Skip to main content
. 2025 Aug 8;12:1611967. doi: 10.3389/fvets.2025.1611967

Table 7.

Average coefficient of variation (%) estimates for pens of broiler breeder pullets reared on one of four feed and water provision treatments in a 2 × 2 factorial design (n = 4 pens/treatment)1.

Week Treatment SEM2 P-values
ED + ADLIB ED + WR SAD + ADLIB SAD + WR Feed Water Feed × Water
3 9.32 11.57 10.08 10.24 1.85 0.78 0.41 0.58
4 9.32 10.49 10.34 8.81 1.70 0.68 0.63 0.44
5 10.23 10.98 10.78 9.88 1.19 0.76 0.67 0.51
6 11.36 10.74 11.28 10.12 1.51 0.97 0.78 0.86
7 13.04 11.09 11.59 7.84 0.85 0.25 0.13 0.31
8 14.62 11.06 11.33 10.6 1.23 0.08 0.06 0.26
9 14.06a 10.96b 12.32a 8.55b 0.88 0.19 0.029* 0.71
10 13.87 11.30 12.85 9.49 1.18 0.55 0.15 0.74
11 15.50 12.60 16.27 13.59 2.84 0.85 0.49 0.97
12 13.38 12.36 15.09 12.64 1.68 0.49 0.67 0.68
13 10.05 12.15 13.62 12.19 1.24 0.07 0.26 0.18
14 16.60 13.12 15.79 11.03 1.38 0.68 0.10 0.65
15 11.49 12.68 12.16 11.71 1.23 0.71 0.51 0.52
16 11.96 12.78 12.08 11.14 1.33 0.95 0.67 0.52
17 11.74 15.48 16.03 13.59 2.43 0.24 0.30 0.23
18 16.12 16.64 15.77 16.82 2.33 0.92 0.88 0.91
19 10.05b 13.13bc 14.50a 9.72c 1.36 0.040* 0.14 0.014*
20 10.42 11.27 12.81 10.01 2.06 0.43 0.77 0.39
21 10.87 12.09 10.70 10.38 1.34 0.93 0.53 0.57
22 11.44 11.73 10.15 11.89 1.75 0.61 0.91 0.69

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.