YucatanTM Miniature Swine


  • Domesticated miniature swine.
  • Sinclair acquired two colonies of Yucatan, one from Biotech Inc. and one from Charles River Laboratories (CRL).


  • Both Yucatan colonies produced by Sinclair have the same origin.
  • 25 animals imported into the United States in 1960.
  • Developed at Colorado State University with funding from the Kroc Foundation.
  • Sinclair assumed production of the Biotech colony in 1995 and the CRL colony in 2002.
  • The Biotech colony is in Auxvasse, MO and the CRL colony is in Windham, ME (originally CRL).
  • The colonies are closed and fully pedigreed.


  • Purpose-bred, socialized, and vaccinated.
  • Darkly pigmented skin with little or no hair.
  • White hairless line for dermal studies.
  • Ventricular Septal Defect (VSD) line also available.
  • DNA samples from the Biotech colony are banked and available for documentation and/or genetic studies.
  • The Biotech colony is MHC haplotyped defined for transplantation studies (MHC genes of these lines have been cloned and sequenced for the SLA class I and class II and the characterizations of allele-specific monoclonal antibodies).
  • Free from common domestic swine diseases; e.g. leptospirosis, brucellosis, pseudorabies, transmissible gastroenteritis, porcine reproductive respiratory syndrome, toxoplasmosis, etc.
  • The Yucatan are particularly known for their docile temperament and ease of handling.

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