any ideas on what can cause a supposedly not pregnant mare to start a bag? i know that cushings and mastitis can cause this, but what else? the mare is in no discomfort, doesnt mind being touched and isnt red or anything...it is POSSIBLE that she is pregnant but its very unlikely because she had a culture/cytology in december... wouldnt that have aborted any pregnancy she may have had??
Various hormonal cascades can result in lactation, as well as obesity.
You are correct in that having a uterine swab performed would be likely to have terminated any pregnancy, although it would not be an absolute, and there have been instances where pregnant mares have been swabbed and then gone on to abort following placentitis, or rarely achieved a full term foal. The first rule of performing a uterine swab procedure is "check for pregnancy before doing it"!!!
i think i may just have to get a vet out here to double check her since there is a SLIGHT possibility! i would actually rather her not be pregnant because she would be bred from before i got her and i have no idea what stud she could have been exposed to!
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