Is there a place in DSM or Johnston where I can buy all this in one place.. WHITETAIL DEER HOMEMADE MINERAL MIX RECIPE Ingredients: Makes 250 lbs 1 part Di-calcium phosphate, this is a dairy feed additive bought at feed stores. Comes in 50lb Bags, you need one bag. 2 parts Trace mineral salt, the red and loose kind without the medications. Look for the highest amounts of calcium and phosphorus on the label. Comes in 50lb Bags, you need two bags. 2 parts Stock salt, ice cream salt. Comes in 50lb Bags, you need two bags.