Land O'Lakes Purina Feed is a farmer-owned food production system that provides a variety of animal feed products. It offers the Propel energy nuggets, which is used as a nutritional supplement for lactating and post-fresh dairy ration and utilizes the Macro-Encapsulation technology. The company offers the Architect formulation system, which is a combination of all-milk proteins, fat and complex carbohydrates that promotes gut health in calves. Land O'Lakes Purina Feed provides Amino Acid Advantage, which is supplemented with amino acids and helps calves to form stronger intestinal barriers and keeps pathogens out of the system. It also offers feed under the Dairy Buffer Pak and Buffer Pak XP brands. The company is a part of Land O'Lakes, which is a member-owned cooperative that is a marketer of dairy-based food products for consumers and food service professionals and manufacturers in the United States.