Jul 21 Corn closed at $6.62/bushel, down $0.13 from yesterday's close.  Jul 21 Wheat closed at $6.7625/bushel, down $0.1125 from yesterday's close.  Jul 21 Soybeans closed at $15.4925/bushel, down $0.1325 from yesterday's close.  Jul 21 Soymeal closed at $391.6/short ton, down $2.4 from yesterday's close.  Jul 21 Soyoil closed at 68.85 cents/lb down 1.53 cents from yesterday's close.  Aug 21 Live Cattle closed at $118.525/cwt down $0.725 from yesterday's close.  Aug 21 Feeder Cattle closed at $152.95/cwt up $0.625 from yesterday's close.  Jul 21 Lean Hogs closed at $119/cwt up $0.525 from yesterday's close.  Jul 21 WTI Crude Oil closed at $68.88/barrel up $0.05 from yesterday's close.  &...