Cultivation to the state of blastocyst

By using the special solutions it is possible to extend the time of cultivation of embryos for up to 5 or 6 days (state of a blastoyst). The benefit of this procedure is the option to choose the best quality embryos for transfer and increase the chances for pregnancy. Use of the long cultivation is suitable especially when the number of mature eggs is sufficient (6 and more). Determination of an optimum date for ET is very individual and can be different in repeated cycles.