Transplantation of mouse eggs

Abstract

THE transplantation of mammalian eggs into a host uterus is usually achieved by means of an operation on the recipient female. It would clearly be of advantage in several respects if transference could be effected without the necessity of opening the body cavity of the recipient. As described below, mouse eggs transferred directly through the cervical opening into a host uterus have come to term. This seems to be the first mammal in which a direct non-operative transplantation has succeeded. It is suggested that the procedure could be called 'inovulation', by analogy with the word insemination1. © 1951 Nature Publishing Group.