Table 5.
Effects of different concentrate feeding sequences on fecal VFA (μg/mL) levels.
| Indicators | C1 | C2 | C3 | p Value |
|---|---|---|---|---|
| Acetic acid | 220.97 ± 15.48 a | 153.74 ± 16.38 b | 133.94 ± 20.76 b | 0.017 |
| Propionic acid | 43.65 ± 6.85 | 38.46 ± 8.50 | 36.20 ± 5.30 | 0.750 |
| Butyric acid | 12.45 ± 3.43 | 10.14 ± 2.33 | 9.80 ± 2.29 | 0.764 |
| Isobutyric acid | 8.36 ± 0.90 a | 4.90 ± 0.18 b | 4.11 ± 0.35 b | 0.001 |
| Valeric acid | 4.78 ± 0.50 a | 2.48 ± 0.55 b | 1.85 ± 0.23 b | 0.003 |
| Isovaleric acid | 5.85 ± 0.78 a | 3.93 ± 0.50 b | 2.73 ± 0.44 b | 0.014 |
| Caproic acid | 0.19 ± 0.03 a | 0.10 ± 0.04 ab | 0.05 ± 0.01 b | 0.032 |
| Total VFA | 296.26 ± 19.64 a | 213.74 ± 26.04 b | 188.67 ± 23.80 b | 0.024 |
Note: The data are the means of five replicates per treatment (n = 5). The values with different letter superscripts mean significant differences (p < 0.05). VFA = volatile fatty acids.