. 2021 Sep 16;11(9):2711. doi: 10.3390/ani11092711

Table 3.

Selenium requirements of certain fish.

Fish Species	Requirement, mg kg⁻¹	Selenium Source	Main Response Criteria	Reference
Atlantic salmon	0.27 ^a(0.65)	Na₂SeO₃ or SeMet ^b	Body and tissue Se	[169]
Rainbow trout	0.15–0.38	Na₂SeO₃	Plasma GPx	[146]
Coho salmon	0.39–0.43	Na₂SeO₃	WG, whole body, liver Se,	[168]
Channel catfish	0.25 0.28, 0.17 0.09, 0.12 0.11, 0.12	Na₂SeO₃ Na₂SeO₃ SeMet Se-yeast	Liver and plasma GPx WG ^c, GPx WG, GPx WG, GPx	[170] [171]
Gibel carp	1.18 0.73–1.19	SeMet SeMet	WG, liver GPx, tissue Se Liver Se, liver SOD, T-AOC	[172] [173]
Nile tilapia	0.57	SeMet	WG, liver GPx	[174]
Largemouth bass	1.60–1.85	Na₂SeO₃	Liver GPx	[175]
Gilthead sea bream	0.94	Na₂SeO₃	Growth, liver Se	[176]
Black sea bream	0.86	Se-polysaccharide ^d	Liver SOD and GPx	[177]
Malabar grouper	0.7 0.9 0.98	SeMet SeMet Na₂SeO₃	WG, Se retention WG, flesh Se	[178] [179]
Cobia	0.8	SeMet	Liver and serum GPx, whole body Se	[180]

^a Based on available Se; ^b Se-methionine used as Se supplement; ^c weight gain; ^d Se-polysachharide used as Se supplement.