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yesterday when i went to feed my horse his flanks were quivering like he was shaking like he was cold. it was rainy and it was about 48 degrees. i gave him grain and some hay to make sure he was not cold. I did rode him friday but not as hard i did my usual i warm him up like always and cool him after. after i gave him his grain and some hay and i waited til he got a drink of water. what is this a muscle spasm, like a charlie horse that we get or is it something else?
My horse did this in early spring and it was also raining and it was about -9celcius(I suck at farenheight) At first I was kinda worried cause never saw a shake like this, she seemed kinda spooked though, so we came and had a look in the morning so we had better light to look around. We found signs of a bear that had been very close to the barn and my husband said he was sure there was probably a cub with it. So if your horse seemed spooked at all look around. We had a grizzly break through a barn window to get to the animals inside, scary .
It is hard to tell what it was. Have a look around and make sure nothing looks wrong or out of place. I would also keep an eye on your horse, if he does it again talk to your vet.
If it was raining and 48, she was probably cold.
The wet makes them have to work harder to keep warm, especially if it's consistant and not just a drizzle, as it soaks to the skin.
My mom's horse will shake in the back end, while my horse shakes in the front when they're cold.
Giving them more hay will help. Grain not so much.