Our very own Dr. Scarrow participated in Randolph-Henry Career Day yesterday. Sharing his knowledge and experience to inspire the next generation of veterinarians.
Let's talk about twins.
When we breed mares, there are many factors that can interfere with the pregnancy. Since the foals are so large, almost all mares cannot carry twins to term. Even if they do carry the twins to term, both are usually very small and one is often more handicapped than the other and usually one or both do not survive. These are often recognized as late term abortions when the size of the foals means that neither are getting the nutition that they require.
We try to avoid this situation using the ultrasound machine to detect two embryos within the 30 days following breeding. If there are two, an attempt is made to disrupt one embryo so that only one remains- this is a very successful procedure. It is possible to miss these twin fertilized embryo, especially in early evaluations. It is thought this is due to one embryo overlying the other.
After foaling, we like to visit the mare and foal in the first day. We can evaluate a blood sample from the foal to ensure that they have eaten and absorbed the antibody in the clostrum which is there only means of ammunity until they are 3-5 months of age. Secondly, we evaluate the mare and foal to ensure that both are healthy after birth. Then, we evaluate the after birth or placenta to be sure that not even a small fragment of the placenta is left in the mares uterus. This can lead to severe illness and even death in the mare.
This case involves a mare which we examined in the last month of pregnancy. The foal was thought to be smaller than expected for the gestational length but there were no other abnormal signs. The mare foaled near her expected foaling date without problems. The foal appeared to be somewhat smaller than expected but was healthy and vigorous. When the placenta was examined, it was noted there was a book sized mass in one part of the placenta that was quite firm on palpation. The rest of the placenta appeared normal. When the area of where the mass was, was opened, inside w
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