Dec 21 Corn closed at $5.5375/bushel, down $0.0275 from yesterday's close.  Sep 21 Wheat closed at $7.1125/bushel, down $0.0775 from yesterday's close.  Nov 21 Soybeans closed at $13.2975/bushel, down $0.07 from yesterday's close.  Dec 21 Soymeal closed at $359.5/short ton, up $1.8 from yesterday's close.  Dec 21 Soyoil closed at 59.94 cents/lb down 1.33 cents from yesterday's close.  Oct 21 Live Cattle closed at $127.475/cwt down $0.4 from yesterday's close.  Sep 21 Feeder Cattle closed at $163.2/cwt down $0.125 from yesterday's close.  Oct 21 Lean Hogs closed at $84.6/cwt down $3 from yesterday's close.  Sep 21 WTI Crude Oil closed at $66.84/barrel down $1.44 from yesterday's close.  &...