The effect of biofloc and clear water at low and high salinity concentration on growth performance and antioxidant response of wild juveniles of Atlantic white shrimp Penaeus setiferus

The effect of biofloc (BFT) and clear water (CW) at low (ls) high-water salinity (hs) in wild juveniles Penaeus setiferus were evaluated. Four treatments implemented: hsBFT, lsBFT, hsCW, lsCW. After 45 days, final weight (FW), gain (WG), hepatosomatic index (HSI), survival rate (SR) Antioxidant activity muscle hepatopancreas measured: superoxide dismutase (SOD), catalase (CAT), glutathione-S transferase (GST), lipid peroxidation (LPO), protein oxidation (PO). FW SR was for lsCW (P < 0.05), whereas the WG HSI high hsBFT lsBFT 0.05). integrative biomarker response (IBR) showed differences between (M) (HP). Results an increase SOD CAT measured from HP treatment. For M, GST only BFT (regardless salinity). LPO determined M recorded values hs ls, respectively. PO substantial damage salinity), same determination important When analyses variance (ANOVA) performed, SOD, LPO, significant to In contrast, CAT, higher due rearing system interaction suggest that could diminish stress by stimulating antioxidant maintain redox balance through a enzyme decrease proteins lipids cells.