RumaMag Mineral

RumaMag is an 18% magnesium mixing mineral medicated with Rumensin.

Rumag contains the prilled (dust free) form of magnesium oxide which optimizes magnesuim absorption in the bloodstream while the inclusion of Rumensin allows cattle to better digest feed which increases the rate of weight gain for pastured cattle including, slaughter, stocker, feeder and dairy and beef replacement heifers.

Guaranteed Analysis

Calcium Minimum 10.00%
Calcium Maximum 12.00%
Phosphorus Minimum 6.00%
Magnesium Minimum


Potassium Minimum 0.10%
Salt Minimum 11.50%
Salt Maximum 13.50%
Zinc Minimum  3,000 ppm
Manganese Minimum  3,000 ppm
Copper Minimum 1,800 ppm 
Iodine Minimum 50 ppm 
Cobalt Minimum 20 ppm 
Selenium Minimum 35 ppm 
Vitamin A Minimum IU/Lb 400,000 
Vitamin D3 Minimum IU/Lb 75,000 
Vitamin E Minimum IU/Lb 200 


Active Drug Ingredient
 Monensin 1,600  g/ton
Other Ingredients
Distillers dried grains with solubles, dicalcium phosphate, monocalcium phosphate, calcium carbonate, molasses products, salt, magnesium sulfate, magnesium oxide, ethylenediamine dihydriodide, zinc sulfate, zinc proteinate, manganese sulfate, manganese proteinate, copper sulfate, copper proteinate, cobalt carbonate, cobalt proteinate, vitamin A supplement, vitamin D3 supplement, vitamin E supplement, mineral oil, sodium selenite, selenium yeast.

Feeding Directions

Burkmann Rumamag Mineral must be mixed with grain or other feed components to provide the intended medication in not less than one pound of feed/head/day.  Rumamag Mineral mineral must be fed at a rate of no less than one ounce nor more than 4 ounces/head/day to provide 50 to 200 mg monensin/head/day.  Four ounces of Rumamag Mineral provides 3 mg of selenium.  Feeding higher levels of selenium is not permitted.  Suggested mixing rates to provide 4 ounces of Rumamag Mineral for common feeding levels are shown below. .  During the first 5 days of feeding, cattle should receive no more than 100 mg per day contained in not less than 1 pound of feed. 

Lbs feed/head/day

Lbs Rumamag added/ton of feed

3 165
4 125
5 100
6 83
7 71
8 62
9 55
10 50


CAUTION:  Do not allow horses or other equines access to feeds containing monensin.  Ingestion of monensin by equines has been fatal.  Monensin- medicated cattle and goat feeds is safe for use in cattle and goats only.   Consumption by unapproved species may result in toxic reactions. Do not feed undiluted.  Feeding undiluted or mixing errors resulting in high concentrations of Monensin could be fatal to cattle and could be fatal in goats. Do not exceed the levels of monensin recommended in the feeding directions, as reduced average daily gains may result.  If feed refusals containing Monensin are fed to other groups of cattle, the concentration of Monensin in refusals and amount of refusals few should be taken into consideration to prevent Monensin overdosing. 

WARNING:  A withdrawal period has not been established for monensin in pre-ruminating calves.  Do not use in calves to be processed for veal.

CAUTION: Contains added copper, do not feed to sheep.

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