Corn futures were firm on Tuesday. Fund buying was triggered today as the market recovers from the recent drop to three-week lows. Good demand for export markets and ethanol usage helped generated buying interest. March ended 2 cents higher at $3.72 3/4 and December '07 was 3 1/2 cents higher at $3.54 3/4.

Soybean futures closed lower on Tuesday. The market setback from the strong gains on Monday as cash markets weakened due to increased country movement. Losses were limited by strength in the corn market. January was 3 3/4 cents lower at $6.63 and November was 2 cents lower at $7.18.

Wheat futures ended lower on Tuesday. Much of the weakness was attributed to technical selling following the recent dip below chart support at the mid November lows. Forecasts for a round of precipitation in the Plains early next week weighed on the market. CBOT Mar was down 8 cents to close at $4.82. KCBT Mar was 5 1/4 cents lower at $5.05 1/4 while MGE Mar fell 3 1/4 cents to close at $4.99.

Cattle futures closed lower on Tuesday. News that the Immigration and Naturalization Service had raided several Swift meat packing plants weighed heavily on futures. Losses were limited by light cash trade at $86. The early week cash market activity suggests that feedlots are anxious to keep marketings current. December was 60 points lower at $85.70 while February fell 65 points to close at $88.45. January feeder cattle were down 120 points at $98.42.

Lean hog futures closed mixed on Tuesday. Front end contracts were pressured by weakness in the cash market and concern that immigration checks at two Swift pork packing plants by federal officials will at least temporarily disrupt slaughter. Short-covering helped limit losses and pulled deferreds higher. February ended 13 cents lower at $63.38 while June was 10 cents higher at $73.65.