Table 2.
Effects of hatch window period (HWP) and nutrient access of feed and water (FAW) or control (CTL) in the hatching basket on body, yolk, and liver weights of day-old broiler chicks.
| Item | Yolk-Free BW (g) |
Yolk | Liver | ||
|---|---|---|---|---|---|
| Weight (g) |
Relative to BW (%) |
Weight (g) |
Relative to BW (%) |
||
| Interaction means (n = 13) | |||||
| Early—CTL | 36.39 b | 4.38 | 10.58 | 1.34 | 3.30 |
| Early—FAW | 40.22 a | 3.98 | 9.00 | 1.65 | 3.75 |
| Pre-peak—CTL | 38.23 a,b | 5.06 | 12.30 | 1.32 | 2.87 |
| Pre-peak—FAW | 38.25 a,b | 4.51 | 10.53 | 1.32 | 3.10 |
| Post-peak—CTL | 39.06 a,b | 4.99 | 11.22 | 1.39 | 3.21 |
| Post-peak—FAW | 38.98 a,b | 5.51 | 12.39 | 1.30 | 2.92 |
| Late—CTL | 37.85 a,b | 5.61 | 12.80 | 1.21 | 2.81 |
| Late—FAW | 38.21 a,b | 5.67 | 12.98 | 1.22 | 2.78 |
| SEM | 0.792 | 0.397 | 0.852 | 0.084 | 0.207 |
| Main effect of HWP (n = 26) | |||||
| Early | 38.31 | 4.18 b | 9.79 b | 1.50 a | 3.53 a |
| Pre-peak | 38.24 | 4.78 a,b | 11.41 a,b | 1.32 a,b | 2.98 b |
| Post-peak | 39.02 | 5.25 a | 11.80 a,b | 1.34 a,b | 3.06 a,b |
| Late | 38.03 | 5.64 a | 12.85 a | 1.22 b | 2.80 b |
| SEM | 0.549 | 0.276 | 0.590 | 0.058 | 0.143 |
| Main effect of basket (n = 13) | |||||
| CTL | 37.88 | 5.01 | 11.72 | 1.31 | 3.05 |
| FAW | 38.91 | 4.91 | 11.20 | 1.37 | 3.14 |
| SEM | 0.381 | 0.193 | 0.410 | 0.041 | 0.099 |
| p-values | |||||
| HWP | 0.594 | 0.002 | 0.002 | 0.009 | 0.002 |
| Basket | 0.054 | 0.726 | 0.361 | 0.299 | 0.519 |
| HWP × basket | 0.026 | 0.505 | 0.224 | 0.089 | 0.276 |
a,b Means within a column that do not share a common superscript are significantly different (p < 0.05) as determined by a Tukey’s multiple comparison test.