May 21 Corn closed at $5.4675/bushel, down $0.0575 from yesterday's close.  May 21 Wheat closed at $6.1675/bushel, up $0.035 from yesterday's close.  May 21 Soybeans closed at $13.93/bushel, down $0.075 from yesterday's close.  May 21 Soymeal closed at $398.1/short ton, down $5.9 from yesterday's close.  May 21 Soyoil closed at 52.96 cents/lb up 0.48 cents from yesterday's close.  Jun 21 Live Cattle closed at $122.65/cwt up $0.875 from yesterday's close.  May 21 Feeder Cattle closed at $152.2/cwt up $2.325 from yesterday's close.  Jun 21 Lean Hogs closed at $105.225/cwt down $0.375 from yesterday's close.  May 21 WTI Crude Oil closed at $61.61/barrel up $0.64 from yesterday's close.  &nb...