The research of the student with master degree Ahmed Abdulsalam Hazaa started with the experiment subject The response of broiler to the addition of dimethylglycine to normal and low energy diets on productive and physiological performance and antioxidant status under the supervision of Prof. Dr. Husam Hikmat Nafea The chicks were randomly distributed into cages and using the prevention program and vaccinations, as well as homogenizing the chicks and, with by the application of light, temperature and humidity conditions. The study aims to raise the productive efficiency of broiler by using the additives to increase the immune response and improve growth for broiler.