Effects of dietary organic and inorganic selenium on the growth, selenium concentration and meat quality of juvenile grouper Epinephelus malabaricus

Abstract

Abstract The aim of this study was to investigate the effects of dietary organic and inorganic selenium (Se) on the growth, Se concentration and meat quality of juvenile grouper, Epinephelus malabaricus. Organic Se (selenomethionine, SeMet) and inorganic Se (sodium selenite, Na2SeO3) were each added to the basal diet of juvenile grouper at 0.3, 0.7, 1.0 and 1.5 mg Se/kg-diet. The basal diet, without Se supplementation, was used as a control. There was a total of 9 experimental diets, and each was fed in triplicate to groups of fish (initial wt: 24.45 ± 0.73 g) in a seawater recirculating system for 8 weeks. Weight gain was significantly (P