Supplementation with Sodium Selenite and Selenium-Enriched Microalgae Biomass Show Varying Effects on Blood Enzymes Activities, Antioxidant Response, and Accumulation in Common Barbel (Barbus barbus)

Table 2

Sodium selenite, Se-free and/or Se-enriched microalgae supplement, and calculated concentration of selenium (mg kg⁻¹ dw) in experimental diets.

Se source/treatment	Control	Se 0.3	Algadiet 0.3	Algadiet 1.0
Sodium selenite	−	+	−	−
Se-free^a/Se-enriched^b microalgae biomass ratio (%)	100/0	100/0	30/70	0/100
Calculated additive concentration	0.0	0.3	0.3	1.0

aSe concentration below detection limit of 0.05 mg kg⁻¹ dw.
^b Se concentration of 119.2 mg kg⁻¹ dw.