Influence of Cu supplementation on toxic and essential trace element status in intensive reared beef cattle

► Effect of dietary Cu on toxic-essential element accumulation in cattle tissues. ► As, Hg and Pb decreased while Cd increased in Cu supplemented animals. ► Ratio Se:Cu could be a tool to decrease toxic metal residues. ► Mn-Ni decreased and Mo increased in brain. ► Se decreased in diaphragm of Cu supplemented animals.