The Hydra-Feeder Hydraulic Cattle Feeder is a truck-bed-mounted feeding device for dispensing cake or grain supplements into a bunk, onto an apron, or out on the range. Available in two sizes (1,200-pound and 1,800-pound capacity), the unit features a hydraulic-drive-motor-powered 6-inch, variable-speed auger that has a 1- to 11-pounds-per-second discharge rate. Designed primarily to be used in conjunction with the truck-bed-mounted Hydra-Bed, it can also be used on a three-point tractor mount--powered by the tractor's hydraulic system.