IntroductionWheat is a major energy source in broiler feeds in many parts of the world, including Europe, Canada, Australia and NewZealand. However, the physical and chemical composition of wheat is highly variable, making it one of the most variablecereal grains (Choct et al., 1999). Commercially, wheat can account for up to 70% of the metabolisable energy and 35% ofthe protein requirements of broilers. Therefore, variation in the quality of the wheat is expected to have a major impact onthe performance of chickens (Gutierrez del Alamo et al., 2008). The variation in broiler performance when feeding different∗