Nutrition Pop Quiz: Test Your Equine Nutrition Knowledge Know equine nutrition? Take this quiz (sponsored by Formula 707) & enter to win BarnIQ Combo Daily Packs! By The Horse&Rider Staff | October 2, 2019 | 1 minute read Good equine nutrition begins with knowledge. Take the quiz below to show what you know, and to learn even more. What did you think of this article? Submit Rating Thank you for your feedback!