ivf

 In Vitro Fertilization or external Fertilization refers to the completion of the Fertilization process of sperm and eggs of mammals In Vitro In a artificially controlled environment, referred to as IVF. Because it is closely related to embryo transfer technology (ET), it is also referred to as IVF-ET. In biology, an in vitro fertilized embryo transferred to a mother is called a test-tube animal. Successful in the 1950s, the technique has developed rapidly in the last 20 years and is now maturing into an important and routine animal breeding biotechnology.