Selenium (Se) plays an important role in the regulation of various metabolic processes in the body, being an integral part of selenoproteins. Organic Se in the form of selenomethionine is a predominant form of this element in feed ingredients. Therefore,the digestive system of animals has been adapted to this form of Se. However, selenite is a common form of Se used in diets. There is little information available on the effects of Se supplementation on lipid oxidation in broiler chicks. Thus, the objectives of the experiment were to compare the effect of dietary sodium selenite and selenomethionine on selenium and alpha-tocopherol (vitamin E) concentration in breast meat and oxidative stability of meat in broilers. From this study, it can be concludedthat dietary selenomethionine supplementation was more effective than inorganic Se. Further, selenomethionine is capable of simultaneously increasing the Se and vitamin E contents of broiler meat and can prevent the oxidation of product