Dec 20 Corn closed at $3.3/bushel, down $0.045 from yesterday's close.  Sep 20 Wheat closed at $5.235/bushel, down $0.0425 from yesterday's close.  Nov 20 Soybeans closed at $8.875/bushel, down $0.1225 from yesterday's close.  Dec 20 Soymeal closed at $297.5/short ton, down $4 from yesterday's close.  Dec 20 Soyoil closed at 29.92 cents/lb down 0.22 cents from yesterday's close.  Oct 20 Live Cattle closed at $105/cwt up $1.175 from yesterday's close.  Sep 20 Feeder Cattle closed at $141.3/cwt up $1.675 from yesterday's close.  Oct 20 Lean Hogs closed at $50.725/cwt down $0.025 from yesterday's close.  Sep 20 WTI Crude Oil closed at $40.94/barrel down $0.66 from yesterday's close.   ...