| Collection at 0.5 dpc | Collection at 1.5 dpc | Number of GMM strains | |||
| Number of sessions | Number of females | Number of sessions | Number of females | ||
| C57BL/6J | 64 | 299 | 183 | 926 | 37 |
| B6*129 | 12 | 60 | 31 | 167 | 11 |
| FVB/NJ | 13 | 97 | 9 | 43 | 6 |