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

Origin
• 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 Columbia, MO and the CRL colony is in Windham, ME.
• The colonies are closed and fully pedigreed.

Characteristics
• Purpose-bred, socialized and vaccinated.
• Darkly pigmented skin with little or no hair.
• White hairless line for dermal studies.
• 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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