Dec 20 Corn closed at $3.2025/bushel, down $0.0825 from yesterday's close.  Sep 20 Wheat closed at $5.0825/bushel, down $0.1275 from yesterday's close.  Nov 20 Soybeans closed at $8.8175/bushel, down $0.145 from yesterday's close.  Dec 20 Soymeal closed at $291.4/short ton, down $4.3 from yesterday's close.  Dec 20 Soyoil closed at 31.05 cents/lb down 0.27 cents from yesterday's close.  Oct 20 Live Cattle closed at $107.475/cwt down $0.8 from yesterday's close.  Sep 20 Feeder Cattle closed at $146.625/cwt down $0.45 from yesterday's close.  Oct 20 Lean Hogs closed at $49.025/cwt up $0.625 from yesterday's close.  Sep 20 WTI Crude Oil closed at $41.58/barrel up $0.57 from yesterday's close.&nbs...