A study released Wednesday by the U.S. Dairy Export Council projects new trade agreements between Japan and other countries will put U.S. dairy exports at a competitive disadvantage, resulting in lost sales of $5.4 billion over 21 years. The Japanese dairy market, the fourth-largest export destination for U.S. dairy exports, is expected to continue to grow in years to come, but new trade agreements between Japan and Australia, New Zealand and the European Union will give the advantage to competitors, according to the study conducted by Tokyo-based Meros Consulting.