Temporal trends of PCBs in feed and dietary influence in farmed rainbow trout (Oncorhynchus mykiss)

Moreover, feed Σ18PCBs showed a statistical significant difference (p < 0.01) among the analysed brands and was positively correlated (p < 0.01 and r = 0.451) with the rainbow trout muscle Σ18PCBs. These results showed that the presence of PCBs in trout muscle is directly linked to the chemical quality of aquaculture feed. The most commonly detected PCBs congeners were congeners PCB 153 and PCB 138 in all the three compared brands.