For over one hundred years, Purina Mills has been the leader in the area of animal science and nutrition. Our strong sense of responsibility to animals and their owners is reflected in the unconditional quality of our feeds, backed by years of extensive research in the area of animal nutrition. At the LongView Animal Nutrition Center in Gray Summit, Missouri, nutritionists, veterinarians, and managers observe firsthand the interrelationship of good feed practices, good health, proper growth and development, and optimum performance. Our commitment to research helps keep Purina on the leading edge of nutritional science.