Dec 20 Corn closed at $3.5425/bushel, up $0.0175 from yesterday's close.  Sep 20 Wheat closed at $5.165/bushel, up $0.2125 from yesterday's close.  Nov 20 Soybeans closed at $8.9725/bushel, down $0.0525 from yesterday's close.  Dec 20 Soymeal closed at $301.8/short ton, down $1.3 from yesterday's close.  Dec 20 Soyoil closed at 29.21 cents/lb down 0.35 cents from yesterday's close.  Aug 20 Live Cattle closed at $99.15/cwt down $0.85 from yesterday's close.  Aug 20 Feeder Cattle closed at $134.05/cwt down $0.875 from yesterday's close.  Aug 20 Lean Hogs closed at $47.95/cwt down $0.925 from yesterday's close.  Aug 20 WTI Crude Oil closed at $40.85/barrel up $0.23 from yesterday's close. ...