To beat the lack of heat, some dairy farmers are using cow brassieres and hair dryers to keep their animals from udderly freezing.

"You've got to try to keep a cold cow comfortable, or you're going to lose a lot of milk production," said Barry Steevens, a University of Missouri dairy specialist.Friday's forecast called for more cold weather, with highs around zero.

Some Missouri farmers use nylon mesh udder supports on animals that calved recently and have udders swollen with milk, Steevens said. Others use hair dryers and towels to keep moisture off the animals.

Dairy farmers are better prepared than last year, when a surprise Christmas Eve deep freeze brought temperatures of 20 degrees below zero, chilled further by 24 mph winds, he said.