The Purina Mills of today offers hundreds of products for horses, cattle, goats, swine, poultry, rabbits, game animals, exotics and many more. In fact, if it walks, crawls, swims or flies then there is a good chance Purina Mills has a product designed to meet the animal's nutritional needs.Sold through an extensive network of independent dealers and farm and fleet retailers, there is a great chance that you are never far from a Purina Feed dealer. In 2001, Purina Mills was purchased by Land O'Lakes, Inc. out of Minneapolis, Minnesota. However, Purina Mills marketing and research are still headquartered in Gray Summit, overlooking the rolling hills of the 1,188-acre LongView Animal Nutrition Center.