Wheat and Barley versus Enzymes

I have been recently contacted by a poultry integrator to help them pick the ‘right’ NSP (non-starch polysaccharide) enzyme for their broiler operation. In the process of our collaboration, they became very interested in knowing why the inclusion levels for barley and wheat mattered in the final choice (as it happened, these varied quite considerably according to market prices). I thought this would be an interesting ‘story’ to share!   A diet based solely on maize conta