My last in a series of four livestock workshops at the University of Minnesota took place on the Rosemount campus, a 7,000-acre spread given to the university by the U.S. Department of Defense. Originally used for manufacturing smokeless gunpowder during World War II, the site now hosts experiments in both produce and livestock run by the U of M’s farm extension program. Its broad expanses of wild grasslands made the perfect setting to discuss those pasture-loving fixtures of livestock farms, cows.