Dec 20 Corn closed at $3.6975/bushel, down $0.0875 from yesterday's close.  Dec 20 Wheat closed at $5.5475/bushel, down $0.2025 from yesterday's close.  Nov 20 Soybeans closed at $10.225/bushel, down $0.21 from yesterday's close.  Dec 20 Soymeal closed at $338.1/short ton, down $4 from yesterday's close.  Dec 20 Soyoil closed at 34.2 cents/lb down 0.94 cents from yesterday's close.  Dec 20 Live Cattle closed at $110.6/cwt down $1.25 from yesterday's close.  Oct 20 Feeder Cattle closed at $142.25/cwt down $0.175 from yesterday's close.  Dec 20 Lean Hogs closed at $61.55/cwt down $1.975 from yesterday's close.  Oct 20 WTI Crude Oil closed at $39.68/barrel down $1.43 from yesterday's close. ...