The broiler chicken were divided into two groups, consist of 1–3 weeks and of 4–6 weeks. It was observed that in tissues of young chicken (1–3 weeks), the accumulation of Hg were 20–30% higher than those found in elder group (4–6 weeks). The concentrations of Hg measured in different chicken tissues, leg, breast, liver and heart muscles were observed on dried basis in the range of 1.27–3.24, 1.86–3.86, 2.54–5.54 and 2.13–3.27 lg/kg, respectively collected from all five farms (Table 2). The variations in accumulation of Hg concentrations among different tissues of broiler chickens collected from five farms were observed. The maximum accumulation of Hg was observed in liver (2.54–5.54 lg/kg dry wt), followed by breast muscles while lowest level was found in heart tissues (2.13–3.27 lg/kg) (Table 2).