4. Conclusion
The accumulation of Hg in different tissues of broiler chicken may due to feed prepared from low grade grains and small sea fishes. Mercury concentrations in broiler chicken tissue correlated to Hg levels in their feeds. In addition, the age was also affected Hg accumulation in tissues of chicken. The observed correlation of Hg concentration among feed and tissues, provides perspective and a useful means for relating among the variety of measures of its exposure and bioavailability. The high level of Hg in manure may add Hg as major toxicant to environment, on their disposal.