Cattle Waste Feeds New Profits for Dairy Farmer

Cattle Waste Feeds New Profits for Dairy Farmer

Carla Gottgens/Bloomberg

Friesian cows wait to be milked at Pearson's Farm on April 18, 2013. The U.S. Department of Agriculture today will renew a pledge made in 2009 to promote environmentally friendly -- and money-making -- dairy farm practices.