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Average numbers of pups per litter with various parental mHR6A combinations
| Parental mHR6A genotypes | No. of successful matings | Litter size (mean no. of pups ± SD) |
|---|---|---|
| +/+ × +/Y | NDa | |
| +/+ × −/Y | 7 | 5.9 ± 2.6 |
| +/− × +/Y | 35 | 8.7 ± 2.6 |
| +/− × −/Y | 79 | 8.6 ± 2.7 |
| −/− × +/Y | 11 | 0 |
| −/− × −/Y | 13 | 0 |
ND, not determined.
