Posted on Wednesday, December 07, 2005 - 05:26 pm:
I have a wonderful 23 year old mare who had her 16th foal in August. The filly was weak but fine after a few days. The vet noted that the placenta was VERY thin with large veins, and commented that she was amazed that it had not ruptured during pregnancy.
I understand that the thin placenta is usually caused by age of the mare. Is this correct? The mare was on pasture only until the last six weeks of pregnancy when I bought her. So I am wondering how big a factor nutrition plays. She was in good condition weight-wise when I got her in mid-July.
Her mother delivered her last foal at 25 and HER mother had her last foal at 25 as well. So I would love to think I have another foa in the cards, but do not want to go to the expense of breeding her next year if the placenta is not able to sustain a healthy fetus to term.
HI, from what i have been able to read nothing indicates age is a factor in equine-couldn't find it anyways, but it is a factor in humans. I googled it last night, there is some information out there to read. Will create poor fetal development and poor reponse at birth. In humans it states that there is a high chance for deformations, and retardment.
I think with mares it's more about the uterus getting "worn out", isn't it? I know that some mares can have foals till late in life with no problems, but the ones I've seen do it haven't been bred every year.
16 foals at 23 seems like a huge task for any mare. If the foal was weak for a few days and the placenta was thin, I'd be looking at the filly as a broody of the future and letting the old girl relax!
If you want to try again, perhaps you should get a biopsy done of her uterus. This can tell you if it's in any condition to carry another foal.
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