May 20 Corn closed at $3.3525/bushel, down $0.0875 from yesterday's close.  May 20 Wheat closed at $5.0825/bushel, up $0.09 from yesterday's close.  May 20 Soybeans closed at $8.255/bushel, up $0.0125 from yesterday's close.  May 20 Soymeal closed at $304/short ton, up $5.7 from yesterday's close.  May 20 Soyoil closed at 25.04 cents/lb down 0.2 cents from yesterday's close.  Jun 20 Live Cattle closed at $85.925/cwt down $3.825 from yesterday's close.  May 20 Feeder Cattle closed at $108.525/cwt down $3.325 from yesterday's close.  Jun 20 Lean Hogs closed at $67.3/cwt down $3.125 from yesterday's close.  Apr 20 WTI Crude Oil closed at $22.47/barrel down $4.48 from yesterday's close.  &nb...