Table 6.
Effects of hulless barley and β-glucanase on cecal short-chain fatty acids of broiler chickens aged 28 d.
| HB1 (%) | BGase (%) | SCFA μmol/g of wet cecal content |
Molar percentage of total SCFA |
|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Total | Ace | Pro | Buty | Isob | Val | Isov | Cap | Ace | Pro | Buty | Isob | Val | Isov | Cap | ||
| 0 | 0 | 283.9 | 168.8 | 58.6 | 26.6 | 8.7 | 8.6 | 8.6 | 3.7 | 59.3 | 20.6 | 9.5 | 3.0 | 3.0 | 3.0 | 1.3 |
| 0.01 | 285.0 | 167.5 | 59.4 | 27.8 | 8.8 | 8.7 | 8.7 | 3.7 | 58.8 | 20.7 | 9.7 | 3.0 | 3.0 | 3.0 | 1.3 | |
| 0.1 | 281.0 | 166.5 | 58.1 | 26.7 | 8.6 | 8.5 | 8.6 | 3.7 | 59.2 | 20.6 | 9.5 | 3.0 | 3.0 | 3.0 | 1.3 | |
| 30 | 0 | 269.4 | 159.1 | 55.5 | 25.4 | 9.3 | 8.1 | 8.2 | 3.5 | 59.0 | 20.5 | 9.5 | 3.5 | 3.0 | 3.0 | 1.3 |
| 0.01 | 248.1 | 148.7 | 48.9 | 24.5 | 7.6 | 7.4 | 7.5 | 3.2 | 60.0 | 19.5 | 9.9 | 3.0 | 3.0 | 3.0 | 1.3 | |
| 0.1 | 277.9 | 164.0 | 57.6 | 27.3 | 8.5 | 8.4 | 8.1 | 3.6 | 58.9 | 20.7 | 9.8 | 3.0 | 3.0 | 2.9 | 1.3 | |
| 60 | 0 | 284.1 | 166.7 | 58.3 | 28.0 | 9.9 | 8.6 | 8.6 | 3.7 | 58.7 | 20.5 | 9.8 | 3.5 | 3.0 | 3.0 | 1.3 |
| 0.01 | 282.9 | 166.6 | 58.5 | 27.9 | 8.7 | 8.6 | 8.6 | 3.7 | 58.9 | 20.6 | 9.8 | 3.0 | 3.0 | 3.0 | 1.3 | |
| 0.1 | 274.4 | 162.0 | 56.5 | 27.1 | 8.4 | 8.3 | 8.3 | 3.5 | 59.0 | 20.6 | 9.9 | 3.0 | 3.0 | 3.0 | 1.3 | |
| SEM2 | 4.70 | 2.76 | 1.05 | 0.45 | 0.21 | 0.15 | 0.15 | 0.06 | 0.10 | 0.10 | 0.05 | 0.06 | 0.01 | 0.01 | 0.003 | |
| Main effects | ||||||||||||||||
| HB (%) | ||||||||||||||||
| 0 | 283.3 | 167.6 | 58.7 | 27.0 | 8.7 | 8.6 | 8.6 | 3.7 | 59.1 | 20.6 | 9.6 | 3.0 | 3.0 | 3.0 | 1.3 | |
| 30 | 272.0 | 157.3 | 54.0 | 25.8 | 8.5 | 8.0 | 7.9 | 3.4 | 59.3 | 20.2 | 9.7 | 3.2 | 3.0 | 3.0 | 1.3 | |
| 60 | 277.8 | 165.1 | 57.8 | 27.7 | 9.0 | 8.5 | 8.5 | 3.6 | 58.8 | 20.5 | 9.8 | 3.2 | 3.0 | 3.0 | 1.3 | |
| BGase (%) | ||||||||||||||||
| 0 | 279.1 | 164.9 | 57.5 | 26.7 | 9.3 | 8.4 | 8.5 | 3.6 | 59.0 | 20.5 | 9.6 | 3.3 | 3.0 | 3.0 | 1.3 | |
| 0.01 | 272.0 | 161.0 | 55.6 | 26.7 | 8.4 | 8.2 | 8.3 | 3.5 | 59.2 | 20.3 | 9.8 | 3.0 | 3.0 | 3.0 | 1.3 | |
| 0.1 | 277.8 | 164.2 | 57.4 | 27.0 | 8.5 | 8.4 | 8.3 | 3.6 | 59.1 | 20.6 | 9.7 | 3.0 | 3.0 | 3.0 | 1.3 | |
| ANOVA P-value | ||||||||||||||||
| HB | 0.227 | 0.273 | 0.140 | 0.202 | 0.583 | 0.233 | 0.149 | 0.239 | 0.168 | 0.234 | 0.133 | 0.594 | 0.862 | 0.473 | 0.805 | |
| BGase | 0.775 | 0.801 | 0.672 | 0.945 | 0.165 | 0.805 | 0.866 | 0.801 | 0.546 | 0.376 | 0.270 | 0.135 | 0.632 | 0.578 | 0.632 | |
| HB × BGase | 0.683 | 0.795 | 0.432 | 0.589 | 0.580 | 0.647 | 0.851 | 0.643 | 0.071 | 0.146 | 0.710 | 0.699 | 0.968 | 0.733 | 0.963 | |
a-dMeans within a main effect or interaction not sharing a common superscript are significantly different (P ≤ 0.05).
1
HB, hulless barley; Bgase, β-glucanase; SCFA, short-chain fatty acids; Ace, acetic acid; Pro, propionic acid; Buty, butyric acid; Isob, isobutyric acid; Val, valeric acid; Isov, Isovaleric acid; Cap, caproic acid; Lac, lactic acid.
2
SEM = pooled standard error of mean (n = 20 birds per treatment).