Last month's feeder calf placements data points to a changing supply situation for the beef market next quarter. Similarly, feedlots' fed cattle marketings show the industry is remaining current on inventories. Analysis of the fed cattle supply situation offers insight into trading strategies that could be profitable going forward.The hot issues in the report that accompanied the House Appropriations Committee-approved FY 2018 ag appropriations bill were related to food safety from imports, specifically poultry from China and red meat from Brazil. Cattle on Feed USDA will release its monthly Cattle on Feed report tomorrow. Industry pre-report estimates peg the total number of cattle on feed as of 1 July at 10.646 million head or 102.8 per...