“…For example, a study demonstrated that nano-Se supplementation at 1 mg/Kg diet reduced cumulative mortality in Pangasianodon hypophthalmus after the Aeromonas veronii challenge [59] . In Sparus aurata , nano-Se at 0.5 and 0.75 mg/Kg diet increased the survivability of the fish exposed to Vibrio parahaemolyticus [60] . Similarly, a study by Eissa et al.…”