Table 8. Superzyme addition into reduced energy and reduced amino acid diet on jejunum morphology of the broiler chickens
Item | Treatment1) | SEM | p-value2) |
PC | NC-1 | NC-2 | NC-1+1X | NC-2+1X | NC-1+2X | NC-2+2X | Overall | Energy | AA |
Day 21 |
Villus height (um) | 877.72 | 789.23 | 729.36 | 852.35 | 836.28 | 834.42 | 815.14 | 13.701 | 0.053 | 0.463 | 0.014 |
Crypt depth (um) | 88.09 | 90.50 | 84.51 | 89.63 | 75.21 | 76.87 | 81.31 | 2.035 | 0.262 | 0.151 | 0.435 |
Villus width (um) | 95.19 | 100.12 | 87.74 | 97.01 | 93.08 | 98.13 | 94.42 | 1.170 | 0.128 | 0.778 | 0.167 |
V:C ratio | 10.40ab | 9.03b | 9.02b | 9.76ab | 12.02a | 11.36ab | 9.47ab | 0.269 | 0.005 | 0.052 | 0.003 |
Day 35 |
Villus height (um) | 1,077.62 | 989.87 | 974.93 | 998.75 | 1,017.56 | 1,135.55 | 1,047.20 | 19.359 | 0.284 | 0.061 | 0.699 |
Crypt depth (um) | 99.68 | 115.08 | 121.31 | 79.72 | 82.66 | 114.95 | 109.09 | 4.446 | 0.062 | 0.199 | 0.002 |
Villus width (um) | 109.14 | 110.00 | 109.26 | 105.67 | 101.80 | 112.38 | 105.83 | 1.229 | 0.317 | 0.381 | 0.353 |
V:C ratio | 11.58abc | 9.41bc | 8.22c | 13.09a | 12.68ab | 12.04ab | 10.19abc | 0.378 | 0.001 | 0.018 | 0.001 |
PC, nutrient sufficient diet; NC-1, 120 kcal/kg, reduce energy diet; NC-2, 3%, digestible amino acid reduced diet; 1X, 0.025% superzyme-CS addition; 2X, 0.05% superzyme-CS addition.
Overall, p-value for all treatment effect; Energy, p-value for enzyme effect on reduced energy diets; AA, p-value for enzyme effect on reduced amino acid diets.
Means within a same column with no common superscript differ significantly (p < 0.05).
PC, positive control; NC, negative control.