The pig shown is a Mangalitza or Woolly Pig found in Austria, Germany, Hungary, Romania and Switzerland.

The Meishan breed was introduced into the United States under a cooperative effort of the USDA, the University of Illinois, and Iowa State University. This effort also imported Fengjing and Minzhu pigs from China. A total of 144 pigs from these breeds were shipped to the United States. Iowa State University received 22 Meishan females and 10 Meishan boars from this shipment on July 27, 1989.

The Middle White was first recognised as a breed in 1852 in most unusual circumstances. At the Keighley Agricultural Show in West Yorkshire, Joseph Tuley, a weaver by trade, exhibited several of his famous Large White sows along with other pigs.

The Minzhu breed was introduced into the United Sates through a joint effort of the USDA, the University of Illinois, and Iowa State University. This effort was also successful in introducing Meishan and Fengjing pigs from China. This effort introduced a total of 144 pigs from these breeds into the United States. Iowa State University received 7 Minzhu males from this shipment on July 27, 1989.

Mong Cai is one of the major local breeds in northern part of Vietnam, particularly in provinces of North Mountain, the Red River delta and the northern part of Central Coastline. It has small to medium body size.

Mukota pigs are believed to have been introduced by the European and Chinese traders between 16 and 1700 AD. There are basically two classes of Mukota pigs.

The Mora Romagnola is an indigenous pig breed of the Ravenna province (Emilia Romagna, Italy); and it is unknown if it was ever exported to other parts of Europe. There are now only 18 animals surviving in one herd near Faenza (Ravenna) , while in 1949 there had been more than 22.000.

Also Known By: Estrela, Estrelense, Mouro and Pereira

The most distinctive feature of the American Mulefoot hog is the solid hoof which resembles that of a mule. Pigs with solid hooves (also called syndactylism) have attracted the interest of many writers over the centuries, including Aristotle and Darwin. Yet of all the mulefooted hogs described, the American Mulefoot is the only documented population with a breed standard and a long history of agricultural use. This breed is unique to the United States and is critically rare. Recent events, however, have led to more optimism regarding its survival.