a vehicle mounted feed hopper device has an enclosure upon a base , the enclosure having a v shape , at least one paddle mixer within the enclosure , a conveyor beneath the paddle mixer , an outlet proximate one end of the conveyor , a chain drive connected to the paddle mixer and the conveyor , and a hydraulic motor driving the chain drive through gearing . the device operates like a horizontal screw total mixed ration , but at a smaller scale . the invention accepts multiple grain products through its top and mixes them to blends suitable for livestock , except for roughage products which exceed the capacity of this device . the device dispenses its mixed feed through the outlet as it meters feed into feed bunks for the livestock .