Introduction
Bringing a new horse into your facility is exciting but stressful for the animal. Proper feeding during the adaptation period is crucial to minimize stress, support immune function, and establish a healthy routine. This guide provides evidence-based advice on nutrition for newly arrived horses.
Recommended Diet Types
During the first few weeks, focus on familiar and easily digestible feeds. The best options include:
- Good quality hay (timothy, orchard grass, or brome) – free-choice to mimic natural grazing.
- Balanced grain feed – low in starch (e.g., beet pulp, rice bran, or extruded feeds) to avoid digestive upset.
- Pelleted complete feeds – if the horse is accustomed to them.
- Soaked hay cubes or pellets – for horses with dental issues or dehydration.
Avoid sudden changes; gradually transition to your preferred feed over 7–10 days if needed.
Portion Sizes and Daily Calorie Needs
Calorie requirements depend on age, body weight, activity level, and body condition. Use the table below as a starting point:
| Horse Type | Body Weight (lbs) | Hay (lbs/day) | Grain (lbs/day) | Total DE (Mcal/day) |
|---|---|---|---|---|
| Mature (maintenance) | 1000 | 15–20 | 0–3 | 16–18 |
| Mature (light work) | 1000 | 15–20 | 3–5 | 20–22 |
| Growth (yearling) | 700 | 10–14 | 4–6 | 18–20 |
| Senior (over 20) | 1000 | 12–18 (easy chew) | 2–4 (senior feed) | 16–20 |
Adjust based on body condition score (aim for 5 out of 9). Overfeeding can cause colic, underfeeding leads to weight loss.
Feeding Frequency and Schedule
Horses are natural grazers; mimic this with 3–4 meals per day. A sample schedule:
- Morning (6–7 AM): Hay (35% of daily hay) and grain.
- Noon (12 PM): Hay (30%).
- Evening (5–6 PM): Hay (35%) and grain.
- Late night (10 PM): Optional hay if needed.
Always provide fresh water ad libitum, and keep feeding times consistent.
Essential Nutrients
- Protein: 10–14% for growth/repair; lysine and methionine are critical.
- Fats: 3–6% (increase to 8–10% for slow-release energy).
- Carbohydrates: primarily fiber from hay; limit starch to <20% of the diet.
- Vitamins: A, D, E (antioxidant), B complex (B12, biotin).
- Minerals: Calcium and phosphorus (ratio 1.2:1 to 2:1), copper, zinc, selenium, salt.
Foods and Ingredients to Avoid
Never feed these to horses:
- Moldy or dusty hay.
- Lawn clippings (high sugar, rapid fermentation).
- Grain overload (colic risk).
- Ionophores (e.g., monensin) – fatal.
- Fruit pits, avocado, chocolate, caffeine.
- Nightshade plants, onions, garlic (high doses).
Hydration Requirements
New horses may hesitate to drink. Offer clean, fresh water at 60–70°F (15–21°C). Typical intake: 8–12 gallons/day. Soak hay or add salt to encourage water consumption. Monitor for dehydration (skin tent test, dry gums).
Beneficial Supplements
- Electrolytes: Sodium chloride, potassium, magnesium – especially if stressed or sweating.
- Probiotics/yeast culture: Saccharomyces cerevisiae to stabilize gut flora.
- Vitamin E/selenium: Antioxidant support, 1,000–2,000 IU/day.
- Biotin: 20–30 mg/day for hoof integrity.
Always introduce supplements one at a time.
Feeding Differences: Young, Adult, and Senior Horses
Foals/Weanlings: Need milk replacer or creep feed (16–18% protein). Multiple small meals daily. Adults: Balanced hay and ration balancer. Seniors: Easily chewed forages (hay cubes, soaked pellets), higher fat for calories, added joint support (glucosamine, chondroitin).
Signs of Healthy vs. Poor Diet
Healthy: Shiny coat, bright eyes, consistent manure (formed, not too dry/wet), good body condition, calm demeanor, normal appetite. Poor diet: Dull coat, weight loss/gain, diarrhea, colic, lethargy, hoof cracks, or picky eating.
Monitor the new horse closely for 2–3 weeks. Consult a veterinarian or equine nutritionist for personalized plans.