Miniature pig

[1]: 238 [2]: 714  Many others have been selectively bred since the mid-twentieth century specifically for laboratory use in biomedical research; among these are the Clawn and the Ohmini of Japan, the Czech Minipig, the German Göttingen Minipig, the Lao-Sung of Taiwan, the Russian Minisib, the extinct Minnesota Miniature of the United States and the Westran of Australia.

[2]: 652 Miniature pigs generally reach their full size in about four years, and may live for up to fifteen.

[9] Beginning in the late 1960s at the Institute of Animal Breeding and Genetics (Institut für Tierzucht und Haustiergenetik) at the University of Göttingen, Germany, the Göttingen minipig was developed by crossbreeding the Minnesota minipig, the Vietnamese Pot-Bellied pig and the German Landrace pig.

Miniature pigs have been used for medical research, including toxicology, pharmacology, experimental surgery, pulmonology, cardiology, xenotransplantation, orthopedic procedures[15] and aging studies.

They are also quick to develop, making it easier to breed and have more genomic background compared to other animal models of toxicology.