put a blanket on 'em. gosh.
to keep them warmer than their own fur can
Fluffing a horse is when the horse fluffs out their hair. This is done in the winter time and it traps a layer of air in the coat to provide insulation to keep them warmer.
stay inside and feathers keep them even warmer
You can insulate your home to keep it warmer in winter and colder in summer.
Thick walls and small windows keep the house cooler in summer and warmer in winter.
Because wool clothes are heavier, thus making them warmer.
Yes. It is recommended to brush horses every day in the winter to keep debri out of the coat.
The primary source of heat generation from feed is roughage (hay, grass etc.)
During the winter, owners should feed their horses just a little bit extra food so a thin layer of fat is formed under the skin. This helps keep them warm. Also owners can use a rug to help keep their horse warm however some horses have extremely thick coats so they would only need a light outdoor rug to keep them warm.
They have a thick coat in winter for keeping itself warm but in Spring and Summer it sheds its fur for adjusting to the warmer season.
Thick walls help keep the house cooler in summer and warmer in winter.
A blanket? This varies, depending on preference. I use a waterproof 'rain rug' for my horses during the wet season. During winter, or whenever I clip my horses, I use a winter rug to keep them warm. It's particularly for elderly horses or those with fine coats, but it's good to rug every winter.