Grains end mixed, livestock and equities lower.  Wheat sees technical buying and puts in weather premium on hot and windy conditions in HRW areas, that lends some strength to corn.  Soybeans set back with meal.  All of the grains are gearing up for USDA and Conab production estimates Thursday.  Cattle set back with a lower stock market and more Bovine Influenza A cases.  Hogs score a bearish key reversal.  So is the top in?  Mark Schultz, Northstar Commodity, has analysis.  

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