Animal
American Mulefoot hog
Sus scrofa domesticus (Mulefoot breed)
Also known as: Mulefoot pig, Ozark hog
A Critical-status American heritage swine breed distinguished by an unusual anatomical feature: an unsplit ('mule-like') hoof rather than the standard cloven hoof of all other domestic pigs. Black coat, medium-large size (mature 400–600 lbs), traditionally raised on Mississippi River bottomlands and the Ozarks for ham and lard production through the 19th and early 20th century. The unsplit hoof was historically believed to confer resistance to swine cholera and other diseases — a folk-veterinary view that gave the breed economic premium during the foot-rot and disease-pressure periods of 19th-century pork production. Breed nearly went extinct by the 1980s; recovery led by R.M. Holliday of Louisiana, Missouri, who maintained one of the last working herds. Approximately 200–400 breeding registrations annually as of 2026.
Cultural / Scientific
The American Mulefoot hog is one of the few mammalian breeds in the world to consistently exhibit syndactyly — the fusion of the cloven-hoof structure into a single, unsplit, mule-like hoof. This distinctive anatomical trait gave the breed its common name and historically its economic premium: 19th-century farmers and folk veterinarians believed the unsplit hoof conferred resistance to foot rot, swine cholera, and other 19th-century pork-production diseases. The genetic basis for the syndactyly trait has been studied; it is a single dominant allele.
The breed was raised primarily on [[batesville-ms|Mississippi]] River bottomland and Ozark hill-country farms through the 19th and early 20th centuries. Mature pigs are 400–600 lbs, with the breed’s traditional value in ham and lard production. The breed declined sharply through the mid-20th century as commercial swine production consolidated around faster-growing leaner breeds; by the 1980s only a handful of working Mulefoot herds remained.
R.M. Holliday of Louisiana, Missouri, maintained one of the last working herds and was the principal source of genetic material for the modern [[rest|recovery]] effort. The American Mulefoot Hog Association maintains the modern breed registry; [[livestock-conservancy|The Livestock Conservancy]] classifies the breed as Critical, with approximately 200–400 breeding registrations annually.
The breed produces exceptional traditional ham — slow-cured Mulefoot prosciutto-style hams have entered the U.S. heritage-charcuterie market alongside Ossabaw and Iberian-cross products.
See also
Auto-generated from this entry’s typed relations: frontmatter, grouped by relation type so the editorial signal isn’t flattened.
- Shares approach with: [[livestock-conservancy]] · [[ossabaw-island-hog]]
- Member of: [[animal]]
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