Nutrena NutreBeef Carmelyx 28-10 Low Moisture 60lb tub with fly control is a nutritional protein supplement containing S-Methoprene Insect Growth Regulator for continuous feeding to all classes of beef and dairy cattle through the horn fly season. This product contains Altosid IGR. This product will provide cattle with the nutrients they need and reduce stress associated with heavy fly burdens. NutreBeef Carmelyx is a free choice, nutritionally balanced, low moisture, high energy supplement that helps improve forage digestibility at a very low cost per head per day. The unique combination of ingredients are cooked and then poured into our convenient tubs to set up. The right blend of ingredients and form maximize herd performance while controlling intake and costs.