TABLE 4.
Effects of regular lipopolysaccharide on ammonia nitrogen, VFA, and lactate concentrations in lactate-producing bacteria
| Bacterium and parameter | Value (mM) with treatmenta |
SEM | P value | |
|---|---|---|---|---|
| Control | R-LPS | |||
| Selenomonas ruminantium HD4 | ||||
| NH3-N | 3.45 | 3.47 | 0.35 | 0.90 |
| Acetate | 10.9 | 11.6 | 3.73 | 0.60 |
| Propionate | 4.85 | 5.08 | 0.49 | 0.23 |
| Valerate | 2.94 | 2.90 | 0.56 | 0.79 |
| d-Lactate | 5.07 | 4.96 | 0.09 | 0.42 |
| l-Lactate | 0.33 | 0.34 | 0.04 | 0.86 |
| dl-Lactate | 5.40 | 5.30 | 0.08 | 0.41 |
| Succinivibrio dextrinosolvens 24 | ||||
| NH3-N | 3.94 | 4.07 | 0.34 | 0.51 |
| Acetate | 27.9 | 28.3 | 0.04 | 0.22 |
| Propionate | 5.99 | 6.01 | 0.47 | 0.60 |
| Butyrate | 3.32 | 3.34 | 0.02 | 0.65 |
| d-Lactate | 4.50 | 4.43 | 0.13 | 0.44 |
| l-Lactate | — | — | — | — |
| dl-Lactate | 4.50 | 4.43 | 0.13 | 0.44 |
| Lactobacillus ruminis RF1 | ||||
| NH3-N | 4.08 | 4.27 | 0.50 | 0.37 |
| Acetate | 41.3 | 32.5 | 3.19 | 0.09 |
| Propionate | 13.3 | 10.6 | 0.92 | 0.17 |
| Butyrate | 6.99 | 5.63 | 0.54 | 0.19 |
| d-Lactate | 0.99 | 1.00 | 0.02 | 0.42 |
| l-Lactate | 7.50 | 7.20 | 0.51 | 0.35 |
| dl-Lactate | 8.50 | 8.22 | 0.56 | 0.41 |
| Streptococcus bovis JB1 with PC+VFA | ||||
| NH3-N | 4.05 | 3.83 | 0.14 | 0.30 |
| Acetate | 59.7 | 65.2 | 4.23 | 0.35 |
| Valerate | 0.91 | 0.85 | 0.05 | 0.34 |
| d-Lactate | 0.14 | 0.15 | 0.06 | 0.85 |
| l-Lactate | 6.81 | 7.13 | 0.68 | 0.47 |
| dl-Lactate | 6.96 | 7.28 | 0.64 | 0.45 |
a
Control, control group (LPS-free anaerobic water); LPS, regular LPS (200,000 EU). Lactate concentrations are millimolar. —, not applicable.