The half-sized cows barely reached Kenny's waist. The ranch's border collie stared eye-to-eye with wandering calves.

The Petersens once raised normal-sized bovines on this stretch of Nebraska's rolling eastern grasslands, but with skyrocketing feed costs, the couple decided to downsize.

They bought minicows -- compact cattle with stocky bodies, smaller frames and relatively tiny appetites.

Their miniature Herefords consume about half that of a full-sized cow yet produce 50% to 75% of the rib-eyes and fillets, according to researchers and budget-conscious farmers.

"We get more sirloin and less soup bone," Ali said. "People used to look at them and laugh. Now, they want to own them."

Minicows are not genetically engineered to be tiny, and they're not dwarfs. They are drawn from original breeds brought to the U.S. from Europe in the 1800s that were smaller than today's bovine giants, said Ron Lemenager, professor of animal science at Purdue University in West Lafayette, Ind.