Table 4.
Weekly BW of broiler breeder pullets raised using different rearing strategies (RS), everyday spin feeding (EDS) or skip-a-day feeding (SAD), to reach target body weight for photostimulation (PS) at 15 wks or 21 wks. Values are the means ± SEM with 3 replicate pens of 200 pullets per treatment (n = 6 for PS and RS main effects).
| SAD-15 |
EDS-15 |
SAD-21 |
EDS-21 |
|
|---|---|---|---|---|
| Wk of age | g/bird | |||
| 3 | 419 ± 4 | 417 ± 4 | 419 ± 4 | 417 ± 4 |
| 5 | 702 ± 7 | 703 ± 8 | 624 ± 7 | 635 ± 6 |
| 8 | 1,105 ± 11 | 1,047 ± 11 | 892 ± 8 | 847 ± 8 |
| 11 | 1,418 ± 12 | 1,348 ± 8* | 1,072 ± 10 | 1,082 ± 9 |
| 14 | 2,080 ± 9 | 2,013 ± 8* | 1,450 ± 14 | 1,416 ± 12 |
| 18 | 1,750 ± 16 | 1,690 ± 9* | ||
| 20 | 2,111 ± 12 | 2,050 ± 8* | ||
Value significantly differs from the corresponding value for pullets within the same PS curve.