AUSTIN -- For the week ending Aug. 20, feeder cattle price trends at Texas auctions were uneven, from $5 lower to $5 higher per hundredweight. High drought-related volumes at many auctions and the lack of grazing continue to pressure markets, though higher fed cattle, the likelihood for lower supplies this fall and higher beef prices remain supportive. Fed cattle prices were $2.50 lower in spite of higher wholesale beef prices. Cotton prices were higher for the week on prospects for a smaller drought-reduced U.S. crop and news that China will likely increase purchases soon. Corn prices were higher on concerns that the recent production forecast may not reflect the full extent of damage done during the July heat wave in the Midwest. Wheat prices were higher following reports of lower than expected spring wheat yields. . . .