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Monozygotic incomplete caudal duplication in a German Holstein calf
  1. M. Freick1,
  2. H. Behn2,
  3. M. Hardt2,
  4. S. Knobloch3,
  5. B. Eftekharzadeh4,
  6. E. Schütz5 and
  7. B. Brenig5
  1. 1Veterinary Practice Zettlitz, Straße der Jugend 68, Zettlitz 09306, Germany
  2. 2Landesuntersuchungsanstalt für das Gesundheits-und Veterinärwesen Sachsen, Bahnhofstraße 58-60, Leipzig 04158, Germany
  3. 3Veterinary Practice Hausdorf, Zollwitzer Ring 1, Colditz 04680, Germany
  4. 4Laboratory of Molecular Biophysics, Chemistry and Molecular Pharmacology Program, Institute for Research in Biomedicine, Baldiri Reixac 10, Barcelona 08028, Spain
  5. 5Institute of Veterinary Medicine, Burckhardtweg 2, Göttingen 37077, Germany
  1. Correspondence to Dr M. Freick, mfreick{at} or Prof Dr B. Brenig, bbrenig{at}


Congenital duplications are rare entities in cattle. This report deals with an incomplete caudal duplication case of a dairy calf, which exhibited a supernumerary limb attached to the pelvic region, a polydactyly, a bifid scrotum containing one testis each, a diphallus, an atresia ani and a recto-vesical fistula. Genotyping of the tissues of the calf and the pygomelus using the bovine SNP50 v2 BeadChip demonstrated that the origin of this malformation was from one zygote.

  • calf
  • malformation
  • pygomelus
  • duplication
  • monozygotic
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