Mustang Horse: Health, Temperament, Care & Costs

Mustangs are free-roaming horses descended from horses brought to North America by Spanish and later European settlers. Today, many live on public lands in the western United States and are managed through the Bureau of Land Management (BLM) adoption program. Adult mustangs vary by herd, but many stand about 14 to 16 hands and weigh roughly 700 to 1,000 pounds. They are often admired for their hardiness, sure-footed movement, and efficient use of feed.

Temperament depends heavily on the individual horse, age, handling history, and training. A mustang can be thoughtful, alert, and deeply bonded to familiar people, but many are also more reactive to pressure and novelty than a horse raised in domestic handling from birth. For some pet parents, that intelligence and sensitivity are exactly the appeal. For others, it means the horse is a better fit with an experienced trainer and a patient, low-stress routine.

In daily life, mustangs usually do best with consistent handling, turnout, social contact with other horses, and clear boundaries. They are not automatically "easy" because they are hardy. Their care still needs the same basics as any horse: forage-first feeding, hoof care, dental care, vaccines, parasite monitoring, and prompt attention to lameness, weight changes, or behavior shifts.

If you are considering adoption, remember that the horse itself may be the smallest part of the long-term commitment. Training, fencing, feed, farrier work, and emergency veterinary care matter more than the initial adoption fee. A good match between horse, pet parent, facility, and training plan is what sets everyone up well.

Mustangs are often described as hardy, and many are. Still, they are not immune to disease. Once in domestic care, they can develop the same common equine problems seen in other horses, including colic, dental disorders, hoof abscesses, skin disease, lameness, and parasite-related illness. Their efficient metabolism can also become a problem in rich pasture or high-calorie feeding programs, especially if weight gain creeps up over time.

One important concern is equine metabolic syndrome (EMS) and laminitis risk in easy keepers. Horses that gain weight easily, develop a cresty neck, or show fat pads behind the shoulder or around the tailhead may need a diet review with your vet. Obesity in horses raises the risk of insulin dysregulation and laminitis, which can become painful and life-changing if missed.

Dental wear patterns also matter. Horses need regular oral exams because sharp enamel points, hooks, ramps, and other dental changes can lead to quidding, weight loss, bad breath, and poor performance. A mustang that was previously feral may also arrive with limited handling for mouth, feet, and injections, so preventive care sometimes has to be built gradually and safely.

Behavior changes can be an early health clue. A horse that becomes suddenly reactive, reluctant to move, foot-sore, dull, or hard to catch may be dealing with pain rather than attitude. Your vet can help sort out whether the issue is metabolic, orthopedic, dental, gastrointestinal, or training-related.

The initial cost range for a mustang can be surprisingly low compared with many domestic riding horses. Standard BLM adoption events commonly start at $125 per horse, and the federal adoption incentive program was discontinued on March 3, 2025, so adopters should not expect a cash incentive now. That said, the purchase or adoption fee is only the beginning.

For ongoing care, many US pet parents should plan on roughly $3,000 to $8,000+ per year for one horse, depending on whether the horse lives at home or at board, local hay costs, farrier schedule, and how much training support is needed. A modest at-home setup may still involve hay, feed, fencing upkeep, bedding, manure management, vaccines, dental work, deworming based on fecal testing, and farrier visits every few weeks. Full board can add $300 to $1,200+ per month in many areas, with training board often higher.

Routine veterinary and hoof care also add up. Many pet parents spend about $300 to $800 per year on core wellness care alone, then $40 to $120 every 6 to 8 weeks for farrier work, depending on trim versus shoes and region. Dental floating often falls around $150 to $350, and emergency visits can quickly move into the hundreds or thousands.

Mustangs may also need more front-loaded training and handling support than a seasoned domestic trail horse. Budgeting $500 to several thousand dollars for groundwork, gentling, saddle training, or professional help is realistic and often money well spent. Conservative planning is kinder than hoping problems will not happen.

Most mustangs do best on a forage-first diet. As a general rule, horses should get enough hay and pasture to support gut health and steady body condition, with many adult horses eating around 2% of body weight per day in total forage and feed. Free-choice hay intake may run closer to 2% to 2.5% of body weight in some horses. Clean water is essential, and many adult horses drink about 5 to 10 gallons daily, with higher needs in heat, work, lactation, or dry-forage diets.

Because many mustangs are easy keepers, richer pasture and grain-heavy diets can cause trouble. A horse that maintains weight easily may need lower nonstructural-carbohydrate forage, careful pasture access, and a ration balancer instead of calorie-dense concentrate. Your vet can help decide whether your horse needs more calories, fewer calories, or a different mineral balance.

Rapid diet changes raise the risk of digestive upset. Any switch in hay, pasture time, or concentrate should happen gradually over about 7 to 14 days when possible. If your mustang is underweight after adoption, resist the urge to push calories too fast. Refeeding plans work best when they are structured, monitored, and paired with a dental exam, parasite review, and a check for pain or chronic disease.

Treats should stay small and consistent with the horse's overall diet. For overweight or laminitis-prone horses, even "healthy" treats can add up. Body condition scoring, neck crest checks, and regular weight-tape tracking are practical ways to catch problems early.

Mustangs are typically athletic, efficient movers with good stamina, but their exercise needs still depend on age, training level, hoof condition, and body condition. Daily turnout is important for both physical and mental health. Many do best with regular movement, social interaction, and a predictable routine rather than long periods of confinement followed by intense work.

A newly adopted or recently gentled mustang often needs a slower ramp-up than a horse already comfortable with domestic handling. Early work may focus on leading, tying, hoof handling, trailer loading, desensitization, and calm responses to pressure. That foundation matters as much as ridden miles. Pushing too much too soon can create setbacks, soreness, or fear-based behavior.

For a healthy adult horse in regular work, aim for consistent conditioning instead of weekend-only exercise. Mix walking, hill work, transitions, trail exposure, and rest days. In hot weather, reduce forced exercise and make sure shade, water, and recovery time are available. Horses can develop heat stress, especially when humidity is high or fitness is poor.

If your mustang becomes stiff, short-strided, unwilling to move forward, or unusually reactive under saddle, pause and reassess. Hoof pain, saddle fit issues, dental discomfort, ulcers, and musculoskeletal strain can all show up as "behavior" first. Your vet can help decide when a training issue may actually be a medical one.

Preventive care for a mustang should look much like preventive care for any other horse, but handling history may shape how quickly you can do everything safely. Core vaccination plans are built with your vet based on age, travel, exposure, and local disease risk. The AAEP lists tetanus, rabies, West Nile virus, and eastern/western equine encephalomyelitis as core vaccines for horses, while influenza, herpesvirus, strangles, Potomac horse fever, and others are risk-based.

Parasite control is no longer a one-size-fits-all calendar. Current equine guidance favors fecal egg count-based deworming to reduce unnecessary treatment and slow resistance. Many adult horses are low shedders and may not need frequent deworming, while moderate or high shedders need a more active plan. Your vet may also recommend periodic fecal egg count reduction testing to check whether a dewormer is still working on your farm.

Hoof and dental care are easy to underestimate. Most horses need farrier attention about every 6 to 8 weeks, though the exact interval varies. Regular dental exams are also important because painful mouth changes can affect weight, behavior, and performance long before they are obvious. If a mustang is difficult to handle for feet or oral work, training and low-stress restraint planning are part of preventive care too.

See your vet immediately for colic signs, sudden lameness, a hot painful hoof, neurologic changes, trouble breathing, eye pain, or signs of heat stress. Preventive care is not only about vaccines and deworming. It is also about noticing small changes early, before they become emergencies.