Aerobic exercise increases the utilization efficiency of energy and protein for growth in Atlantic salmon post-smolts

摘要: Abstract Aerobic exercise training may improve growth and help to protect fish from viral bacterial diseases. This study was conducted determine the effect of increased sustained aerobic on maintenance requirements efficiency utilization digestible protein (DP), amino acids metabolizable energy (ME) for above Atlantic salmon post-smolts. The were held in tanks with currents 7 (low speed) or 23 (high cm s− 1 (initial speeds 0.32 1.06 body lengths s− 1) 62 days fed a fishmeal-based diet excess at levels approximating 30, 40, 60 80% intake full-fed groups. In groups, there no significant treatment feed intake, final weights, rates, whole-body composition. An extrapolation zero weight gain showed that speed resulted an increase requirement 5.3 13.4 g dry matter fish− 1. ME, which includes used activity, 46.5 kJ kg− 0.8 d− 1 high groups 24.7 kJ kg− 0.8 d− 1 low Our calculations true maintenance, activity has been removed, 15.3 kJ kg− 0.8 d− 1 speed. Above ME 0.89 0.70 (P