Definitions for "Animal unit month"
Keywords:  forage, aum, cow, grazing, calf
The quantity of forage required by one mature cow and her calf (or the equivalent, in sheep or horses, for instance) for one month.
(AUM) - (3) the amount of forage needed to sustain one cow, five sheep, or five goats for a month.
(AUM) Amount of feed or forage required to maintain one animal unit (e.g., a 1,000-lb cow and calf) for one month.