NRB 40-25 300R 90T


A beef cattle supplement for mixing steer and heifer feedlot rations.

  • Life Stage:  Finisher
  • Feed Type:  Supplement
  • Feed Form:  Pellet
  • Packaging:  50-lb bag

Product Description

NRB 40-25 300R 90T is a “no roughage” supplement designed to be mixed with corn and fed as the sole ration to finishing beef cattle and dairy beef steers.

Features & Benefits

Simplified nutrition

This high fiber pellet only requires corn (cracked or whole shell) to complete the ration. No additional roughage is needed. The mixed ration can be fed in a self-feeder or hand fed daily.

Trace minerals and vitamins

Formulated to provide trace minerals and vitamins to help support optimal animal health and performance.

Rumensin and Tylan

Rumensin is added for improved feed efficiency. Tylan is added to reduce the incidence of liver abscesses.

Nutritional Information

Guaranteed Analysis
Crude Protein, min 40.00%
NPN, max 25.00%
Crude Fat, min 0.50%
Crude Fiber, max 16.00%
Calcium, min 4.00%
Calcium, max 5.00%
Phosphorus, min 0.50%
Salt, min 0.25%
Salt, max 0.75%
Cobalt, min 1.8 ppm
Zinc min 600 ppm
Vitamin A, min 19,000 IU/lb
Vitamin D3, min 1,900 IU/lb
Vitamin E, min 19 IU/lb


Plant Protein Products, Processed Grain By-Products, Urea, Animal Protein Products, Roughage Products, Calcium Carbonate, Salt, Potassium Carbonate, Potassium Sulfate, Magnesium Sulfate, Vitamin A Acetate, Vitamin D3 Supplement, Vitamin E Supplement, Animal Fat, Calcium Iodate, Ferrous Sulfate, Copper Sulfate, Cobalt Carbonate, Manganese Sulfate, Zinc Sulfate, Potassium Chloride, Sodium Selenite, Ethoxyquin and BHT (preservatives).

Active Drug Ingredient Amount
Monensin 300 g/ton
Tylosin Phosphate 90 g/ton

Feeding Directions

Mix 200 pounds of this supplement with 1800 pounds of corn and feed as the sole ration to steers weighing 700 pounds and up and to heifers weighing 600 pounds and up, after they have been worked up to a full feed. The complete feed will provide 30 grams Monensin per ton and 9 grams of Tylosin per ton. Feed continuously at the rate of 20 lb per day to provide 50-480 mg Monensin per head per day and 60-90 mg Tylosin per head per day. No additional improvement in feed efficiency has been shown from feeding monensin at levels greater than 30 g/ton (360 mg monensin per head per day).


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


Do not allow horses or other equines access to feed containing Monensin. Ingestion of Monensin by equines has been fatal. Monensin medicated cattle and goat feeds are safe for use in cattle and goats only. Consumption by unapproved species may result in toxic reactions. 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 concentrations of Monensin in the refusals and the amount of refusals fed should be taken into consideration to prevent Monensin overdosing.

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