Grain and livestock closed mixed Tuesday.  Vince Boddicker, Farmers Trading Company, says corn and soybeans could not extend gains for a third day running into chart resistance and with strong crop rating and favorable weather.  Wheat saw light short covering and a boost from higher Russian wheat prices.  Live cattle ended mixed trying to consolidate with a stable stock market, but feeder cattle made new lows for the move again with more technical selling on ugly charts.  Lean hogs saw a short covering bounce with help from higher cutouts at noon.  

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