TABLE 3.
DM content, pH, and concentrations of lactate and SCFA of gut digesta in pigs fed the EMS or control dieta
| Parameter | Result for diet groupb |
SEM | Diet P valuec | |||||
|---|---|---|---|---|---|---|---|---|
| Cecum |
Proximal colon |
Midcolon |
||||||
| Control | EMS | Control | EMS | Control | EMS | |||
| DM (%) | 21.2 A | 18.8 B | 25.9 A | 23.4 B | 34.2 A | 31.8 B | 0.96 | 0.030 |
| pH | 7.5 B | 7.7 A | 8.0 | 8.0 | 8.7 | 8.7 | 0.10 | 0.328 |
| Concn of fermentation acids (μmol/g digesta) | ||||||||
| Total lactate | 0.99 | 1.71 | 1.61 | 1.81 | 1.25 | 1.04 | 0.37 | 0.439 |
| l-Lactate | 0.82 | 1.23 | 1.13 | 1.2 | 1.08 | 0.82 | 0.22 | 0.702 |
| d-Lactate | 0.17 | 0.47 | 0.48 | 0.62 | 0.17 | 0.22 | 0.16 | 0.230 |
| Total SCFA | 127.0 a | 104.5 b | 117.6 | 106.4 | 56.4 | 60.2 | 6.52 | 0.057 |
| Acetate | 79.7 A | 68.9 B | 73.3 | 69.8 | 33.1 | 36.0 | 4.37 | 0.295 |
| Propionate | 30.9 a | 22.5 b | 28.2 a | 22.0 b | 13.3 | 13.5 | 1.59 | 0.001 |
| Iso-butyrate | 4.0 A | 3.5 B | 4.2 A | 3.7 B | 2.9 | 3.2 | 0.22 | 0.039 |
| Butyrate | 6.9 | 5.6 | 6.4 | 6.5 | 3.5 | 3.6 | 0.68 | 0.564 |
| Iso-valerate | 2.8 a | 1.9 b | 2.9 a | 2.2 b | 2.2 | 2.5 | 0.20 | 0.003 |
| Valerate | 2.5 a | 1.9 b | 2.4 a | 1.9 b | 1.3 | 1.3 | 0.16 | 0.017 |
| Caproate | 0.22 | 0.19 | 0.21 | 0.21 | 0.17 | 0.17 | 0.03 | 0.700 |
a
Data are presented as least-square means ± SEM. n = 8 pigs in the control diet group, and n = 7 pigs in the EMS diet group.
b
Different capital letters at one gut site indicate a tendency (P < 0.1) for a difference between the EMS and control diets at this gut site. Different lowercase letters at one gut site indicate significant difference (P < 0.05) between the EMS and control diets at this gut site.
c
Gut site affected (P < 0.05) all variables except lactate, iso-valerate, and caproate. Diet × gut site interactions are shown for propionate (P = 0.032) and iso-valerate (P = 0.028).