Dec 20 Corn closed at $3.3075/bushel, down $0.05 from yesterday's close.  Sep 20 Wheat closed at $5.2775/bushel, up $0.0575 from yesterday's close.  Nov 20 Soybeans closed at $8.93/bushel, down $0.07 from yesterday's close.  Dec 20 Soymeal closed at $293.3/short ton, down $3.6 from yesterday's close.  Dec 20 Soyoil closed at 30.68 cents/lb up 0.15 cents from yesterday's close.  Oct 20 Live Cattle closed at $106.125/cwt down $0.25 from yesterday's close.  Aug 20 Feeder Cattle closed at $141.325/cwt down $0.275 from yesterday's close.  Aug 20 Lean Hogs closed at $51.475/cwt up $1.075 from yesterday's close.  Sep 20 WTI Crude Oil closed at $41.84/barrel up $0.92 from yesterday's close.  &nb...