Table 7. Composition of mineral mixture feeds used for intensive culture of Atlantic salmon  (1 kg mineral mixture/100 kg of feed)1
Mineral  Element concentration4,5 Amount of supplement
(mg/kg of feed) (g/100 kg of feed)
MgSO4.7H20 (9.9% Mg)2    
NaCl (45.6% Na)3    
MnSO4.H20 (32.5% Mn) 30 9.23
FeSO4..7H20 (20.1% Fe) 60 29.85
ZnSo4.7H20 (22.7% Zn) 75 33.03
CuSO4..5H20 (25.5% Cu) 5 1.96
Na2SeO3  (45.6% Se) 1 0.22
CoCl2.6H20 (24.8% Co) 1.5 0.61
Ca(IO3) H2O ( 65.1% I) 2 0.33
Carrier    924.77
Total   1000
1Source: Lall (2009, unpublished formulation) 
2 Magnesium and calcium supplied from feed or seawater. 
3 Salt supplementation may be required in smolt feeds prior to seawater transfer.
4 Concentration of most trace elements may depend on the ingredient used in feed. 
5 Calcium phosphate used to supplement phosphorus. Concentration depends on the phosphorus supplied from the feed ingredients.