Embryo transfer (ET) is a reproductive technology that involves the transfer of a fertilized embryo from one female to another. The technique is used in both animal and human reproduction, and has been around since the 1980s. In recent years, ET has become a popular method of assisted reproductive technology for those who have difficulty conceiving on their own.
In animal reproduction, ET is used to improve the genetic quality of offspring, as well as to increase the number of offspring produced from one animal. This is done by transferring embryos from one animal to another, ensuring that the receiving animal has the best possible genetic traits. In humans, ET is primarily used to aid couples who are struggling to conceive due to infertility, as well as to help those who wish to have children even when the female partner is unable to carry the pregnancy herself.
The process of ET begins with the collection of ova and sperm from the respective donors. The eggs are then fertilized in a laboratory, and the resulting embryos are transferred to the recipient’s uterus. If the procedure is successful, the embryo will implant in the uterus and the pregnancy will proceed as normal.
In the past, the success rate of ET was relatively low, with most pregnancies ending in either miscarriage or unsuccessful implantation. However, recent advances in reproductive technology have significantly improved the success rate of ET. In addition, the use of donor sperm and donor eggs have made it possible to achieve successful pregnancies even when the male partner is infertile.
Overall, ET is a safe and effective reproductive technology that can be used to help those who are struggling to conceive on their own. It has become an increasingly popular option for those who are unable to conceive naturally, and is likely to continue to be a viable option for many years to come.
References
Babington, C. (2018). Embryo transfer in human assisted reproduction. In IVF: Maternal and Fetal Risks (pp. 37-44). Springer, Cham.
Bazer, F. W., & Song, G. (2017). In vitro embryo production and transfer in farm animals. Theriogenology, 93, 305-319.
Hassan, A. H., Abdel Ghaffar, A. H., & Abdel-Meguid, T. A. (2016). The past, present and future of assisted reproductive technology in developing countries. Human Fertility, 19(3), 173-180.
Kovac, S. (2017). Assisted reproductive technology: an overview. Reproductive Biology and Endocrinology, 15(1), 81.