MARE LOST FOAL AGAIN????????

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romanov

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friends 4yo mare has again lost her foal after the second scan.
no problems with infection/pooling, took on first go this year and last. last year she lost foal after about 16wks on and had to be washed out, this year she has lost it 4wks after 2nd scan. does anyone have any ideas??????
 
There is an article in Horse Deals I will try & type this out for you;
Stress; Transporing pregnant mare can be stressful, but should not result in EED. However long journeys should be broken
Rectal Palpation is safe when performed correctly & there is no indication that ultrasound is detrimental to the embryo
Progesterone deficiency is often suggested. On the assumption that the cL is deficient, many mares are given progesterone. A single injection of gonadotropin-reasling hormone analog buserelin (Receptal) has been shown to reduce the incidence of EED when given 10 days after ovulation
Acute endometrities. Severe fibrosis (scarring) of the uterine glands might also reduce the chances of embryonic survival. Detected pregnancy rates are on ave 33% lower in older mares.
More pregnancy failures are detected in lactating mares & numbers increase with age
Genetic & embryonic abnormalities are important. In many case, genetic factors arise from defective gametes (the egg & sperm), perhaps due to aging. This can occur when sperm are several days old before fertilization
Similarly, if mares are bred after ovulation, the oocyte (which appears to have a shorter lifespan then sperm) might have aged & be defective.
Muliple pregnancies, Double ovulations increase the likelihood of twin conception, but there is considerable breed variation. The TB has a very high rate of double ovulation.

The above was listed under Causes of early embryonic death. Not sure if it was of any help but I am sure there are other causes.
 
thanks for that magic, the only thing i can answer is that the mare was ai'd at our farm so no travelling, may direct a few questions to the vet though.
thankyou
 
I would get a blood test done when she is in foal.This could give a good indicator of her hormone levels.Some mares require regumate up until day 120 of they do not have sufficient progesterone levels.Other causes could be large uterine cysts which may impede the pregnancy but your vet should see these clearly and an abnormality with the foetus although the chances of this happening twice I would imagine to be very slim.

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