May 20 Corn closed at $3.6825/bushel, up $0.0025 from yesterday's close.  May 20 Wheat closed at $5.25/bushel, down $0.025 from yesterday's close.  May 20 Soybeans closed at $8.9275/bushel, down $0.0225 from yesterday's close.  May 20 Soymeal closed at $305.6/short ton, up $2 from yesterday's close.  May 20 Soyoil closed at 28.68 cents/lb down 0.51 cents from yesterday's close.  Apr 20 Live Cattle closed at $107.575/cwt down $2.9 from yesterday's close.  Apr 20 Feeder Cattle closed at $132.7/cwt down $1.375 from yesterday's close.  Apr 20 Lean Hogs closed at $62.275/cwt down $0.275 from yesterday's close.  Apr 20 WTI Crude Oil closed at $45.25/barrel down $1.84 from yesterday's close.  &...