May 20 Corn closed at $3.1975/bushel, up $0.005 from yesterday's close.  May 20 Wheat closed at $5.2975/bushel, down $0.105 from yesterday's close.  May 20 Soybeans closed at $8.3675/bushel, down $0.0525 from yesterday's close.  May 20 Soymeal closed at $291.8/short ton, down $0.4 from yesterday's close.  May 20 Soyoil closed at 26.3 cents/lb down 0.25 cents from yesterday's close.  Jun 20 Live Cattle closed at $86.475/cwt up $1.65 from yesterday's close.  May 20 Feeder Cattle closed at $118.475/cwt up $2.9 from yesterday's close.  Jun 20 Lean Hogs closed at $43.175/cwt down $1.45 from yesterday's close.  May 20 WTI Crude Oil closed at $19.71/barrel down $0.16 from yesterday's close.  &n...