The Maintenance of appropriate GSH levels is therefore crucial to organisms that periodically undergo oxidative stress GSH can either be endogenously produced or obtained through food. In our previous study and in this study, we showed that biofloc particulates represent a potential source of dietary GSH. Furthermore, TAS,which measures non-enzymatic antioxidant defences, provides integrative information on the susceptibility of an organism to oxidative stress; as its value increases, the level of antioxidant defence against free radical reactions increases