The answer for a goat bred under a hotter sun
A Boer goat in very cold winter weather needs a dry shelter with a solid back to the wind, bedding he can nest into, and a hay rack that is never empty overnight. Developed in South Africa, the Boer carries a short, sleek coat — often white over the body with that familiar red-brown head — with far less undercoat than a fibre breed grows for winter. A healthy adult Boer in good flesh handles cold respectably when he is dry and fed; a wet, windswept, or thin Boer loses heat faster than owners raised on hardier goats expect.
Rumen heat: why hay is his central heating
A Boer goat warms himself from the inside out, because the microbes fermenting forage in his rumen produce heat continuously while he has hay to work on. That makes the timing of winter feeding different for this goat: a rack filled at dusk keeps his internal furnace running through the coldest hours, while a Boer who finishes his hay by early evening cools steadily until morning. Give him the bulk of his forage as good hay rather than rich concentrates, keep it under cover so he is not choosing between eating and standing in sleet, and watch that dominant pen-mates are not holding the sheltered rack while a quieter Boer eats snow-dusted hay in the open. Shivering that stops once he is inside and eating is a goat coping; shivering that continues in shelter is a goat who needs more help and a call to your veterinarian if he is also dull or off his feed.
Shelter, bedding, and the wet-cold trap
Build this Boer goat's winter shelter with three solid sides, a roof that sheds meltwater away from the entrance, and an opening facing away from the prevailing storm direction, because Boer goats tolerate dry cold far better than the wet, windy kind that soaks a short coat to the skin. Bed it deeply with straw and refresh the top layer before it packs into a damp mat, and make sure the whole herd can lie inside at once — a Boer ranked low and left standing in the yard overnight is the animal winter actually takes. Check his distinctive long ears for pale, stiff tips after the hardest nights, and bring any Boer who is found wet through, isolated, and uninterested in hay into a dry pen for a closer look.
Kids, older goats, and condition through winter
Boer kids born into cold weather and elderly Boers with worn teeth are the two groups who need extra from you: kids chill quickly at their small size and need a dry, draught-free corner their mothers can share without crushing them, while an old Boer may stand at the hay rack without actually eating enough coarse forage. Handle every Boer goat fortnightly through winter, feeling along the spine and ribs under that short coat. Keep water liquid — a Boer who will not break ice himself drinks too little, eats less hay, and so produces less of his own rumen heat, a quiet spiral worth interrupting at the first frozen morning.
Storm damage and a goat outside the fence
Winter storms drop branches on fences and drift snow against gates, and a Boer goat who finds the gap will follow his herd-mates through it into weather he is poorly coated to survive. Walk the fence line after every storm before turning the herd out, and keep a note of this Boer's ear tag and markings where you can reach it in the dark. If he does get out in a freeze, KinsLe's Lost Pet Alert System can alert nearby members quickly, so the neighbour who finds him sheltering in their barn can message you directly.