Using Rumensin for Beef Cows Rumensin is not a new product. The compound was first cleared by the FDA for use in cattle in 1975. The product is very safe, working only in the rumen and never entering the bloodstream. Because of this, it never enters the muscle products or the food chain for humans. In growing beef steers and heifers on pasture, Rumensin® is a proven management tool that optimizes your investment by improving cattle weight gain, even as the quality of forage changes from year to year.1 For pennies per head per day, Rumensin delivers 20 lbs or more per head of additional selling weight during a 100-day grazing period.1 Monensin, commonly referred to by its brand name, Rumensin, is an ionophore which targets gram-positive bacteria in the rumen. By reducing the gram-positive bacteria, the gram-negative bacteria are allowed to thrive. This leads to a shift in volatile fatty acids in the rumen in the favor of propionate, which is more efficiently used by cattle. In growing cattle on pasture, Rumensin is a proven management tool that optimizes your investment by improving cattle weight gain. Download Trusted By Generations Rumensin brings you consistent quality and value beyond product. Download Learn more about the value of Rumensin on your beef operation. Find Ways to Optimize Cattle Feed Costs Rumensin was first approved by the U.S. Food and Drug Administration for feedlot cattle to improve feed efficiency. Cattle feeders started adopting Rumensin in their commercial feedyards and found the prevalence of coccidiosis started to decline. Rumensin means greater milk production efficiency 2 —up to 4% more energy per pound of feed, for a return on investment of at least 5:1. 1 Rumensin's ability to help cows get more energy from every pound of feed provides flexibility when formulating rations. monensin (Rumensin®) and lasalocid (Bovatec®) are ap­ proved for beef cattle. Laidlomycin ( Cattlyst®) is expected to be approved by spring of 1994. Monensin and lasalocid are approved coccidiostats in cattle. Monensin Monensin is marketed by Elanco Products Com­ pany, a division of Eli Lilly and Company under the trade name Rumensin®. Monensin medicated cattle and goat feeds are safe for use in cattle and goats only. Consumption by unapproved species may result in toxic reactions. Feeding undiluted or mixing errors resulting in high concentrations of monensin has been fatal to cattle and could be fatal to goats. Rumensin is registered for improved weight gain and feed efficiency in cattle and sheep, improved reproductive performance in heifers and as an aid in the prevention of coccidiosis in cattle, sheep, goats and chickens. Rumensin is a proven management tool that optimizes your investment by improving cattle weight gain and feed efficiency, even as the quality of forage changes from year to year. 1 Rumensin is approved for use in all production phases in the beef industry. When you choose Rumensin, you can trust that it is better suited for feed mixing with 2: 1wAn.