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Purina Animal Nutrition

Purina® Equine Senior® Active Horse Feed

Purina® Equine Senior® Active Horse Feed

*With Outlast® Gastric Support Supplement*

When our equine companions reach their “senior years” it doesn’t necessarily mean they are ready to slow down. But their nutritional needs change over time, and they need a diet that addresses the unique needs of an aging body. Equine Senior® Active horse feed is designed to be fed with hay or pasture and is formulated with highly digestible energy sources and nutrition your senior horse needs to enjoy an active life for years to come.

Regular price $34.49 USD
Regular price Sale price $34.49 USD
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Exclusive ActivAge® Prebiotic

Scientifically studied in senior horses to support optimal function of the aging immune system, support optimal mobility in aged horses, and this controlled sugar and starch formula, along with ActivAge® Prebiotic Technology, supports an appropriate metabolic response to feeding

Purina® Amplify® High-Fat Nugget

Multiple sources of fatty acids including stabilized rice bran, flaxseed, and vegetable oils help support body condition, shine and bloom

Controlled Starch and Sugar Formula

Appropriate for aging horses with carbohydrate sensitivities

Concentrated Nutrition

For seniors who can still eat hay

Outlast® Gastric Support

Scientifically shown to support gastric health and comfort and proper pH

100% Vitamins & Minerals

Support overall health of senior horses*

*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

Added Beet Pulp

And other highly digestible fiber sources help maintain body condition and support digestion

Nutrition for Healthy Activity

Multiple energy sources help keep aging horses active

NutrientMin / MaxAmount
Crude ProteinMIN14.00 %
LysineMIN0.90 %
MethionineMIN0.25 %
ThreonineMIN0.40 %
Crude FatMIN10.00 %
Crude FiberMAX18.00%
Acid Detergent Fiber (ADF)MAX21.00 %
Neutral Detergent Fiber (NDF)MAX36.00 %
Dietary StarchMAX9.00 %
SugarsMAX7.00 %
Calcium (Ca)MIN0.95 %
Calcium (Ca)MAX1.45 %
Phosphorus (P)MIN0.60 %
Sodium (Na)MAX0.55 %
Chloride (Cl)MIN0.35 %
Magnesium (Mg)MIN

0.25 %

PotassiumMIN1.10 %
Manganese (Mn)MIN200.00 PPM
Cobalt (Co)MIN0.55 PPM
Copper (Cu)MIN40.00 PPM
IodineMIN3.00 PPM
Selenium (Se)MIN0.60 PPM
Zinc (Zn)MIN280.00 PPM
Sulfur (S)MIN

0.45 PPM

Iron (Fe)MIN200.00 PPM
Vitamin AMIN3000 IU/LB
Vitamin D3MIN800 IU/LB
Vitamin EMIN125 IU/LB
ThiaminMIN6.35 mg/lb
RiboflavinMIN2.49 mg/lb

Start with the amounts of Equine Senior® Active horse feed 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
Minimum Hay or Equivalent Pasture*9.5012.0014.50
|Equine Senior® Active Horse Feed**
Maintenance — Average Activity2.753.504.25
Light Work4.255.506.50
Moderate Work6.007.258.75
Heavy Work7.509.2511.00
Early Gestation (first 250 days)3.003.754.50
Late Gestation (last 90 days)4.505.506.50
Breeding Stallion5.506.507.75

 * This is the recommended minimum amount of hay to be fed. If feeding more hay, reduce the feeding rate of Equine Senior® Active horse feed by 1.0 lb for every additional 2.0 lbs of hay fed.
 ** Do not feed less than 0.3 lbs per 100 lbs of body weight per day. If your horse gains too much weight at that minimum feeding rate, then you should replace Equine Senior® Active horse feed with Purina® Strategy® Healthy Edge® horse feed or a Purina® Ration Balancing Feed.

A 4 lb meal of Equine Senior® Active Horse Feed supplies a full serving of Outlast® Supplement.



Follow label directions: feeding added selenium at levels in excess of 0.3 ppm in the total diet is prohibited.
Wash hands after feeding/handling animals. 

Not for human consumption. Wash feed/water containers regularly.



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 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.

For horses sensitive to dietary carbohydrates, please consult with a veterinarian or nutritionist for a recommended diet

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