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Updated: Jul 27, 2026

Minimally Invasive Embryo Transfer and Embryo Vitrification at the Optimal Embryo Stage in Rabbit Model
Published on: May 16, 2019
From sperm to embryos; lessons learnt from Tim Rowson's career
R H F Hunter1, F López-Gatius2
1Sidney Sussex College, University of Cambridge, Cambridge, CB2 3HU, UK; 3 Pleasants Steading, Oxnam, Jedburgh TD8 6QZ, Scotland, UK.
Abstract:
L.E.A.Rowson (1914-1989) raised horizons in farm animal research and the impact of his reproductive contributions remains of major importance worldwide. First, his studies with E.J.C. Polge on the successful deep - freezing and thawing of bull spermatozoa enabled artificial insemination to be applied on an international scale. Second, his development of non-surgical embryo transfer techniques in cattle gave a major boost to the breeding industry, facilitated by deep -frozen storage of embryos during international transport. He also guided many research students whose work in cattle, sheep and horses has become prominent during the past 60 years.
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