Table 2.
Concentrations of VFA and lipopolysaccharides in cecal content of finishing pigs ranked on RFIa–c
| Itemd | LRFI | HRFI | SEM | P-valuese |
|---|---|---|---|---|
| Total VFA (µmmol/kg) | 185.1 | 174.4 | 8.711 | 0.368 |
| Acetate (µmol/g) | 111.2 | 105.5 | 4.896 | 0.393 |
| Propionate (µmol/g) | 49.8 | 46.7 | 2.760 | 0.408 |
| Butyrate (µmol/g) | 19.1 | 17.4 | 1.594 | 0.431 |
| Isobutyrate (µmol/g) | 1.92 | 1.91 | 0.199 | 0.969 |
| Valerate (µmol/g) | 2.44 | 2.24 | 0.407 | 0.716 |
| Isovalerate (µmol/g) | 0.52 | 0.54 | 0.149 | 0.922 |
| Caproate (µmol/kg) | 0.10 | 0.10 | 0.036 | 0.921 |
| Lipopolysaccharides (log10 EU/g) | 6.25 | 6.13 | 0.071 | 0.207 |
aValues are least squares means ± SEM.
bHRFI, high RFI; LRFI, low RFI.
cRFI was determined between days 42 and 91 pw (n = 8/RFI rank).
dResults are presented on fresh matter basis.
eMain effect of RFI rank.