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Rat fecal samples with respective diets as received from the American Health Foundation for use in this study
| Fecal sample | Age (wk) | Probiotics in the diet |
|---|---|---|
| YR 0% | 7 | Control |
| YR 2% | 7 | 2% L. acidophilus (4.2 × 109 CFU/g) |
| YR 4% | 7 | 4% L. acidophilus (8.4 × 109 CFU/g) |
| OR 0% | 16 | Control |
| OR 2% | 16 | 2% L. acidophilus (4.2 × 109 CFU/g) |
| OR 4% | 16 | 4% L. acidophilus (8.4 × 109 CFU/g) |
