May 21 Corn closed at $5.855/bushel, down $0.045 from yesterday's close.  May 21 Wheat closed at $6.525/bushel, down $0.0125 from yesterday's close.  May 21 Soybeans closed at $14.3325/bushel, up $0.15 from yesterday's close.  Jul 21 Soymeal closed at $406.4/short ton, down $0.1 from yesterday's close.  Jul 21 Soyoil closed at 54.24 cents/lb up 1.37 cents from yesterday's close.  Jun 21 Live Cattle closed at $119.175/cwt down $0.475 from yesterday's close.  May 21 Feeder Cattle closed at $143.725/cwt down $0.7 from yesterday's close.  Jun 21 Lean Hogs closed at $101.7/cwt down $3 from yesterday's close.  May 21 WTI Crude Oil closed at $63.13/barrel down $0.33 from yesterday's close.  &nb...