Table 3.
Predicted means, least significant differences (lsd), and P-values for performance indicators of control (C) and on-farm hatched (OH) chickens.
| Indicator | C | OH | lsd | P value |
|---|---|---|---|---|
| First wk mortality (%) | 1.15 | 0.82 | 0.40 | 0.086 |
| Total found dead (D0-40) (%) | 2.93 | 2.24 | 0.93 | 0.005 |
| Total culled (D0-40) (%) | 1.07 | 1.16 | 0.20 | 0.319 |
| Total mortality (D0-40) (%) | 4.01 | 3.40 | 0.52 | 0.028 |
| StDev of body weight D401 | 339 | 344 | 17 | 0.554 |
| FCR 1,500 g2 | 1.07 | 1.04 | 0.035 | 0.072 |
| FCR 2,500 g2 | 1.48 | 1.46 | 0.024 | 0.110 |
| Net FCR2 | 1.49 | 1.49 | 0.015 | 0.388 |
| Water:feed ratio | 1.80 | 1.82 | 0.06 | 0.352 |
| EPEF3 | 430.3 | 445.1 | 13.25 | 0.034 |
Significant effects (P < 0.05) or tendencies (P < 0.10) are indicated in bold.
1
StDev: Standard deviation.
2
FCR: Feed conversion ratio, either corrected to 1,500 g (FCR1500; correction factor 0.01 per 25 g) or to 2,500 g (FCR2500; correction factor 0.01 per 50 g); net FCR is the FCR calculated over the whole production period between D0 and D40.
3
European Production Efficiency Factor (EPEF): {BW gain (g/D) × [100 − mortality (%)]}/(net feed conversion × 10).