Current developments in embryo transfer

Abstract

Summary The present state of knowledge about embryo transfer and the techniques used in recovering, manipulating and sexing embryos are discussed. Speculation is made about possible future developments, including gene injection and application of recombinant DNA technology. It is concluded that such studies will open up new developments in animal breeding. The end result, however, will still depend on an embryo being transferred to a recipient to carry the pregnancy to term.

The application of embryo transfer to polo ponies in Argentina

“…When an embryo was detected it was washed and transferred to a small Petri dish containing modified Dulbecco's medium (Ovum Culture Medium; Cytosystems, Sydney, Australia). The flushing system was that described previously by Pashen (1985) using a 24 French gauge catheter (equine egg collection catheter; Rusch, High Wycombe, Bucks, UK) with the inlet port connected to the medium bag and the outlet port connected by Silastic tubing to an embryo filter (EmCon, Spring Valley, USA).…”