Table 2. Summary of dietary nutrient requirement and utilization of Atlantic salmon, Salmo salar
(requirement expressed for dry feed except otherwise where mentioned)
Nutrients   Life stage/size class  
    Fry Fingerling Juvenile Grower Marine grower Broodstock
Crude protein, % min   50 4550 45 4245 4045 45
Amino acids, % min of dietary protein              
  Arginine 2 2 2 1.6 1.6 1.6
  Histidine 0.7 0.7 0.7 0.8 0.7 0.7
  Isoleucine 0.8 0.8 0.8 0.8 0.8 0.8
  Leucine 1.4 1.4 1.4 1.4 1.4 1.4
  Lysine 2 1.8 1.8 1.8 1.8 1.8
  Methionine 1.1 1 1 1 1 1
  Phenylalanine 1.2 1.2 1.2 1.2 1.2 1.2
  Threonine 0.8 0.8 0.8 0.8 0.8 0.8
  Tryptophan 0.2 0.2 0.2 0.2 0.2 0.2
  Valine 1.3 1.3 1.3 1.3 1.3 1.3
Crude lipid, % min   1618 20 20 2024 2430 24
Essential fatty acids, % min              
  18:2n-6            
  20:4n-6            
  18:3n-3            
  20:5n-3 0.5 0.5 0.5 0.5 0.5 0.5
  22:6n-3 0.51.0 0.51.0 0.51.0 0.51.0 0.51.0 0.51.0
Carbohydrate, % max   10 10 12 12 12 12
Crude fibre, % max   2 3 3 3 3 3
Digestible energy, min kJ/g   19 19 19 20 20 19
Protein to energy ratio, mg/kJ   2324 2223 2122 2021 1718 18
Minerals              
Macroelements (%)
  Phosphorus, min 0.7 0.7 0.6 0.6 0.6 0.6
  Magnesium, min 0.05 0.05 0.05 0.05   0.05
  Sodium, min 0.06 0.06 0.06 0.06   0.06
  Potassium 0.7 0.7 0.7 0.7 0.7 0.7
Microelements, min mg/kg dry diet 
  Iron 60 60 60 60 60 60
  Copper 3 3 3 3 3 3
  Manganese 15 15 15 15 15 20
  Zinc 50 50 50 50 50 50
  Cobalt            
  Selenium 0.3 0.3 0.3 0.3 0.3 0.3
  Iodine 1 1 1 2   2
Vitamins, min IU/kg 
  Vitamin A 2 500 2 500 2 500 2 500 2 500 2 500
  Vitamin D 2 400 24 00 2 400 2 000 2 000 2 000
Vitamins, min mg/kg
  Vitamin E 50100 50100 50100 50100 100 100
  Vitamin K 1 1 1 1 1 1
  Thiamine 10 10 10 10 10 10
  Riboflavin 5 5 5 5 5 5
  Pyridoxine 8 8 8 6 6 8
  Pantothenic acid 20 20 20 20 20 20
  Niacin 10 10 10 10 10 10
  Folic acid 2 2 2 2 2 3
  Vitamin B12 0.02 0.02 0.02 0.02 0.02 0.02
  Choline 800 800 1000 1000 1000 1000
  Inositol 300 300 300 300 300 300
  Biotin 0.15 0.15 0.15 0.15 0.15 0.15
  Ascorbic acid 50 50 50 50 50 50
Requirements measured in juvenile fish. Values for other life-history stages are estimates.
Source: NRC (1993); Kaushik, Gouillou-Coustans & Cho (1998); Lall & Anderson (2005); Lall (2008).