Abstract: There is disclosed a computerized automatic feeder system for feeding individualized prescribed rations to cattle confined in successive individual stalls aligned along a set path. The system comprises an apparatus capable of moving to each stall successively and having appropriate devices for preparing, at each stall, an individualized ratio for the cattle head in that stall and delivering it to the animal. A computer is mounted on the apparatus for controlling the operations of moving the apparatus to the stalls and preparing and delivering the rations.