This project studied the effects of chicken feed supplementation with different doses of alpha-tocopherol acetate during 5 different periods (from 0 days to the whole production period). The effects were quantified through the measure of alpha-tocopherol deposit in meat, its fatty acid composition, and the corresponding oxidation levels. Differences in these parameters were also assessed when these meats were cooked. Results obtained allowed to optimize dose and period of alpha-tocopherol supplementation, in order to reach the desired enrichment values, and a suitable oxidative stability in chicken meat.