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. 2020 Apr 11;99(6):3266–3279. doi: 10.1016/j.psj.2020.03.024

Table 3.

Feed intake and adjusted feed intake of 5 strains of broilers fed a control or AA-reduced diet from day 0 to 55.

Treatment
 Feed intake (g)
 Adjusted feed intake by BW2
Strain Diet Day 0–14 Day 14–28 Day 28–41 Day 41–55 Day0–55 Day 0–14 Day 14–28 Day 28–41 Day 41–55
Strain 1 497 1,630 2,285b 2,724 7,136 12.53 4.01 1.56 1.01b
Strain 2 504 1,584 2,291b 2,845 7,224 12.68 3.86 1.60 1.07a,b
Strain 3 525 1,694 2,402a 3,024 7,644 12.57 3.76 1.54 1.05a,b
Strain 4 492 1,561 2,363a,b 3,011 7,427 12.50 3.76 1.64 1.10a
Strain 5 475 1,432 2,153c 2,745 6,804 11.80 3.63 1.64 1.10a
SEM1 4.25 12.8 22.9 42.0 61.5 0.128 0.026 0.016 0.016
Control 512 1,590 2,325a 2,864 7,291 12.77 3.70 1.52 1.02b
Reduced 485 1,570 2,272b 2,876 7,203 12.06 3.91 1.67 1.12a
SEM 2.69 8.11 14.5 26.5 38.9 0.081 0.017 0.010 0.010
Strain 1 Control 507a,b,c 1,602b,c 2,293 2,656c 7,058d 12.84a,b 3.83c 1.52d,e 0.96
Strain 1 Reduced 487c,d 1,657a,b 2,278 2,793b,c 7,215c,d 12.22a,b 4.20a 1.59c,d 1.06
Strain 2 Control 509a,b,c 1,544c,d 2,293 2,800b,c 7,146d 12.89a 3.71c,d 1.57c,d,e 1.03
Strain 2 Reduced 498b,c,d 1,624a,b,c 2,289 2,890a,b,c 7,300a,b,c,d 12.47a,b 4.01b 1.63b,c 1.11
Strain 3 Control 534a 1,704a 2,414 2,952a,b 7,604a,b,c 12.71a,b 3.68c,d 1.47e 0.98
Strain 3 Reduced 516a,b 1,684a,b 2,389 3,095a 7,685a 12.44a,b 3.84b,c 1.60c,d 1.12
Strain 4 Control 509a,b,c 1,605b,c 2,428 3,084a 7,626a,b 12.96a 3.70c,d 1.56c,d,e 1.06
Strain 4 Reduced 475d,e 1,516d 2,298 2,939a,b 7,228b,c,d 12.04b 3.82c 1.72a,b 1.14
Strain 5 Control 500b,c,d 1,494d 2,199 2,829a,b,c 7,021d 12.45a,b 3.57d 1.49e 1.05
Strain 5 Reduced 450e 1,370e 2,106 2,661c 6,587e 11.15c 3.68c,d 1.79a 1.16
SEM 6.01 18.1 32.4 59.3 87.0 0.181 0.037 0.023 0.023
P-value Strain <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 0.0006
Diet <0.0001 0.093 0.012 0.762 0.114 <0.0001 <0.0001 <0.0001 <0.0001
Strain × Diet 0.018 <0.0001 0.227 0.014 0.0004 0.046 0.002 <0.0001 0.755

a–eMeans in a column not sharing a common superscript were different (P < 0.05).

1

SEM = standard error of mean; n = 16, 40, and 8 for treatments of strain, diet, and interaction of strain and diet, respectively.

2

Adjusted feed intake (FI) by BW = FI (g)/initial BW (g) × 100%. For example, FI by BW 14–28 = day 14–28 FI/D 14 BW × 100%.