When the temperature drops, a lot of owners instinctively reach for more grain. But the science points the other way: it’s forage, not grain, that keeps a horse warm from the inside. Here’s how to feed through winter without losing condition — or causing a cold-weather colic.
Digesting fiber generates heat. The fermentation of forage in the hindgut is, in effect, a built-in heater that runs for hours. That’s why the single best response to a cold snap is more hay, not more concentrate. Free-choice or extra hay overnight does more to keep a horse warm than any blanket.
Cold-weather colic is very often a water problem. Horses drink less when water is icy, and less water plus dry winter hay is a recipe for impaction. Use tank heaters or heated buckets, check them daily, and know that many horses prefer water that isn’t ice-cold. A little loose salt in the diet encourages drinking too.
A fluffy winter coat or a blanket can hide a horse quietly dropping weight. Put your hands on the horse regularly — feel the ribs and topline — rather than trusting the look. It’s far easier to maintain condition than to rebuild it in February.
Usually no — feed more hay. Digesting forage produces body heat; grain doesn’t do the same job. Increase concentrates only if a horse is genuinely losing condition despite ample forage.
Mostly because horses drink less when water is cold, and dry hay plus low water intake leads to impaction. Keeping water unfrozen and palatable is the best prevention.
It depends on coat, shelter, age and condition. Many healthy horses do fine unblanketed with shelter and extra hay. If you do blanket, check underneath regularly for weight loss.
Tank heaters or heated buckets, checked daily. Some horses drink more if the water is slightly warmed. Pair with free-choice salt to encourage intake.
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