Determinazione quantitativa di molecole antiossidanti in Sparus aurata allevata in vasca con acqua decantata

The aim of this research was the detection of Carnosine (Carn) and l-Histidine (l-Hist) in blood and muscle (head and tale) as marker of oxidative stress in Sparus aurata cultured in waste water during a period of 4 months. The concentration of these molecules in plasma was always lower in respect to muscle in each group and their concentration decreased when fish were cultured in waste water. In regards to l-Hist concentration, a significant difference was observed between the two groups in sample of cephalic muscle during all the period (p<0.01) and only in first and last month in tale muscle (p<0.05). In regards to Carn concentration, a significant difference was observed only in head muscle (p<0.05) and during first period. These data were in agreement with the variations of chemical parameters of blood and water that could increase oxidative stress in fish.