A portable livestock feeder has a frame supported by a plurality of wheels with a trailer hitch at one end. First and second feed troughs are positioned on each side of a longitudinal center of the frame with racks positioned above the troughs. The feed troughs are supported at their front ends by a first pair of pin members and at their rear ends by a second pair of pin members. The feed troughs are pivotable by a hydraulic mechanism about the pin members between a normal feeding position and a bottom dumping position. One of the pin members is movable between first and second stops that limit lateral movement of the feed troughs toward and away from the longitudinal center of the feeder. An adjustable cam member is arranged to engage another one of the pin members for causing the troughs to move between narrow and wide width settings.
