Table 1.
Overview of duck populations used in this study.
| Population | Geographic Origin | Classification | Number |
|---|---|---|---|
| Spot-billed duck (SB) | Ningxia, China | Spotty plumage | 7 |
| Mallard (MD) | Zhejiang, China | Spotty plumage | 8 |
| Peking duck (PK) | Beijing, China | White plumage | 8 |
| Maple Leaf duck (FY) | Beijing, China | White plumage | 8 |
| Cherry Valley duck (CV) | Beijing, China | White plumage | 8 |
| Wendeng black duck (WD) | Shandong, China | Black plumage | 8 |
| Putian black duck (PT) | Fujian, China | Black plumage | 8 |
| Gaoyou duck (GY) | Jiangsu, China | Spotty plumage | 8 |
| Jinding duck (JD) | Fujian, China | Spotty plumage | 8 |
| Mei duck (MEI) | Anhui, China | Spotty plumage | 9 |
| Shanma duck (SM) | Fujian, China | Spotty plumage | 8 |
| Shaoxing duck (SX) | Jiangsu, China | Spotty plumage | 8 |
| Total | 96 |