Fermentation and extrusion offer some potential to increase the proportion of wheat bran in animal diets. Both, thefermentation as well as the extrusion technology applied to wheat bran, resulted in elevated CTTAD values of organicnutrients and energy in the whole diets. The modification strategies applied increase the CTTAD of GE, CF and ether extract.Nevertheless, fermentation seems to be more useful and additionally increases the CTTAD levels of DM and OM. Moreover,only the fermentation positively influenced the CTTAD values of ash, and hence of P and Ca. Although statistically significanteffects were noted, economic and ecologic aspects have to be taken into account when applying these strategies underpractical circumstances.