As long as the frozen blastocyst is stored properly in a liquid nitrogen tank, it remains viable until the owner wishes to transfer it.
A transvaginal Aspiration is a great option for performing mares, due to the process only taking 45 minutes then the mare can go back to performing the next day.
As with all reproductive services there are risks. The TVA procedure has risks of a rectal tear and a rectal abscess.
A ICSI embryo has a 5% lower chance then a fresh embryo in producing a foal.
From The day of the TVA it can take 9-12 days for a viable embryo to develop.
Yes!
The science in the equine reproductive world is constantly growing, IVF and time lapse imaging to predict embryo viability are in near future.
