Sinclair Nanopig™


    • First miniature swine stock developed specifically for research purposes
    • Developed by Hormel Institute at the University of Minnesota in 1949 by crossing four feral breeds; a Yorkshire boar later provided white hair color to the dark pigment animals
    • A portion of the original Sinclair herd was acquired with breeding rights by the University of Missouri, Columbia in 1965; a few additions of Sinclair miniature swine were made from satellite herds in the early 1970s
    • The colony was closed, named Sinclair S-1 miniature swine, and has been maintained since 1991 by least-related breeding program
    • Sinclair Bio Resources acquired complete production and research facilities from the University of Missouri, Columbia in 1994
    • The colony is fully-pedigreed


    • Slow growth rate
    • Smallest of the produced breeds
    • A variety of hair coat colors, including white
    • One lineage develops a malignant spontaneously regressing melanoma
    • Used as animal models in multiple research areas including but not limited to cardiovascular, musculoskeletal, urogenital, oncology (melanoma), immunology, reproduction toxicology, teratology, dermatology, gastroenterology, respiration, nutrition, and pediatrics

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Book of Normals

Your Comprehensive Resources of Normal Data on Miniature Swine.