Specifications include, but are not limited to: Iowa State University is requesting bids from feed mills for 87 tons of six (6) complete swine diets that will be requested to the location below. ISU is asking for pricing with DDG's and without DDG's. One ISU Purchase Order will be awarded for both farms. When individual feed orders are placed, the swine farm manager or his designee will indicate the farm name, diet number (see Ration Sheet), and bin number. (Each feed bin will have a unique number.); ISU may request to modify feed rations during the duration of the order to reflect new nutrient requirements of the pigs or changes in the nutrient value of the primary feed ingredients. Feed supplier will be allowed to adjust the price per ton to reflect price increase or decrease resulting from ration modifications upon approval of ISU.