Table 7.
Wean-to-finish performance of the four weaning batches1
| Batch allotment order | Probability, P-value< | ||||||
|---|---|---|---|---|---|---|---|
| Item | First | Second | Third | Fourth | SEM | Linear | Quadratic |
| Final BW, kg | 133.7 | 131.1 | 134.9 | 130.0 | 0.75 | 0.031 | 0.109 |
| ADG, g | 719 | 725 | 727 | 711 | 4.8 | 0.288 | 0.019 |
| ADFI, g | 1,690 | 1,697 | 1,738 | 1,686 | 14.1 | 0.669 | 0.038 |
| G:F, g/kg | 425 | 428 | 419 | 422 | 9.0 | 0.018 | 0.695 |
| Losses2, % | 6.4 | 6.2 | 8.1 | 10.3 | 1.30 | 0.013 | 0.367 |
| Weight sold/pig weaned3, kg | 124.6 | 122.6 | 123.7 | 116.6 | 1.73 | 0.005 | 0.145 |
1A total of 2,184 pigs (DNA 600, Columbus, NE × PIC L42, Hendersonville, TN) weaned at three different ages allotted in a wean-to-finish facility following a sequence of four batches of 546 pigs each. There were 26 pigs per pen (50% barrows and 50% gilts) and 28 replications per age. Each batch was placed in the facility with an interval of 8 d.
2Sum of mortalities and removed pigs.
3Weight sold per pig weaned = (final BW * final number of pigs per pen)/number of weaned pigs needed to fill one finishing pen.