| IID1 | IID2 | Proportion of identity by descent | Kinship |
|---|
| Piglet 1 | Piglet 2 | 0.44 | Siblings |
| Piglet 1 | Sow | 0.50 | Child - mother |
| Piglet 1 | Boar 1 | 0.50 | Child – father |
| Piglet 1 | Boar 2 | 0.00 | Unrelated |
| Piglet 1 | Boar 3 | 0.00 | Unrelated |
| Piglet 2 | Sow | 0.51 | Child – mother |
| Piglet 2 | Boar 1 | 0.50 | Child – father |
| Piglet 2 | Boar 2 | 0.00 | Unrelated |
| Piglet 2 | Boar 3 | 0.00 | Unrelated |
| Sow | Boar 1 | 0.00 | Unrelated |
| Sow | Boar 2 | 0.00 | Unrelated |
| Sow | Boar 3 | 0.03 | Unrelated |
| Boar 1 | Boar 2 | 0.00 | Unrelated |
| Boar 1 | Boar 3 | 0.00 | Unrelated |
| Boar 2 | Boar 3 | 0.16 | Slightly related |
- The higher the proportion of identity by descent (IBD), the more related are two animals. Identical animals would have an IBD of 1. Close relationships, such as siblings or parent – offspring kinships have a proportion of IBD of about 0.5. As expected, the two piglets and the piglets and the mother show a high portion of IBD. The piglets and boar 1 equally show a high proportion of IBD while they are clearly unrelated to the other two boars (pairings in bold letters)
