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Purina Animal Nutrition

Purina® Omolene® #400 Complete Advantage Horse Feed

Purina® Omolene® #400 Complete Advantage Horse Feed

Complete feed with built-in forage for breeding and competition horses

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.

When there’s greatness on the inside, it shows on the outside.
Regular price $30.49 USD
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Added Loose Beet Pulp Shreds

Provides an excellent source of fermentable fiber for slow release energy

Built-in Forage

To completely or partially replace the hay or pasture in the horse’s diet

Healthy Appearance

Contains Purina® Amplify® high fat nugget to maintain body condition shine and bloom


Low Dust Ingredients

Contains no barley, oats or alfalfa

Purina® Amplify® High-Fat Nugget

A proprietary blend of vegetable oils, flax seed and rice bran for weight gain, performance, shine & bloom

Soy-Blend Molasses

Helps to prevent bricking in the winter and drying out in the summer

Vitamin & Mineral Fortification

Provides 100% of the required vitamins and minerals when fed as directed

Based on “Nutrient Requirements of Horses Sixth Revised Edition–2007” published by the National Research Council

NutrientMin / MaxAmount
Crude ProteinMIN12.00 %
LysineMIN0.50 %
Crude FatMIN5.50 %
Crude FiberMAX18.00%
Acid Detergent Fiber (ADF)MAX21.00 %
Neutral Detergent Fiber (NDF)MAX35.00 %
Calcium (Ca)MIN0.80 %
Calcium (Ca)MAX1.30 %
Phosphorus (P)MIN0.40 %
Copper (Cu)MIN35.00 PPM
Selenium (Se)MIN0.30 PPM
Zinc (Zn)MIN140 PPM
Vitamin AMIN3000 IU/LB
Vitamin EMIN100 IU/LB
LifestyleWeight of Horse in Pounds
 Omolene® 400 Horse Feed (lbs/day)*
Maintenance 8.7510.7513.00
Light Work10.5013.0015.50
Moderate Work12.2515.0018.25
Early Gestation (first 250 days)9.0011.0013.25

*Omolene® 400 contains high-quality roughage and can be fed without hay. If fed with hay, the feeding rates of Omolene® 400 can be reduced. To meet nutrient requirements, do not feed less than 0.6 lbs per 100 lbs of body weight per day (6 lbs per 1000-lb horse) of Omolene® 400. To meet fiber requirements, do not feed less than 1.2 lbs/100 lbs of body weight per day of Omolene® 400 and hay or pasture equivalent combined.


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.  When fed as a complete feed, a minimum of three meals per day is recommended. Do not feed more than 0.8 lbs/100 lbs (8 lbs per 1000-lb horse) of body weight per meal. Do not feed free-choice. Prevent 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. 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.
  4. 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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