Colic on pasture??

My girl coliced badly yesterday. (We ended up losing her after the vet worked on her for several hours). I had never heard of a strictly pasture horse colicing. They are on pasture grass, not on brome, which could be expected. Is colicing on pasture a freak occurance, or had I just somehow missed it?

I'm sorry for your loss.
A horse can colic from any number of things, pasture would be last on the list especially if she was used to it.

Sorry for your loss.
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Thanks. It was a rough night, and today hasn't been much better. She was my baby. And she had been on that same pasture since January, I'm really at a loss. Vet said the change in the weather (it turned off cold this week) could have done it, but that sounded strange to me. I guess that's why I'm not the vet though...

There are so many different causes for colic.

Toxins/poisons
Ingestion of sand/dirt (build-up)
Bolus of hair or other foreign material
Stress due to weather, herd situations, lifestyle, etc.
Cancer
Genetic predisposition

Sorry for your loss.

Living in CO, we frequently see colics that are weather related. It usually has to do with huge pressure variants not just simple weather changes. It tends to be more of the garden variety crampy, discomfort that resolves itself rather easily. There was probably another underlying problem with your mare and we just often push all the GI discomfort incidents into the colic category instead of investigating it farther and revealing what was actually ailing the horse.

All my horses are on grass pasture. I live in florida and during the late fall the temperature changes dramatically during the day and night.And when it does that I have seen that they are less likely to drink water. Not sure why they just don't. So it could have been that she didnt wanna drink cause it was cold. And that started the whole ordeal. Not sure. As the others have said theres a million reasons why it couldve happened. Im sorry for your loss.

pancreatitis, enteritis,aneurysms

The 2 biggest things everyone missed is water intake and parasites. I would suspect that your pastured horse died of an 'impaction colic'. The partially digested grass in her gut was too dry to go through her digestive system and she impacted. This is very common when there are big temperature changes.

When it has been hot for a long time, horses will suddenly drink a lot less when it turns cold.

When it has been cool or mild and it suddenly gets very hot, horses will not drink enough extra water to compensate for the sweating and stress of the very hot weather.

We add salt to the diet of every horse when there is a drastic temperature change in store -- up or down. When it is very hot -- like the sixty three 100+ temperature days we had this year, we add salt to the horse's feed every day. It broke every record in Oklahoma this year and a lot of horses died of impactions. Heck, it was 108 one day last week.

No way to know for sure. Could just as easily been a gas colic that torqued. Speculating does not help the OP.

I am very sorry for your loss.