Posting for a friend... Here is the brief history:
1) Mare conceived twins which were tracked via ultrasound and one pregnacy confirmed by day 30.
2) Mare seemed to get very large by day 100 (she probably looked 5-6 months pregnant).
3) Growth slowed and has appeared to mostly stall out since then.
4) Around day 200, the mare starting showing signs of discomfort, holding up her tail, excessive tail swishing, kicking at the belly, going off feed and seeming depressed and withdrawn. Some, but not all of this seemed related to a baby that was moving like gangbusters. This continued on for about two weeks. No discharge, no udder development and no temperature.
5) Things seemed to settle for the past month or so, but yesterday (day 250) she started the tail swishing, kicking the belly, holding the tail up and now was isolating herself from the other horses by going into her stall and hiding from their sight. This was also accompanied by rolling. Today she wasn't isolating herself but was swishing her tail and kicking her belly constantly. The baby was definitely moving around a lot again. This has now been going on for 24 hours. Still no discharge, udder development or temp.
6) Should also note that this mare has had 5 babies and the previous owner reported that this is not typical behavior for the mare.
Is this within the range of normal behavior or is there reason for concern? Friend has spoken to the vet and vet discussed several possbilities but is not a repro expert.
There might be a problem or no problem. Any of the above could be perfectly normal or completely abnormal behaviour. If there is any doubt (which it seems there is), a veterinarian specialising in equine reproductive work (preferably a theriogenologist) should be consulted. Hypothesizing via the internet unfortunately isn't going to tell you anything with any degree of accuracy.
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