9Tacon A G J, Cowey C B. Protein and amino acid requirements[G]//Calow P, Tytler P. Fish Energetics:New Perspectives. London : Croom Helm, 1985: 155- 183.
10Grisdale-Hell B, Helland S J. Replacement of protein by fat and carbohydrate in diets for Atlantic salmon (Salmo salar)at the end of freshwater stage [J]. Aquaculture, 1997 (152) : 167-180.