Our Bison Jerky features bison that is certified by the National Bison Association. They are working diligently to replenish herd numbers as well as the grasslands on which the bison live. By purchasing products registered with the National Bison Association, you're helping them to reach their goal of Bison 1 Million, which is the restoration of one million head of bison! All bison is raised humanely without the use of antibiotics or growth hormones. To learn more, visit www.bison1million.com.