May 20 Corn closed at $3.2225/bushel, up $0.025 from yesterday's close.  Jul 20 Wheat closed at $5.3375/bushel, up $0.0325 from yesterday's close.  May 20 Soybeans closed at $8.325/bushel, down $0.0425 from yesterday's close.  May 20 Soymeal closed at $288.2/short ton, down $3.6 from yesterday's close.  Jul 20 Soyoil closed at 26.67 cents/lb down 0.01 cents from yesterday's close.  Jun 20 Live Cattle closed at $86.3/cwt down $0.175 from yesterday's close.  Aug 20 Feeder Cattle closed at $128.4/cwt down $0.225 from yesterday's close.  Jun 20 Lean Hogs closed at $43.725/cwt up $0.55 from yesterday's close.  May 20 WTI Crude Oil closed at $18.14/barrel down $1.73 from yesterday's close.  &n...