Horse rescue farms in Michigan are running out of room.

The tough economy and drought has driven up the price of feed, leading several owners to abandon their horses or have the animals slaughtered, WILX-TV reported on Monday.

Horses Haven has 58 hoofed animals on its 23 acres in Howell, northwest of Detroit, and can't afford to take anymore.

The farm is run by volunteers and donations.

"We do have a waiting list that's about 100 horses long and a couple years to get into Horses Haven," said Jill Fredrickson, the group's president.

About 20 other rescue farms in Michigan also are full.

Feed prices are going up a third to a half, according to Karen Waite, an equine extension specialist at Michigan State University.

The number of starving horses could continue going up.

"There's no easy solution," Waite said. "For folks that haven't taken the time to figure out what they are going to do, we could see increased issues as the winter progresses."

To adopt a horse or to make a donation visit www.horseshaven.org.