Table 2.
Traits of interest.
| Trait group | Trait sub-group | Trait | Description | Abbreviation |
|---|---|---|---|---|
| Fertility traits | Fertility | Non-return rate heifer | Heifers non-return rate after 56 days, binary | NRh |
| Non-return rate cow | Cows non-return rate after 56 days, binary | NRc | ||
| Interval first to last insemination heifer | Interval between first and last insemination for heifer, days | IFLh | ||
| Interval first to last insemination cow | Interval between first and last insemination for cows, days | IFLc | ||
| Interval calving to insemination | Interval from calving to first service, days | DFS | ||
| Birth traits | Birth history direct | Percentage normal births | Calving ease, scored between 1-without help to 5-dystocia | CEd |
| Percentage live births | Percentage of calves born alive | SBd | ||
| Birth weight | Weight of calve at birth, kg | BWd | ||
| Gestation length | Days from successfull insemination to birth | GLd | ||
| Multiple birth | Percentage of multiple births | MBd | ||
| Birth history maternal | Percentage normal births | Calving ease, scored between 1-without help to 5-dystocia | CEm | |
| Percentage live births | Percentage of calves born alive | SBm | ||
| Birth weight | Weight of calve at birth, kg | BWm | ||
| Gestation length | Days from successfull insemination to birth | GLm | ||
| Multiple birth | Percentage of multiple births | MBm | ||
| Survival traits | Rearing success | Survival period 1 | Survival from day 3 up to 30th day of life | P1 |
| Survival heifer period 2 | Survival of heifers from day 31 up to 458 days | P2h | ||
| Survival bull period 2 | Survival of young bulls from 31 up to 183 days | P2b |