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Related Experiment Videos

Diprosopiasis in a lamb. A case report.

G Mazzullo1, A Germanà, G De Vico

  • 1Department of Morphology, Biochemistry, Physiology and Animal Production, Section of Morphology, University of Messina, Messina, Italy.

Anatomia, Histologia, Embryologia
|May 8, 2003
PubMed
Summary

A rare case of conjoined twinning in sheep resulted in a two-headed lamb with craniofacial defects. This condition, known as diprosopus tetraophtalmus, highlights the vulnerability of sheep to such congenital anomalies.

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Area of Science:

  • Veterinary Pathology
  • Animal Reproduction
  • Teratology

Background:

  • Conjoined twinning occurs across domestic animal species.
  • Sheep exhibit a high prevalence of craniofacial defects in congenital anomalies.
  • Understanding the etiology of these defects is crucial for animal health.

Observation:

  • A live male crossbreed lamb with two heads (diprosopus tetraophtalmus) was born to a 2-year-old Pinzerita sheep.
  • The lamb survived for 40 hours post-birth before expiring naturally.
  • Gross examination revealed significant abnormalities primarily affecting the head.

Findings:

  • Histomorphological examination of various organs and tissues showed no significant changes.
  • The specimen was definitively classified as conjoined twinning.

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  • The specific facial duplication was identified as diprosopus tetraophtalmus.

    • Implications:

    • This case contributes to the understanding of conjoined twinning in sheep.
    • Further research may elucidate genetic or environmental factors contributing to craniofacial defects in ovine species.
    • Such anomalies underscore the importance of monitoring and studying congenital defects in livestock for breeding and health management.