The Fengjing breed was introduced into the United States under a cooperative effort of the USDA, the University of Illinois, and Iowa State University. Meishan and Minzhu were also introduced with this program at the same time. A total of 144 pigs of these breeds were brought to the U.S. with this program. Iowa State University received 8 Fengjing males for research on July 27, 1989.

The Landrace strains of swine were first introduced into France around 1930. It was not until after World War II that extensive importations of registered stock were made. Those imported came largely from Sweden. At that time Denmark was quite restrictive of exports. Selection in France was being heavily directed for swine that suited the production environment and the market requirements of France.