Table 2.
Water to feed ratio estimate (95% CI) calculated from average bird water intake (g) and average bird feed intake (g) of broiler breeder pullets reared on one of four feed and water provision treatments in a 2 × 2 factorial design1.
| Treatment | 4 weeks | 10 weeks | 16 weeks | 22 weeks |
|---|---|---|---|---|
| Feed | ||||
| ED | 2.00 (1.83, 2.17)a | 1.70 (1.52, 1.87) | 1.89 (1.72, 2.06)a | 1.59 (1.42, 1.76)a |
| SAD | 1.16 (0.99, 1.33) b | 1.47 (1.30, 1.64) | 1.31 (1.13, 1.48)b | 0.98 (0.81, 1.15)b |
| Water | ||||
| ADLIB | 1.52 (1.35, 1.69) | 1.54 (1.37, 1.71) | 1.70 (1.53, 1.87) | 1.29 (1.12, 1.46) |
| WR | 1.64 (1.47, 1.81) | 1.63 (1.46, 1.80) | 1.50 (1.33, 1.67) | 1.28 (1.11, 1.45) |
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.
Superscripts differing within a column indicate statistically significant differences identified with a Tukey’s pairwise comparison post hoc test (p < 0.05).