La réussite en transfert d'embryons bovins


Le sexage des embryons


  Embryo sexing on the farm

  • The relatively new technique ei called PCR. This technique allows us to generate thousands to millions of copies of a particular DNA sequence from chromosomes X et Y.

  • The second operation, which is electrophoresis, is able to separate the fragments of X and Y. They form two distinct and individualised strips, visible under UV lightings.

  • A biopsy that shows a single strip X identifies then a female embryo while the presence of two strips (both X and Y) identifies a male embryon.

  • The majority of females are transferred on the same day to heifer recipients.


DNA amplification



Revelation au reading of the embryo sex


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