Originally Posted by BriLeigh
I have heard that if your horse is under light for 16 hours with a blanket it will help to prevent their winter coats from coming in.
It does. Horses have receptors in their eyes that tell them when the days get longer and shorter. That's how their coats know when to grow and shed. If the days are long year round, there will be no coat.
The blanket is mostly just for warmpth.
Make sure you don't keep them under lights for too long every day as they will sometimes decide that the light in the summer is shorter than the light you provide them with in the winter. This results in a winter coat in the summer.
I think I did 13 hours in winter, 16 in summer (but check me on that as I can't remember exactly
). I did it a few years with my horse when I was doing more showing during his fuzzy time.
I suggest a heat lamp on his stall connected to one of those outlet timers that allow you to set when it comes on and off. Set it to come on before it gets dark and stay on for a while after dark. Then set it to come on before sunrise. Oh, and get a big heat lamp.