Dec 21 Corn closed at $5.5175/bushel, down $0.075 from yesterday's close.  Sep 21 Wheat closed at $7.245/bushel, down $0.05 from yesterday's close.  Nov 21 Soybeans closed at $13.1975/bushel, down $0.3375 from yesterday's close.  Dec 21 Soymeal closed at $349.7/short ton, down $9.9 from yesterday's close.  Dec 21 Soyoil closed at 61.8 cents/lb down 0.79 cents from yesterday's close.  Oct 21 Live Cattle closed at $128.15/cwt up $0.875 from yesterday's close.  Sep 21 Feeder Cattle closed at $162.525/cwt up $0.55 from yesterday's close.  Oct 21 Lean Hogs closed at $91.375/cwt up $1.875 from yesterday's close.  Sep 21 WTI Crude Oil closed at $70.47/barrel down $0.79 from yesterday's close. ...