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The Mare: A Pertinent Model for Human Assisted Reproductive Technologies?

Abstract : Although there are large differences between horses and humans for reproductive anatomy, follicular dynamics, mono-ovulation, and embryo development kinetics until the blastocyst stage are similar. In contrast to humans, however, horses are seasonal animals and do not have a menstrual cycle. Moreover, horse implantation takes place 30 days later than in humans. In terms of artificial reproduction techniques (ART), oocytes are generally matured in vitro in horses because ovarian stimulation remains inefficient. This allows the collection of oocytes without hormonal treatments. In humans, in vivo matured oocytes are collected after ovarian stimulation. Subsequently, only intra-cytoplasmic sperm injection (ICSI) is performed in horses to produce embryos, whereas both in vitro fertilization and ICSI are applied in humans. Embryos are transferred only as blastocysts in horses. In contrast, four cells to blastocyst stage embryos are transferred in humans. Embryo and oocyte cryopreservation has been mastered in humans, but not completely in horses. Finally, both species share infertility concerns due to ageing and obesity. Thus, reciprocal knowledge could be gained through the comparative study of ART and infertility treatments both in woman and mare, even though the horse could not be used as a single model for human ART.
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Contributor : Emilie DERISOUD Connect in order to contact the contributor
Submitted on : Wednesday, August 4, 2021 - 3:55:15 PM
Last modification on : Friday, October 14, 2022 - 9:05:45 AM
Long-term archiving on: : Friday, November 5, 2021 - 6:43:46 PM


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Achraf Benammar, Emilie Derisoud, François Vialard, Eric Palmer, Jean Marc Ayoubi, et al.. The Mare: A Pertinent Model for Human Assisted Reproductive Technologies?. Animals, 2021, ⟨10.3390/ani11082304⟩. ⟨hal-03313758⟩



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