Ewes can eat about 770 pounds of hay per year, depending upon production stage. The amount of hay a ewe needs is determined by the average weight of the ewes in the flock and the length of time they need to be fed hay. The 770 pound figure is based on a production situation with ewes weighing 175 pounds and needing to be fed hay for six months.
Source: Purdue University
Farms with sheep totaled 68,280 during 2005, up one percent from both 2004 and 2003. Farms with 500 head of sheep or more account for 47.3 percent of the total U.S. sheep inventory.
Source: National Agricultural Statistics Service