Comparison of organic and inorganic sources of selenium for growth, glutathione peroxidase activity and immune responses in channel catfish

Year-0 channel catfish fingerlings were fed a casein basal diet supplemented with 0, 0.02, 0.06, 0.20, or 0.40 mg of selenium/kg from sodium selenite (Na;Broken-line regression analysis showed that the minimum dietary selenium requirements for weight gain for Na;These results indicate that selenium from organic sources has about two times the potency of that from Na...