author(s)
Kennady Vijayalakshmy, J Manimegalai, Ranjeet Verma and Vikas chaudhiry

abstract
Early embryos of superior genotype are collected prior to their implantation in uterus, and they are implanted in the uterus of other females of inferior genotype where they complete its actual development which is referred to as embryo transfer. The chief objective of embryo transfer is to achieve greater rate of conception, increase in number of progeny per year from single female animal of superior genotype. Embryo transfer technique helps in increasing commercial production and it can also improve the genetic potential of livestock. The embryo transfer technique provides a rapid rate of improvement of the genetic quality of offspring at relatively lower cost than purchasing a live animal. The present review depicts the basic principles, applications and the different steps in the procedure of embryo transfer in animals.