Transactions of the American Fisheries Society · 1975 · 95 citations · 4 references
AgricultureNutritionNutritional SciencesAnimal NutritionAquacultureNutrient ManagementAquaculture NutritionFish NutritionNutrient RequirementsNutrient UtilizationPhosphorus ManagementPhosphorus NutritionAsh ContentGrowth Rate TraitsNutritional Effects On GrowthPhosphorus RequirementPhosphorus SupplementationSoybean Meal InclusionSoybean Meal SupplementationTotal Phosphorus
Triplicate lots of young Atlantic salnon (Salmo salar) were fed a diet containing graded levels of supplemental inorganic phosphorus. The basal diet, containing mainly dehulled soybean meal and other plant materials, provided 40% crude protein, 0.7% phosphorus, 1.5% calcium, and 4,000 IU of supplemental cholecalciferol per kg of diet. Supplements of inorganic phosphorus significantly improved growth, feed utilization, and bone ash content. Inorganic phosphorus supplementation up to 0.6% of the diet increased growth rate and bone ash content; additions beyond this level had little further effect. This study suggests that when young salmon are fed diets containing 0.7% phosphorus from plant sources, the minimum requirement for supplemental inorganic phosphorus is approximately 0.6% of the diet.
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