EnergiLass Rumen Booster Plus

A supplement for stressed cattle in the feedlot or on pasture; for cows before and during the breeding season.

  • Life Stage:  Calf, Cow/Calf, Heifer
  • Feed Type:  Low-Moisture Block
  • Feed Form:  Block
  • Packaging:  250-lb tub

Product Description

A protein, mineral and vitamin supplement formulated for preconditioning, stressed, shipped-in feeder cattle or cattle in sick pens on all types of rations. Rumen Booster Plus is the next evolution in supplements for stressed cattle, containing additional ingredients to keep calves and cattle on feed and growing.

Features & Benefits

NutriVantage® for beef

A proprietary ingredient, research proven to increase dry matter intake, and reduce the impact of stress.

MicroGold™ MC

A proprietary source of yeast, research shown to improve dry matter intake, and feed efficiency.


A rich source of yeast cell wall nutrients containing b-glucans (1,3 and 1,6) and mannanoligosaccharides. B-glucans have been shown to enhance the immune system of animals. Mannanoligosaccharides have been showing to bind to intestinal bacterial pathogens thereby inhibiting attachment onto the intestinal mucosa.

Trace mineral amino acid complexes

More readily available form of copper, zinc, manganese, and cobalt, compared it inorganic sources, which support a healthy immune system, and overall cattle performance.

Selenium yeast

A source of selenium that is easily metabolized, supports performance and immune function.

B vitamins

The addition of B vitamins, including thiamine, helps to stimulate appetite in stressed cattle.

Added salt

Salt encourages supplement and water intake, both important in stressed calves; and helps maintain electrolyte balance.

Trace mineral fortification

Formulated to supply key trace minerals to help support optimal animal health and performance.

Optimal vitamin fortification

Vitamins A, D and E support growth, metabolism, reproductive performance and proper immune system function.

Consistent intake

The unique manufacturing process results in a product that cattle must lick in order to consume. This results in consistent, predictable intake that helps to manage costs per head per day.

Nutritional Information

Guaranteed Analysis
Crude Protein, min 12.00%
Crude Fat, min 5.00%
Crude Fiber, max 3.00%
Calcium, min 1.50%
Calcium, max 2.00%
Phosphorus, min 2.00%
Salt, min 2.00%
Salt, max 2.50%
Magnesium, min 0.40%
Potassium, min 2.00%
Cobalt, min 37 ppm
Copper, min 510 ppm
Iodine, min 25 ppm
Manganese, min 1,400 ppm
Selenium, min 8 ppm
Zinc min 1,700 ppm
Vitamin A, min 200,000 IU/lb
Vitamin D3, min 20,000 IU/lb
Vitamin E, min 800 IU/lb
Thiamine, min 95 mg/lb


Molasses Products, Processed Grain By-Products, Monocalcium Phosphate, Dicalcium Phosphate, Plant Protein Products, Vegetable Oil, Reed Sedge Peat, Salt, Yeast Extract, Brewer's Liquid Yeast, Magnesium Oxide, Zinc Amino Acid Complex, Manganese Amino Acid Complex, Copper Amino Acid Complex, Cobalt Glucoheptonate, Vitamin E Supplement, Manganese Sulfate, Calcium Carbonate, Zinc Sulfate, Roughage Products, Copper Sulfate, Sodium Selenite, Vitamin A Supplement, Selenium Yeast, Ethylenediamine Dihydroiodide, Choline Chloride, Thiamine Mononitrate, Cobalt Carbonate, Copper Chloride, Calcium Iodate, Vitamin D-3 Supplement, Niacin Supplement, D-Calcium Pantothenate, Riboflavin Supplement, Menadione Sodium Bisulfite Complex, and Vitamin B-12 Supplement.

Feeding Directions

Feed Kent EnergiLass Rumen Booster Plus to stressed or shipped in feeder cattle, or cattle in sick pens on all types of rations. Begin feeding to breeding cattle 30 days prior to and throughout the breeding season. Place barrel(s) in a dry location near the animal's source of water or loafing area. Consumption will vary depending on animal size; health; quality, source, and availability of roughage and/or grains; number of animals per barrel and barrel location. Offer one 250 lb barrel to every 10 head when cattle are stressed and one for every 30 head when cattle are healthy. Cattle typically consume between 0.25 and 0.75 lbs per head daily. Daily intake values are approximate. To increase consumption, decrease the number of animals per barrel. To reduce consumption, increase the number of animals per barrel, or place barrels away from the normal loafing area.

Provide clean, fresh water at all times. DO NOT feed free-choice salt and/or minerals, provide these in the regular ration.


This product, which contains added copper, should not be fed to sheep or any species that have a low tolerance to supplemental copper.


Use as directed. Consumption of selenium should not exceed 3 mg per head per day.

NutriVantage® Nutrition Optimizer®

NutriVantage Nutrition Optimizer is an exclusive research-driven nutritional feed supplement that is only available in Blue Seal branded products.

Learn more about NutriVantage

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