• By participating in the structure of the Glutathione peroxidase enzyme, selenium protects the cell membrane structure and tissues against oxidative damage. • It has antioxidant effects. • It supports growth and development. Increases vitality. • It reduces reproductive problems. • It prevents the formation of anemia, exudative diathesis, and muscular dystrophy. • By preventing the oxidation of oils, it extends the fillet quality and shelf life of the products.