Macro and trace elements in edible tissue of farmed rainbow trout (Oncorhynchus mykiss) | Makro i toksični elementi u jestivom tkivu gajene pastrmke (Oncorhynchus mykiss)
2011
Đinović-Stojanović, J., Institut za higijenu i tehnologiju mesa, Beograd (Serbia) | Vranić, D., Institut za higijenu i tehnologiju mesa, Beograd (Serbia) | Trbović, D., Institut za higijenu i tehnologiju mesa, Beograd (Serbia) | Janković, S., Institut za higijenu i tehnologiju mesa, Beograd (Serbia) | Petrović, Z., Institut za higijenu i tehnologiju mesa, Beograd (Serbia) | Spirić, A., Institut za higijenu i tehnologiju mesa, Beograd (Serbia)
The present work aimed to examine the pollution with trace elements (Hg, Cd, Pb, Cu, Zn, Se, As, Fe and Mn) of rainbow trout (Oncorhynchus mykiss) reared in intensive fish farm – Riboprodukt, Pozega (Serbia). Fish of different categories (fingerlings, marketable size fish and fish from broodstock; n = 6) were manually feed extruded sinking pelleted diets according to good aquaculture practice. The obtained data indicate that concentrations of As, Cd, Pb and Mn in all analyzed fish samples (fingerlings, marketable size fish from broodstock) were bellow the limit of detection (LD mg/kg, as follows As is less than 0.05, Cd is less than 0.005, Pb is less than 0.05, Mn is less than 0.2). Comparing all fish categories, Cu was detected bellow the limit of detection (0.2 mg/kg) only in fish from broodstock. Quantities of Hg, Cu, Fe, Zn and Se were detected in the range of 0.010-0.056; less than 0.2-0.3; 3.71-5.19; 4.26-4.89 and 0.03-0.04 mg/kg respectively. By statistical evaluation of the obtained results it was established a significant difference (p is less than 0.05) in the concentration of mercury between all three fish categories. Significant difference (p is less than 0.05) was established for iron between marketable size fish and fish from broodstock too. The obtained results indicated that quantities of macro and trace elements in edible tissue of farmed rainbow trout were satisfactory, what enable consumption of safe fish.
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