Table 2. Effects of different dietary non-starch polysaccharide (NSP) level diets on the growth performance of broilers1)

Items Treatments2) SEM3) p-value
 CON CON-X L-X M-X H-X
Body weight (g)
 Day 8 114.8 115.1 115.1 114.7 115.4 1.555 0.992
 Day 14 268.8 276.6 275.7 283.0 281.1 9.655 0.626
 Day 21 597.2 598.0 597.1 587.7 615.3 23.476 0.832
 Day 24 769.4 776.1 799.6 779.4 814.8 30.246 0.550
 Day 28 1,052.1 1,064.7 1,120.2 1,077.6 1,131.9 44.355 0.310
 Day 35 1,630.6 1,650.6 1,708.9 1,669.5 1,806.7 64.405 0.074
Average daily gain (g/day)
 Day 14 22.00 23.06 22.94 24.04 23.68 1.376 0.633
 Day 21 46.91 45.93 45.91 43.53 47.75 2.803 0.641
 Day 28 70.67 72.16 80.14 74.54 79.27 0.562 0.360
 Day 35 82.64b 83.70ab 84.11ab 84.55ab 96.40a 4.537 0.026
 Day 8–24 38.51 38.88 40.26 39.10 41.15 1.790 0.567
 Day 25–35 78.29 79.50 82.67 80.91 90.17 4.117 0.053
 Day 8–35 54.14 54.84 56.92 55.53 60.41 2.287 0.073
Average daily feed intake (g/day)
 Day 14 31.36 32.47 32.91 32.65 31.97 1.194 0.715
 Day 21 67.52 64.98 66.73 64.21 61.56 2.031 0.049
 Day 28 105.05 101.42 115.88 105.55 112.48 8.208 0.400
 Day 35 116.97ab 108.51b 124.58ab 113.99ab 125.96a 6.060 0.041
 Day 8–24 56.61 55.99 57.57 55.91 54.73 1.530 0.316
 Day 25–35 112.74 106.53 115.74 110.85 121.73 5.817 0.141
 Day 8–35 78.50 75.68 80.26 77.74 80.95 2.992 0.426
Feed conversion ratio (g/g)
 Day 14 1.44 1.42 1.44 1.37 1.36 0.070 0.621
 Day 21 1.46 1.44 1.47 1.50 1.30 0.107 0.404
 Day 28 1.49 1.41 1.46 1.42 1.44 0.104 0.950
 Day 35 1.42 1.30 1.49 1.35 1.31 0.072 0.334
 Day 8–24 1.47 1.44 1.43 1.43 1.33 0.066 0.269
 Day 25–35 1.44 1.34 1.40 1.37 1.35 0.058 0.388
Values are the mean of eight replicates per treatment.
CON, control diet; CON-X, CON + 3,000 U/kg xylanase; L-X, corn replaced to 2% wheat bran in CON + 3,000 U/kg xylanase; M-X, corn replaced to 4% wheat bran in CON + 3,000 U/kg xylanase; H-X, corn replaced to 8% wheat bran in CON+ 3,000 U/kg xylanase.
Pooled standard error of the mean.
Values in a row with different superscripts differ significantly (p < 0.05).