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Lloyd and Daphne Holterman

Back in 1980, Lloyd Holterman was milking 70 cows with his parents on their family dairy farm. Now he has more than 800 in his herd at Rosy-Lane Holsteins, which he operates with his wife, Daphne, and partner Tim Strobel FISC’99, on 1,200 acres near Watertown, Wis. The Holtermans have grown the business by thinking vertically. They raise their own heifers and operate a trucking subsidiary to ship their milk. And it’s a lot of milk, too-more than 8,000 gallons a day. The couple also has been active in international dairy development, hosting a stream of international visitors on their farm. Daphne organized an international forum for women in dairying as part of last year’s World Dairy Expo.