There were no interactions between diet and carbohydrase for ileal digestibility and total tract retention in 25-dayold broilers. Differences in AMEn and ileal digestibility of DM were found between PHY and basal diets (P < 0.01) with values, respectively, of 3,483 kcal/kg and 65.2% for PHY and 3,412 kcal/kg and 63.4% for basal.