TABLE 1.
Effects of dietary NFC on rumen characteristics and serum urea-N concentration in experiment 1 (n = 10)1.
| MNFC group | LNFC group | p-value | |
| Rumen content | |||
| SCFA concentrations (mM) | |||
| Acetic acid | 72.83 ± 6.17 | 53.43 ± 3.87 | 0.003 |
| Propionic acid | 23.50 ± 4.69 | 14.50 ± 1.86 | 0.002 |
| Butyric acid | 10.17 ± 2.21 | 7.24 ± 1.35 | 0.03 |
| Total SCFA | 106.5 ± 6.16 | 75.17 ± 4.49 | 0 |
| pH | 6.58 ± 0.07 | 6.82 ± 0.16 | 0.04 |
| NH3-N (mM) | 10.72 ± 0.71 | 6.68 ± 0.45 | 0 |
| L-MCP (g/L)2 | 1.54 ± 0.12 | 1.18 ± 0.05 | 0.03 |
| Serum urea-N (mM) | 3.16 ± 0.11 | 3.39 ± 0.09 | 0.48 |
1The intake of non-fiber carbohydrate was 28% in the MNFC group (n = 10) and 14% in the LNFC (n = 10) group; the intake of nitrogen was about equal in both groups. Analyses were performed in triplicate, except for the pH analysis, which was in duplicate. Values are means ± SE. P < 0.05 is considered significant. 2L-MCP: rumen liquid associated microbial protein.