In its first assessment of world supply-and-demand prospects for 2018-19 crops and U.S. grain prices, USDA said today its U.S. feed-grain outlook is for lower production, domestic use, exports and ending stocks. With beginning stocks down from a year ago, total corn supplies at 16.3 billion bushels, if realized, would be down 675 million from the prior year, USDA said in the May World Agricultural Supply and Demand Estimates report.With total U.S. corn supply falling faster than use, 2018-19 U.S. ending stocks are down 500 million bushels from last year to 1.7 billion. The season-average farm price for corn is projected at $3.30 to $4.30 per bushel, up 40 cents at the midpoint from 2017-18.