Table 6.
Fecal excretion of steroid and nitrogen in rats fed experimental diets.
| Fecal excretion | CAS | RP-A | RP-E |
|---|---|---|---|
| Fecal output (g dry weight/3 day) | 4.68 ± 0.11 b | 4.81 ± 0.15 ab | 5.10 ± 0.17 a |
| Bile acids (μmol/3 day) | 114.62 ± 5.12 b | 131.21 ± 5.95 b | 154.86 ± 8.65 a |
| Neutral sterol (μmol/3 day) | |||
| total | 58.26 ± 2.52 c | 123.13 ± 3.85 b | 155.93 ± 6.60 a |
| cholesterol | 23.28 ± 1.09 c | 32.21 ± 1.70 b | 38.33 ± 1.90 a |
| coprostanol | 20.34 ± 1.55 c | 48.85 ± 1.97 b | 62.76 ± 3.46 a |
| other sterols | 14.64 ± 1.06 c | 42.07 ± 1.88 b | 54.84 ± 2.42 a |
| Triglyceride (μmol/3 day) | 7.44 ± 0.38 b | 9.55 ± 0.57 a | 10.82 ± 0.55 a |
| Nitrogen (mg/3 day) | 88.27 ± 0.81 c | 220.21 ± 4.72 b | 280.78 ± 3.79 a |
| Fecal protein (g/3 day) | 0.55 ± 0.01 c | 1.38 ± 0.03 b | 1.75 ± 0.02 a |
| Intake of dietary protein (g/3 day) | 9.62 ± 0.31 | 9.13 ± 0.14 | 9.06 ± 0.20 |
| Apparent protein digestibility (%) | 94.28 ± 0.20 a | 84.88 ± 0.47 b | 80.68 ± 0.61 c |
Values are means ± SEM for six rats.
a-c
Values with different letters are significant different, P < 0.05.