Hi,I'm Dr Steve. Congratulations on your upcoming delivery.
Unfortunately it is very difficult to predict the delivery date of a mare when she is this close to foaling. Each mare will develop her udder at a different rate. I get this question fairly commonly from my equine patients and I give them the same general answer.
When you see signs of the upcoming foaling, like milk veins and then udder development and loosening and swelling of the vulva, these all tell you that of course she is bred and it is coming closer, so I tell them to check on the mare a little more frequently like at least daily until the udder begins to become full and then even twice a day if any milk begins to drip out.
I also tell them not to check the udder to see if there is milk because this opens the teat canal and can cause leaking of colostrum which is vital to the foal's health andit can also increase the risk of mastitis if bacteria getup into the teat canal. /
The "normal " gestation length for a mare is 330 days, but it is not uncommon to go to 350-360 days and I have seen a few go 370, so in this situation, patience is the key and once you see her udder actually filling and swelling, then you are getting closer. I wish I could give you a better "guess" as to how long she has left, but any guess would likely be incorrect, so watch for the other signs I mentioned and just be ready when it happens.
I hope this has helped. This question will remain accessible even after you have rated my answer in case you have more questions. Thanks for your question and good luck,
You can also let me know when she does have the baby as well if you like
Thanks got too many people around me with talk of still born because she has not delivered. Had me concerned, but nothing indicated their "diagnosis" other than old cowboy tales.
still has not delivered.
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