Nutrition of Salmonoid Fishes

Abstract
The data presented suggest that the optimum protein level for chinook salmon is dependent upon water temperature. The requirement at 47°F was found to be 40% of the diet and the requirement at 58°F, 55% of the diet. The feeding tests also show that the protein requirements of fish are two to 4 times higher than those of birds and mammals, when expressed as a percentage of the dry diet.