Table 1 Summary of pedigree records for all pigs
Population | Pigs, n | Founders, na | Sires, n | Dams, n | Birth month and year | Generations, n | |
|---|---|---|---|---|---|---|---|
Minimum | Maximum | ||||||
Duroc | 114,038 | 742 | 939 | 6190 | March 1982 | September 2020 | 14 |
Landrace | 236,385 | 1778 | 706 | 12,856 | January 1993 | September 2020 | 11 |
Yorkshire | 207,366 | 730 | 765 | 10,749 | June 1980 | September 2020 | 14 |
Cossbred | 690,193 | 2025 | 647 | 19,627 | March 2015 | August 2020 | 14 |