Introduction
Proper nutrition is the cornerstone of equine health. Whether you own a pleasure horse, a competitive athlete, or a senior companion, understanding safe and reliable feeding practices ensures longevity, performance, and well-being. This guide provides evidence-based recommendations for forage, concentrates, supplements, and hydration.
Recommended Diet Types
Forage (Hay or Pasture)
Forage should form the foundation of every horse's diet, making up at least 50-70% of daily intake. Grass hay (timothy, orchard grass) or legume hay (alfalfa) provides fiber for digestive health. Pasture grazing is ideal when lush grass is available, but monitor for obesity or laminitis in easy keepers.
Concentrates (Grains and Commercial Feed)
Concentrates supply energy, protein, and vitamins. Options include whole oats, steam-flaked corn, or pelleted feeds. Commercial complete feeds are balanced for specific life stages. Always introduce concentrates gradually over 7-10 days to prevent colic.
Supplements
Supplements like vitamins E and C, probiotics, joint supplements (glucosamine, chondroitin), and electrolytes can address specific needs. Consult a veterinarian before adding supplements to avoid overdosing.
Portion Sizes and Caloric Needs
Daily feed intake is typically 1.5-2.5% of body weight in dry matter (forage + concentrates). Use the table below as a guideline (based on a 500 kg horse).
| Activity Level | Hay (kg/day) | Grain/Concentrate (kg/day) | Total DE (Mcal/day) |
|---|---|---|---|
| Maintenance (idle) | 7-10 | 0-1 | 16-20 |
| Light work | 7-9 | 1-2 | 20-22 |
| Moderate work | 7-9 | 2-3 | 22-25 |
| Intense work | 7-8 | 3-4 | 25-30 |
Adjust for age: growing foals need 2-3% body weight; seniors may require easier-to-chew hay or soaked cubes.
Feeding Frequency and Schedule
Horses are trickle feeders and benefit from multiple small meals. Feed at least twice daily (morning and evening) for hay, and divide grain into two to three portions. Maintain a consistent schedule to reduce stress and digestive upset.
Essential Nutrients
Protein
Required for muscle repair and growth. Mature horses need 8-12% crude protein; growing horses need 14-16%. Quality sources: alfalfa, soybean meal.
Fat
Concentrated energy source (up to 10% of diet). Vegetable oils (corn, soy) improve coat condition and stamina.
Carbohydrates
Structural carbohydrates (fiber from hay) are crucial; non-structural carbs (starches) should be limited to avoid laminitis and colic.
Vitamins and Minerals
Vitamins A, D, E, and B-complex are essential. Minerals include calcium, phosphorus (ratio 2:1), magnesium, and trace minerals like copper and zinc. Provide a balanced mineral salt block free-choice.
Toxic and Harmful Foods
- Moldy hay – contains mycotoxins causing colic or respiratory issues.
- Green (unripe) acorns – oak toxicity.
- Wild cherry leaves – cyanide poisoning.
- Lawn clippings – ferment quickly, risk for colic.
- High-starch grains – overfeeding causes laminitis.
- Chocolate, caffeine, avocado – toxic.
- Weeds like ragwort – liver damage.
Water Intake
Horses require 5-10 gallons (20-40 liters) of clean water daily, more in hot weather or during work. Never restrict access; provide heated buckets in winter.
Beneficial Supplements
- Probiotics and prebiotics – support gut health during stress or antibiotics.
- Joint supplements – for older horses or heavy work.
- Electrolytes – replace losses in sweat during exercise.
- Vitamin E and selenium – antioxidant for muscle health.
Feeding Differences by Life Stage
Foals and Weanlings
Start creep feed at 2-3 months. Provide high-protein (16-18%) balanced feed until age 2. Ensure adequate calcium/phosphorus for bone development.
Adults
Maintenance diet with 8-10% protein. Adjust for work: increase energy (fat/carbs) and electrolytes.
Seniors (over 20 years)
Soaked hay cubes or complete senior feed with easy-to-chew texture. May need additional vitamin C and joint support. Watch for dental issues.
Signs of Healthy vs. Poor Diet
Healthy Diet indicators
- Shiny, smooth coat
- Bright eyes and alert demeanor
- Consistent, well-formed manure
- Ideal body condition score (5-6 out of 9)
- Good energy levels
Poor Diet indicators
- Dull, dry coat or hair loss
- Lethargy or excessive nervousness
- Loose stools or constipation
- Weight loss or obesity despite feeding
- Hoof problems (cracks, poor growth)
Regularly assess body condition and consult an equine nutritionist or veterinarian for individualized plans.