Easy-to-feed supplement for consistent nutrition and seasonal fly control. You can count on our research-backed formula to provide supplemental nutrition, fly control and gastric support in a palatable form designed for multi-horse convenience. High-quality ingredients such as alfalfa, rice bran and flaxseed are paired with cutting-edge technology to help ensure consistent intake and nutrient delivery. The formula also includes ClariFly® Larvicide. This feed additive passes through the horse and is expelled in the manure where house and stable flies lay their eggs, preventing the emergence of adult flies.