I have a mare that was suppose to foal and still hasn't and I have a pieace of land that is by a man and his wife. They don't like my horses being there but, my horses were there a long time before the people moved into the house. They have been feeding my horses chemicaly treated grass and I didn't know until a week ago and I told them to stop and they have so far but, I have a mare that is preg.. She has been eating this grass. My question is could this have made her loose the foal? Please help! Anything would be of help!
I'm sure it depends on what it was treated with. If it was just 2-4-D put on the recommended rate, I wouldn't worry. That is what it put on pastures to keep the weeds out. That is the same stuff that "weed-B-gone" is too. If it was fertilized with nitrogen heavey and the grass was stressed by draught there might be a problem. If you are still worried take a sample of it to your vet, extension agent or local co-op, they will run a RFV test to see what the grass has in it as far as nitrates to protein.
What do you mean by "supposed to foal"? Note that there is no such thing as a "due date" in the equine! Follow that link for more information on the subject.
Potential pregnancy loss would depend entirely on what the chemical was that was used. If you have doubts about your mare's pregnancy status, you shold have her checked by a veterinarian - and don't forget that there are a multitude of reasons why she may lose a foal, so if she is not pregnant, do not automatically assume that it is associated with the treated grass.
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