This is our first year to have any abortions and we have been hit hard. One of the foals that aborted in Feb was taken for autopsy. No rhino or lepto was found and no abnormalities. The other mare aborted in Dec. Experienced broodmare with no history of problems or abortions. Last week our maiden mare aborted. When the vet came back to re examine her he did notice her thyroid is swollen. Could this cause an abortion???
Any # of things can cause an abortion - the fact that you have had 3 in one year would make me start looking for an outside cause - we lost 4 one year due to a neighboring farmer spraying the bordering fence rows with herbicide. DUe to excessive rain, it washed into the pasture. You might also look at feed/hay/pasture - could be a weed, could be something in the feed (as in feed mill screwed up, mixed cattle feed or something into the horse feed), maybe something bad in the hay like blister beetles? Her thyroid being swollen could mean too that your pasture/feed is missing something (then again, could be unrelated)Have to make like CSI and do some real deep investigating.
thanks pat! we have done tons of investigating and autopsies on the foals but cant find anything. My broodmares are fed on a drylot and never let in the pasutre due to fescue. I was told yesterday by another horseperson that if its rhino and the autopsies werent done within one hour of abortion the rhino wont show up. I wonder if thats true?? I really thought it was rhino until the tests came back negative.
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