and maintained for 8 weeks prior to c...

Full description

Bibliographic Details
Published in:Aquaculture
Main Authors: Lall, S.P., Kaushik, Sadasivam, Le Bail, Pierre-Yves, Keith, R., Anderson, J.S., Plisetskaya, E.
Other Authors: Department of Fisheries and Oceans, Station d'hydrobiologie, Institut National de la Recherche Agronomique (INRA), Station de physiologie des poissons, University of Washington Seattle
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 1994
Subjects:
fish
arginine
sea water
nutrition
[SDV]Life Sciences [q-bio]
Atlantic salmon
Salmo salar
Online Access:https://hal.inrae.fr/hal-02716145
https://hal.inrae.fr/hal-02716145/document
https://hal.inrae.fr/hal-02716145/file/Lall1994Aqua_1.pdf
https://doi.org/10.1016/0044-8486(94)90350-6
Description
Summary:International audience A study utilizing casein-com gluten meal based diets supplemented with crystalline amino acids was conducted to determine the quantitative arginine requirement of Atlantic salmon smolts. Fish were gradually acclimated to sea water (32 ppt) and maintained for 8 weeks prior to commencement of the study. Triplicate groups of Atlantic salmon were fed to satiation diets (CP: 40% DM) containing 1. 1-3.2 g Arg/ 100 g diet (2.7-8% of protein) for a period of 8 weeks. Growth, feed utilization and nitrogen retention data showed the requirement for arginine of Atlantic salmon to be 1.6% of dry matter (4.1% of dietary protein). An arginine requirement of 1.6% of dry matter (4.1% of dietary protein) was also obtained from broken-line regression of expired (CO2)-C-14 (following an intraperitoneal injection of L-[U-C-14]arginine versus dietary concentration. Except for the loss of appetite resulting in a low feed intake and depressed growth, no nutritional deficiency signs were observed in fish fed an arginine deficient diet for 98 days. The significance of several biochemical indices measured including liver arginase activity and plasma arginine, insulin and growth hormone levels of fish fed graded levels of arginine supplement is also discussed.

Similar Items