Effect of dietary non-digestible carbohydrates on faecal parameters of rats before infection
| Faecal parameter | Non-digestible carbohydrate | ||||
|---|---|---|---|---|---|
| Cellulose | Wheat fibre | Resistant starch | FOS | Lactulose | |
| Results are expressed as means (SEM) (n=7 in the wheat fibre group and n=8 in the other groups). | |||||
| Values in the same row not sharing the same superscript are significantly different (p<0.05)*†‡. | |||||
| §If the sum of the individual short chain fatty acids (SCFA) shown does not reach 100%, it is because of the presence of small amounts (<1% of total SCFA) of isobutyrate, valerate, and isovalerate. | |||||
| FOS, fructo-oligosaccharides. | |||||
| Dry weight excretion (g/d) | 1.04 (0.03)* | 1.04 (0.04)* | 0.45 (0.03)† | 0.28 (0.04)‡ | 0.24 (0.08)‡ |
| Relative wet weight (%) | 46 (3)* | 49 (3)* | 69 (2)† | 73 (1)† | 67 (1)† |
| pH of faecal water | 7.10 (0.13)* | 7.13 (0.08)* | 6.89 (0.15)* | 6.34 (0.05)† | 6.34 (0.10)† |
| Total SCFA (µmol/g wet faeces) | 38.8 (5.7)*† | 38.1 (4.7)*† | 49.2 (8.2)† | 31.1 (3.4)* | 27.8 (3.4)* |
| Acetate (% of total)§ | 80 (2)* | 82 (1)* | 80 (4)* | 72 (1)† | 78 (2)* |
| Propionate (% of total) | 17 (1)* | 16 (1)* | 19 (3)* | 26 (1)† | 20 (2)* |
| Butyrate (% of total) | 2 (1)* | 1 (1)* | 1 (1)* | 1 (1)* | 1 (1)* |
| Lactic acid (µmol/g wet faeces) | 0.57 (0.24)* | 0.45 (0.09)* | 1.38 (0.34)† | 1.52 (0.50)† | 6.96 (2.46)‡ |