It’s just 60 miles from El Dorado Dairy in Ontario, Calif., to the nation’s largest container port in Los Angeles. But the farm is having little luck getting its products onto a ship headed for the foreign markets that are crucial to its business.The farm is part of one of the nation’s largest cooperatives, California Dairies Inc., which manufactures milk powder for factories in Southeast Asia and Mexico that use it to make candy, baby formula and other foods. The company typically ships 50 million pounds of its milk powder and butter out of ports each month. But roughly 60 percent of the company’s bookings on outbound vessels have been canceled or deferred in recent months, resulting in about $45 million …
