Table 6.
Descriptive statistics of fertility traits adjusted for the main systematic effects for the interval from calving to first insemination (ICF), interval from first to last insemination (IFL) and number of inseminations (AIS), and deregressed proofs of the first lactation of milk yield (MILK), protein yield (PROT), and fat yield (FAT).
| Trait | Number of animals | Mean | SD |
|---|---|---|---|
| ICF1 | 9 453 | 0.25 | 23.89 |
| ICF2 | 5 067 | −0.13 | 24.08 |
| ICF3 | 1 509 | −0.96 | 22.51 |
| IFL0 | 12 878 | 1.65 | 37.54 |
| IFL1 | 9 546 | 3.72 | 52.48 |
| IFL2 | 5 131 | 5.14 | 51.55 |
| IFL3 | 1 567 | 6.47 | 49.12 |
| AIS0 | 13 261 | 0.07 | 0.99 |
| AIS1 | 9 323 | 0.15 | 1.13 |
| AIS2 | 4 918 | 0.22 | 1.13 |
| AIS3 | 1 453 | 0.22 | 1.08 |
| MILK | 12 233 | 270.11 | 1112.51 |
| PROT | 12 233 | 5.40 | 35.43 |
| FAT | 12 233 | 2.81 | 41.30 |
ICF, IFL and AIS are considered for heifers (0) and for parities 1, 2 and 3.