Abstract: Livestock feed bunkers are disclosed which are usable universally with all forms of feed, whether ground, loose or chopped forage, mixed grain and forage, silage, haylage, or hay bales, including large round bales. An open bottom hopper above a floor manger is provided enclosed by a peripheral framework through which heads and necks of livestock can pass, with some framework being gate-mounted to swing about a vertical axis for leaving a side of the feeder unobstructed to facilitate loading of large round bales in side-by-side disposition into the bunker either with axes of the bales transverse and with circumferential faces abutting, or with axes aligned, without the bales being raised above floor level, and also, if desired, with either the unhinged end of the gate-mounted framework being top-hinged to swing inwardly when pushed by the shoulders of livestock toward the center of the manger when animals are reaching for feed in the middle of the bunker.