* Can be transferred at the correct stage of the recipient's [[Female_Reproductive_Tract_-Oestrous_Cycle_-_Anatomy_%26_Physiology|oestrous cycle]].
* Can be transferred at the correct stage of the recipient's [[Female_Reproductive_Tract_-Oestrous_Cycle_-_Anatomy_%26_Physiology|oestrous cycle]].
−
* Embryos transferred around the [[Fertilisation%2C_Implantation_and_Early_Embryonic_Development_-Embryonic_Development_of_the_Blastocyst-_Anatomy_%26_Physiology|blastocyst]] stage.
+
* Embryos transferred around the [[Blastocyst Embryonic Development - Anatomy & Physiology|blastocyst]] stage.
* Success rates are improving.
* Success rates are improving.
* Embryos can be frozen, eliminating the need for tight synchronisation. This allows them to be shipped to other locations.
* Embryos can be frozen, eliminating the need for tight synchronisation. This allows them to be shipped to other locations.