In this paper, the measurement of natural radioactivity in Chicken meat samples from different regions of Karbala governorate by using (Na(Tl)) detector. The results of measurements have shown that the specific activity and the determination of some other related parameters such as (Raeq, Hin, Iɣ, Iα DƔ, Eff dos and AGDE). In Fourteen four chicken meat samples by using NaI(Tl) detector. The results have shown that, the mean specific activity of (40K, 238U and 232Th) which were (14.272±14.2 Bq/kg, 2.255±0.45 Bq/kg and 1.3±0.26), respectively, were found to be less than the recommended values of specific activity given by (UNSCEAR, 2000).
 U.S. Nuclear Regulatory Commission, Fact Sheet on Biological Effects of Radiation, 2004.
 Colmenero S. L., Montero M.E., Villalba L., Renterıa V. M., Torres M. E., Garcıa L.M., Garcıa T. R., Mireles G. F., Herrera E.F. and Sanchez A. D., Uranium-238 and Thorium- 232 series concentrations in soil, Radon-222 indoor and drinking water concentrations and dose assessment in the governorate of Aldama, Chihuahua, Mexico. Journal of Environmental Radioactivity, 77, 205-219 (2004).
 UNSCEAR. Sources, effects and risks of ionizing radiations, United Nations, Scientific Committee on the Effects of Atomic Radiation, UNSCEAR 2000 report to the general assembly, with scientific annexes. United Nations, New York, (1988).
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