Table 6.
Individual bird body weight (kg) estimates for broiler breeder pullets reared on one of four feed and water provision treatments in a 2 × 2 factorial design1.
| Week | Treatment | SEM2 | P-values | |||||
|---|---|---|---|---|---|---|---|---|
| ED + ADLIB | ED + WR | SAD + ADLIB | SAD + WR | Feed | Water | Feed × Water | ||
| 3 | 0.56 | 0.54 | 0.55 | 0.55 | 0.019 | 0.84 | 0.56 | 0.83 |
| 4 | 0.59 | 0.57 | 0.58 | 0.58 | 0.017 | 0.84 | 0.63 | 0.83 |
| 5 | 0.64 | 0.62 | 0.63 | 0.62 | 0.019 | 0.84 | 0.57 | 0.89 |
| 6 | 0.69 | 0.68 | 0.69 | 0.68 | 0.021 | 0.94 | 0.80 | 0.87 |
| 7 | 0.75 | 0.76 | 0.76 | 0.76 | 0.021 | 0.78 | 0.80 | 0.78 |
| 8 | 0.85a | 0.89a | 0.80b | 0.85b | 0.016 | 0.046* | 0.089 | 0.99 |
| 9 | 0.94 | 0.95 | 0.92 | 0.93 | 0.024 | 0.66 | 0.64 | 0.82 |
| 10 | 1.02 | 1.04 | 1.02 | 1.01 | 0.027 | 0.97 | 0.60 | 0.62 |
| 11 | 1.11 | 1.10 | 1.09 | 1.07 | 0.025 | 0.63 | 0.92 | 0.71 |
| 12 | 1.23a | 1.23a | 1.15b | 1.20b | 0.019 | 0.012* | 0.88 | 0.18 |
| 13 | 1.33a | 1.34a | 1.23b | 1.32b | 0.021 | 0.0073* | 0.59 | 0.14 |
| 14 | 1.43 | 1.41 | 1.34 | 1.41 | 0.027 | 0.053 | 0.69 | 0.15 |
| 15 | 1.54 | 1.60 | 1.53 | 1.51 | 0.037 | 0.86 | 0.24 | 0.26 |
| 16 | 1.69 | 1.75 | 1.67 | 1.64 | 0.038 | 0.72 | 0.23 | 0.24 |
| 17 | 1.89a | 1.86a | 1.67b | 1.71b | 0.024 | <0.0001* | 0.42 | 0.14 |
| 18 | 2.08a | 1.95b | 1.79d | 1.87c | 0.024 | <0.0001* | 0.0023* | 0.0010* |
| 19 | 2.18a | 2.16a | 1.95b | 2.08b | 0.037 | 0.0008* | 0.69 | 0.061 |
| 20 | 2.30a | 2.35a | 2.09b | 2.19b | 0.050 | 0.011* | 0.52 | 0.60 |
| 21 | 2.41b | 2.54ab | 2.63a | 2.57ab | 0.043 | 0.0035* | 0.052 | 0.044* |
| 22 | 2.58b | 2.71b | 2.72a | 2.75a | 0.042 | 0.040* | 0.053 | 0.27 |
1Feeding treatments consisted of skip-a-day (SAD) and every-day (ED) feeding programs, while water provision treatments consisted of water restriction for 3 h during the 8 h photoperiod (WR) or ad libitum (ADLIB) access to water during the 8 h photoperiod.
2SEM, standard error of the mean.
Superscripts differing within a row indicate statistically significant differences (p < 0.05).
* indicates p < 0.05.