Rumensin: Growing cattle on pasture or in dry lot (stockers, feeders, and dairy and beef replacement heifers) For increased rate of weight gain: Feed 50 to 200 mg/hd/d in at least 1.0 lb of Type C medicated feed. Or, after the 5th day, feed 400 mg/hd/d every other day in at least 2.0 lbs of Type C medicated feed. 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.
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.
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®.
glucose levels in cows after calving receiving the CRC were increased 15%. Another Canadian study reported a 40 % reduction in both clinical ketosis and DA's. Retained placenta were numerically lower for cows fed Rumensin. It was reported that body condition score (BCS) had an impact on milk production response. Cows classified as thin (BCS

Rumensin® for Beef Cattle For over 45 years, producers have trusted Elanco's Rumensin® to deliver consistent, dependable results that add more profit potential to the bottom line. The findings from more than 400 Elanco research studies have made it possible for producers to include Rumensin in ever-changing feed programs and management systems.

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