The effect of feeding whole wheat grain (W) to poultry has been evaluated by nutritionists mainly on broilers using two
models of nutrition: feeding whole grain either through mixed feeding where W was added as a partial substitute for ground
wheat in a complete diet or free choice feeding where W and protein concentrate were offered in separate feeders (Amerah
and Ravindran, 2008). In free choice feeding, the nutritive value of a daily ingested diet containing intact grain, mainly due
to the protein content, is lower than upon intake of the complete diet (Erener et al., 2003), which may result in diminished
weight gain and worsen feed efficiency ratio (Amerah and Ravindran, 2008). However, the scope of research into feeding
whole grain wheat to turkeys remains scarce.