Whether rodent, fowl, bovine, or swine, Land O'Lakes Purina Feed will have something for it to eat. As the largest US producer of animal feeds, the company addresses the dietary needs of livestock (poultry, swine, and dairy and beef cattle); specialty animals (such as llamas and emus); zoo and lab animals; wild birds; and companion animals (pets). In addition to feed, the company makes milk-replacer products for young animals, premixes, supplements, and custom-mixed feeds, along with offering farm-management advice and services. It is a subsidiary of dairy giant Land O'Lakes, Inc.