Purina Mills Omolene 300 Mare & Foal Feed - 50 lb

Item No. OM300
3.4 out of 5 Customer Rating
in-store pickup only

Purina Mills Omolene 300 Mare & Foal Feed - 50 lb

Item No. OM300
3.4 out of 5 Customer Rating

This item is available for in-store pick up only. Please email us or call us for more information.

in-store pickup only
  • In Stock
*Additional Shipping Charges Apply

It took over 100 years of industry-leading research and innovation to build today’s Purina® Omolene® horse feed lineup. We started with naturally nutritious high-quality whole grains packed with antioxidants, phytonutrients and prebiotic fibers. From there, countless nutrition studies and feeding trials at the Purina Animal Nutrition Center led to scientific breakthroughs that keep our formulas on the cutting-edge of equine nutrition and performance. Because only innovations proven to have the highest level of performance and safety earn their place in Purina® Omolene® horse feeds, you can feed with full confidence. Whether you need to fuel intense competitive performance, support your horse’s gastric health or nourish the growth of the next generation of equine athletes, Omolene® feeds are built to help solve your toughest nutritional challenges.

  • Concentrate Feed: Designed to be fed with hay or pasture
  • Fortified with Milk Components: Including amino acids and polysaccharides as found in mare’s milk for optimal muscle growth and bone development in foals
  • Healthy Appearance: Contains Purina® Amplify® high fat nugget to maintain body condition shine and bloom
  • Nutritious Whole Grains: A natural source of antioxidants, phytonutrients, and prebiotic fibers
  • Purina® Amplify® High-Fat Nugget: A proprietary blend of vegetable oils, flax seed and rice bran for an optimal fatty acid profile to support weight gain, development, shine and bloom
  • Purina® Amplify® High Fat Nugget: A proprietary blend of vegetable oils, flaxseed, and rice bran to support weight gain, shine, and bloom
  • Balanced Nutrition: Designed to be fed with hay and/or pasture, this formula provides 100% of the required vitamins and minerals when fed as directed.*
    • *When fed as directed, with free-choice or added salt, based on Nutrient Requirements of Horses. Sixth Revised Edition – 2007, published by the National Research Council
  • Year-Round Quality: Unique soy oil-molasses blend with lower sugar and higher fat than traditional cane molasses helps decrease bricking in winter and drying out in summer
  • Proven Palatability: Countless trials at the Purina Animal Nutrition Center and in the field verify exceptional palatability to support consistent nutrient intake, even in the pickiest eaters
  • Ingredient Integrity: Only ingredients that meet our stringent quality criteria make it into our mills and feed bags. Any shipment that doesn’t meet or exceed our standards is turned away.

50 lb.


  • Crude Protein MIN 16.00 %
  • Lysine MIN 0.90 %
  • Crude Fat MIN 6.00 %
  • Crude Fiber MAX 7.00 %
  • Acid Detergent Fiber (ADF) MAX 10.00 %
  • Neutral Detergent Fiber (NDF) MAX 23.00 %
  • Calcium (Ca) MIN 0.80 %
  • Calcium (Ca) MAX 1.30 %
  • Phosphorus (P) MIN 0.55 %
  • Copper (Cu) MIN 60.00 PPM
  • Selenium (Se) MIN 0.60 PPM
  • Zinc (Zn) MIN 220.00 PPM
  • Vitamin A MIN 3000 IU/LB
  • Vitamin E MIN 125 IU/LB

Feeding Directions


FEEDING DIRECTIONS WITH HAY OR PASTURE: Start with the amounts of Omolene® 300 Mare & Foal given for the weight and lifestyle of the horse. After observing the horse for a period of time, the amount fed may be gradually increased or decreased to obtain the desired body condition and weight.
For feeding directions outside the ranges addressed in these feeding charts, please contact your local Purina® retailer or Purina Customer Service at 800-227-8941.

  Weight of Horse in Pounds
  800 1,000 1,200
Minimum Hay or Equivalent Pasture* 9.5 12.0 14.5
Omolene® 300 Horse Feed (lbs/day)**
Late Gestation                           4.0 5.25 6.25
Lactating Mare 8.0 9.5 11.0***


Weaned Foal Through Yearling Weight of Horse in Pounds
  300 400 500 600 700
Omolene® 300 (fed with appropriate amounts of forage) 7.25-7.75 7.50-8.50 7.00-9.25 7.50-9.50 7.75-10.00

*This is the recommended minimum amount of hay to be fed. If feeding more hay, you may reduce the feeding rate of Omolene® 300 needed to maintain appropriate body condition.

** Do not feed less than 0.35 lbs/100 lbs body weight/day (3.5 lbs per 1000 lbs BW) or 0.75 lbs per 100 lbs of body weight per day for yearlings (3.75 lbs per 500-lb BW). If your horse gains too much weight at that minimum feeding rate, replace Omolene® 300 with Purina® ENRICH PLUS® Ration Balancing Horse Feed.

*** Feeding rates of Omolene® 300 and forage may be adjusted or feed may be top-dressed with Purina® Amplify® High Fat Supplement for additional calories.

**** Use the lower feeding rate for moderate growth rate and the higher feeding rate to support more rapid growth.

Feeding Directions

  • SUCKLING FOALS: Begin offering feed within two weeks of birth. Feed 1.0 lb of Omolene® 300 horse feed per month of age per day.
  • 700-LB WEANLINGS: Horses with expected mature weight of 1,000 lbs or greater may continue on Omolene® 300 or change to Purina® Omolene® 200 Performance horse feed.

Changing To

  • Make the feed change gradually over a period of 7 to 10 days.
  • Mix the new feed with the old, gradually increasing the amount of the new feed while decreasing an equal amount of the old.
  • Changes in the rate of feeding should not exceed 1 pound per day for each horse.


Store in a dry, well-ventilated area protected from rodents and insects. Do not feed moldy or insect-infested feed to animals as it may cause illness, performance loss or death. 


  1. Feeding rates will vary with size, age, temperament, health status, forage quality, climate and activity level. Feed at regular times, at least twice daily. Do not feed more than 0.5 lbs/100 lbs of body weight per meal.  Do not feed free-choice. Prevent the rapid eating by the horse of any feedstuff.
  2. Reduce and/or delay feeding a horse which is hot, excited or showing pain, has fever or diarrhea.  Consult your veterinarian if any problems arise.
  3. Always feed a minimum of 1.0 to 1.2 lbs per 100 lbs of body weight of good quality, clean hay or the equivalent in pasture.
  4. Any feed changes should be made gradually over a period of 7 to 10 days. Changes in the rate of feeding should not exceed 1.0 lb per day for each horse.
  5. Provide fresh, clean water at all times. Provide your horse with access to salt. Consult with your veterinarian regularly and maintain a routine dental, parasite control and health care program for your horse.

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