Embryo transfer (ET) involves the recovery of embryos, usually from an elite female (donor) and the subsequent transfer to recipient females. The recovery of embryos includes the induction of multiple ovulations by hormonal treatment.

ET is used to disseminate desirable genes from superior female animals from various species (horses, cattle, sheep, goats and pigs).

The main advantages are:
- increase in the number of offspring per female
- easier and more rapid exchange of genetic material between countries
- less transport of live animals, thereby reducing risks of disease transmission
- storage and expansion of rare genetic stock

The main disadvantage is the high cost of the technique.