The horse stands in its stall, ears frostbitten, coat ruffled, and by morning — colic. The owner is in a panic: fed as usual, watered from a bucket, the stable doesn't seem drafty. Sound familiar? In winter, such stories repeat year after year, and almost always the cause is not the frost itself but a few everyday decisions that seem harmless. Let's go step by step through what exactly breaks down in horse care in winter, how to calculate winter feeding and watering in freezing temperatures, and where the line is that means you need to call the vet.
If your horse is stabled in an unheated barn
Cold itself is not scary for a horse: an adult healthy horse with a normal coat tolerates −15 °C without problems if there is dry bedding and protection from wind. The problem starts when the owner tries to "insulate" the barn and closes the ventilation. The result is a greenhouse: humidity near 90%, ammonia from urine doesn't dissipate, respiratory tracts become inflamed. The cough you hear a week later is not a cold from the chill but a consequence of stuffiness.
Rule: no drafts, but fresh air is a must. Ideally — supply and exhaust ventilation without direct airflow onto the stalls. If there is none, keep the upper vents open even in frost: a horse tolerates dry cold air better than damp and stuffy air.
The temperature in the barn is not a goal but a consequence. For a working horse, the comfort zone is from −5 to +8 °C. If you start heating to +15, the horse does not grow a full winter undercoat and gets colder outside. Plus, bacteria multiply faster in a warm barn.
Winter feeding: count weight, not "portions"
The most common mistake is feeding "as in summer." In winter, a horse spends energy on thermoregulation, and at −10 °C the need for feed units increases by about 10–15% compared to the warm season. If you don't account for this, by February you'll have a horse with sunken flanks and weak immunity.
It's simple: the basis of the diet is hay, at least 1.5–2 kg per 100 kg of horse weight per day. For a 500 kg horse, that's 7.5–10 kg of hay. In winter, it's better to stick to the upper limit: coarse fiber warms through fermentation in the gut. Add concentrates according to work: without workload — 1–2 kg of oats or muesli, with moderate work — 3–4 kg, with intense work — up to 5–6 kg, but divided into 3–4 feedings.
A couple of nuances often overlooked:
- Salt. In winter, a horse eats snow if it lacks salt, and that's a direct path to stomach problems. A salt lick should always be in the stall.
- Water in feed. Carrots, beets, soaked hay are sources of moisture, but they do not replace drinking.
- Abrupt change of diet. If you switch a horse from summer pasture to winter hay, do it over 7–10 days, otherwise the risk of colic increases many times over.
Watering in freezing weather: why a bucket of ice-cold water is a lottery
A horse drinks 30–50 liters per day, and when working and in frost — up to 60. If the water is colder than +5 °C, the horse drinks less than needed. The result is dehydration, thick blood, slowed peristalsis, and colic. This is not hypothetical: according to stable experience, winter colic is most often associated with lack of water, not overfeeding.
What to do:
- Warm the water to +10…+15 °C. Ideally — heated drinkers. If none, pour warm water from a barrel kept in a warm room and change it 3–4 times a day.
- Make sure the drinker doesn't freeze. Ice in the drinker is not just an inconvenience; it's a direct risk of dehydration.
- Don't water immediately after work. Let the horse cool down for 20–30 minutes, otherwise spasms are possible.
- Add electrolytes only as indicated (after intense exercise, sweating). Not needed just for winter.
Hooves and shoes: winter ground changes everything
In winter, hooves suffer from two things: hard frozen ground and clinging snow. A horse that walked on soft pasture in summer starts favoring its legs on a frozen road, changes gait — and that's the first sign of discomfort. If ignored, we get laminitis or cracks.
This routine works:
- Trimming every 6–8 weeks — no less often than in summer. In winter, hooves often grow slower but also wear less, so the toe grows out and starts to "drop."
- Winter shoes — an option with studs or special winter shoes, but only if the horse works on slippery ground. For turnout in the paddock, trimming is enough.
- Snow in hooves — packs in balls, especially around zero. Helps to grease the hoof horn with fat or a special ointment, and regular cleaning with a hoof pick after each outing.
If the horse starts lifting its legs, shifting frequently, or lying down more than usual — that's a reason to check the hooves and call the farrier out of schedule.
Signs of hypothermia and when to call the vet
A horse can't complain, but there are clear signals that it's cold or getting sick:
- Shivering — muscle tremors, especially in the shoulders and thighs.
- Cold ears and limbs — normally ears are cool but not icy.
- Lethargy, refusal to eat — the first sign not of hypothermia but of developing inflammation.
- Frequent shallow breathing — may be a sign of pneumonia.
- Teeth grinding, shifting, looking at the belly — classic colic.
If you see shivering and cold ears — bring the horse into a warm room, rub it down, give warm water. If it hasn't warmed up in 30–40 minutes — call the vet. Colic is always an emergency call: before the vet arrives, don't give painkillers and don't try to "walk it off."
If you're a newcomer at the stable: three paths and their cost
You can learn winter care in different ways, and each path has its price — not only in dollars.
The first path — on your own, via forums and videos. Cheap, but information is scattered and often contradictory: one says "water with cold water, the horse will get used to it," another — "only warm." You can only check who's right on your own horse, and the price of a mistake is its health. This path works if there's an experienced mentor nearby whom you can ask a specific question.
The second path — working under an experienced groom or trainer. Gives live feedback and instant answers, but you learn "how it's done at this stable," not systematically. Plus it depends on whether you get someone willing to explain, not just do.
The third path — structured learning. A course gives a framework: which parameters to track, which numbers to calculate, what to consider normal and what a deviation. The downside — no live horse in front of you; you have to transfer knowledge to practice yourself. But you get an algorithm, not a set of scattered tips. This is exactly what Horse Care and Stable Management addresses: it covers calculating feed by weight and work, winter watering, and the signs that mean you need to call the vet — with examples and feedback on your decisions.
For whom winter care is hard, and for whom it isn't
Don't think wintering is always a problem. If you have:
- a horse on free turnout with a shelter and dry bedding — it regulates its own load and often winters better than in a stall;
- the ability to arrange water heating — the risk of colic drops many times over;
- willingness to calculate feed and monitor hooves — wintering goes smoothly.
But if the horse stands in a closed barn without ventilation, the drinker freezes, and hay is given "by eye" — the risk is high. In that case, either change the conditions or at least start with the checklist and strict accounting.
- Check water in the drinker: temperature +10…+15 °C, drinker not frozen.
- Breathe the air in the barn: is there an ammonia smell?
- Check ears and limbs: are they icy?
- Assess how much hay was eaten overnight (leftover no more than 10%).
- Inspect hooves: any packed snow or cracks?
- Observe behavior: eating, drinking, moving as usual?
Winter horse care is not about heroism but about a few precise numbers and daily checks. If you do even one item on the checklist "by eye," sooner or later it will catch up with you. The course Horse Care and Stable Management gives a system with which you'll stop guessing why the horse lost weight or refuses water, and you'll be able to act ahead of the curve. You can start on the course page. You can start here: Equine Management.