A self-propelled mixer vehicle has an operator's station at a forward end, a mounted tank with a mixing mechanism inside the tank, and a discharge system to discharge mixed feed. A forward extending feed input arm has an arm actuator is operative to move a front end of the feed input arm up and down. A feed arm conveyor extends along the feed input arm and a feed chopper mounted on a front end thereof forward of the feed arm conveyor input moves feed ingredients into the conveyor. A grapple fork is pivotally mounted to the feed input arm. The grapple fork is configured to engage a bale stored in the bale stack and secure it to the feed input arm. The feed chopper can include a flail drum at the front thereof to remove material from bales. The mixed feed discharge is located beside or forward of the operator's station.
