Rumensin®, or monensin, is used in feedlots to help prevent acidosis and to control feed intake on high-grain diets while increasing gains in beef cattle. ... Rumensin® (monensin) is used in chicken feed also. Rumensin, however, can be toxic to sheep.

How much rumensin will kill a cow?

in cattle and poultry---a lethal dose is about 20 to 34 milligrams per kilogram (mg/kg) of body weight for cattle and 90 to 200 mg/kg in poultry---but these animals generally tolerate the drug well. Horses, as well as rabbits, humans and dogs, do not.

Is rumensin toxic to chickens?

Single oral doses of crystalline· monensin sodium at 150, 200, and 250 mg/kg body weight were toxic to all broiler chickens studied. These dosages assured toxicosis and resultant lesions. The lethal dose 50 of monensin sodium in broiler chickens is 200 mg/kg [2].