https://www.livestockoftheworld.com/uploads/206660Pietrain.jpg
Pietrain Pigs are from Pietrain, France - a small village of the Walloon
municipality of Jodoigne. They became popular in the 1950s during the difficult
period of the swine market in 1950-51. Pietrain swine were imported into
Germany in 1960-61. The main breeding areas in that country are
Schleswig-Holstein, Nordrhein-Westfalen, and Baden-Wurttemberg. They are
commonly used in crossbreeding in Germany to improve the quality of pork
produced.
The breed was improved by researchers at the Universite de Liege in
2004.