We live in a state where it's cold now and the horses are blanketed. they go out every day for 8-10 hours, except when it's really, really bad weather. there are a couple of horses (TBs) who are shedding already...alot. these horses, like i said, are blanketed with heavy winter blankets. is this normal?
They primarily shed based on 2 factors - the amount of daylight and the temperature. The temperature shedding seems to be 1-2 days after they feel warm, so they may be shedding heavily on a cool day just after a warm spell.
Of course it's normal! It's March! Lots of daylight now - and that is what triggers shedding, not the temperature. But, like everything, it varies. My TB is shedding like a maniac; my mini as well. My paint mare isn't shedding much yet. I am not sure why...but it will happen, and soon!
One reason I hate blanketing is because the blankets get covered with hair! But if they need one, they will get one...because it's not very warm yet.
It also seems like the lighter colored coats seem to shed out first (or the white markings go before the rest). There's a varnish appy at the barn that completely defuzzes before everyone else. I'd swear his hair is in just about every local spring birds nest!
My gelding was shedding back in December...mainly because he was in a stall for most of the time and had a blanket liner on under his turnout. Now that he's out in a paddock 24/7, with just a turnout, the shedding has decreased.