Chimaerism in Sheep

  • E. M. Tucker


Freemartins in sheep have only been reported sporadically and evidence of vascular anastomosis during foetal life in sheep has been based upon one or several of the following criteria:
  1. (a)

    Male sexual characteristics in the female member of unlike sexed twins. This intersex is known as a freemartin.

  2. (b)

    Direct examination of placentae for vascular anastomosis.

  3. (c)

    Acceptance of reciprocal skin grafts.

  4. (d)

    Red cell mosaicism.



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Copyright information

© Springer Science+Business Media Dordrecht 1965

Authors and Affiliations

  • E. M. Tucker
    • 1
  1. 1.Agriculture Research CouncilInstitute of Animal PhysiologyBabraham, CambridgeUK

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