Designed to accommodate 45 calves, the Mobile Replacement-Milk Feeder consists of a 132-gallon polyethylene tank with hinged lid, a five-sectioned manifold with nipples, two fill taps, and two drain taps, all of which are mounted on a galvanized-steel trailer with hard rubber tires. The operator mixes the milk replacer in the tank, tows the unit to the pen or pasture, and releases the required amount into the sectioned manifold. A manual leveler allows milk to flow evenly to all teats. The feeder + draw bar is about 12 feet long, 6 feet wide and weighs 400 pounds.