Grains end higher Thursday with technical buying and short covering by the funds.  May corn climbed about the 20 day moving average which also triggered some buying.  The markets also got help from better China economic news and lower Brazil crop estimates.  Chicago wheat hit new contract lows with confirmation of the China cancellation of 4.6 million bushels of soft red winter wheat and then bounced with the other two classes.  All the grains saw some positioning ahead of tomorrow's WASDE.   So are the lows in?  DuWayne Bosse, Bolt Marketing, has the answers and also covers the mostly higher action in cattle and hogs.   

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