History of the Yorkshire breed
Today, Yorkshires are productive, yet more performance oriented and more durable than ever. The goal of
the Yorkshire breed is to be a source of durable mother lines that can contribute to longevity and carcass
merit. The motto of "The Mother Breed And A Whole Lot More" indicated the improvement and changes that the
industry has seen.
Yorkshire breeders have led the industry in utilization of the "STAGES" genetic evaluation program.
From 1990-2006, Yorkshire breeders submitted over 440,000 growth and backfat records and over 320,000 sow
productivity records. This represents the largest source of documented performance records in the world.
The American Yorkshire Club was organized on April 1, 1893, in Minneapolis, Minnesota. The office was first
in St. Paul, Minnesota, and was moved to Valparaiso, Indiana in 1948. The first club was a stock company.
In 1948, the American Yorkshire Club was reorganized and became a membership organization.
Yorkshire Breed Markings and Registration Requirements
The presence of one or more of the following disqualifies Yorkshire pigs from registry
- Less than six teats on a side
- Any hair other than white on any part of the animal's body
- Total blindness
- Hernia or ruptures
- One testicle or any pronounced abnormal condition of the testicles
- Black spots in the skin are very objectionable and any large spots or numerous black spots located on any part of the hog makes the pig ineligible for registry
- Evidence of an extra dewclaw. However, a small amount of black pigmentation is allowed on the body of the animal.