Table 1.
Descriptive statistics
| Item | n | Mean | CV (%) | Min | Max |
|---|---|---|---|---|---|
| Sow traits | |||||
| Parity | 536 | 4.6 | 54.1 | 1 | 14 |
| Live born/litter | 536 | 14.3 | 22.5 | 3 | 21 |
| Pigs weaned/litter | 536 | 12.6 | 23.1 | 2 | 19 |
| Body weight, kg | |||||
| Birth (live) | 7,654 | 1.32 | 25.9 | 0.1 | 4.2 |
| Weaning | 6,777 | 7.19 | 21.3 | 2.0 | 12.2 |
| Nursery exit | 4,805 | 24.7 | 17.4 | 9.6 | 42.0 |
| Finishing exit | 1,417 | 120.0 | 6.0 | 58.5 | 146.0 |
| Adjusted finishing (day 167)1 | 1,417 | 120.6 | 9.6 | 74.5 | 171.2 |
| Pig age, d | |||||
| Weaning | 6,777 | 26.2 | 7.1 | 18.0 | 46.0 |
| Nursery exit | 4,805 | 67.1 | 10.8 | 52.0 | 105 |
| Finishing exit | 1,417 | 166.9 | 5.7 | 99.0 | 196 |
| Slaughter | 4,574 | 174.4 | 8.4 | 139 | 306 |
| Average daily gain, g | |||||
| Suckling (birth to weaning) | 6,775 | 223 | 23.5 | 17 | 387 |
| Nursery (Weaning to day 66) | 4,805 | 428 | 18.9 | 118 | 769 |
| Grow-Finish | 1,417 | 932 | 10.4 | 499 | 1,409 |
| Overall (weaning to finish) | 1,417 | 802 | 9.1 | 500 | 1,116 |
| Carcass characteristics | |||||
| Hot carcass wt., kg | 4,574 | 92.6 | 6.2 | 65.6 | 119.2 |
| Adjusted HCW (day 174), kg2 | 4,573 | 93.4 | 11.1 | 42.2 | 133.1 |
| Backfat depth, mm | 4,570 | 13.3 | 19.4 | 5.7 | 23.8 |
| Loin depth, mm | 4,570 | 63.2 | 10.8 | 37.3 | 87.2 |
| Lean percentage3, % | 4,572 | 59.5 | 2.83 | 52.7 | 64.3 |
| Lean growth rate, g/d | 4,571 | 345 | 9.6 | 167 | 506 |
1Adjusted finishing (day 167) weight = Average daily gain (ADG, kg/d) grow-finish × (167 d – actual age) × 1.16 + finishing BW, kg.
2Adjusted HCW (day 174) = (Hot carcass weight, HCW, kg – weaning weight × 0.7, kg)/ (age at slaughter – age at weaning) × (174 d– age at slaughter) × 1.16 + HCW, kg.
3Lean percentage, % = 66.86 − 0.6549 × backfat depth (mm)+ 0.0207 × loin depth (mm).