An experiment was carried out to study the effect of postpelleting dietary inclusion of whole wheat seed at the expense of ground wheat on the performance and gastrointestinal characteristics of broiler chickens. After the starter period three different diets were fed. Besides control diets that did not contain wheat seed, two other diets with different wheat seed contents were composed. Treatment A contained 5, 10, and 15%, treatment B contained 5, 20 and 30% wheat seed, respectively, in grower I, grower II and finisher phases, respectively. Body weight and feed consumption of chickens were measured at the end of each phase. At 40 days of age 12 chickens were slaughtered from each treatment. Carcass parameters, enzyme activities of digesta and histological structure of the small intestine were determined.