Galactoglucomannan oligosaccharide supplementation affects nutrient digestibility, fermentation end-product production, and large bowel microbiota of the dog1
| Autor: | Trevor A. Faber, Ingmar S. Middelbos, George C. Fahey, Anne Chace Hopkins, Neil P. J. Price |
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| Rok vydání: | 2011 |
| Předmět: |
chemistry.chemical_classification
General Medicine Biology Clostridium perfringens Oligosaccharide medicine.disease_cause biology.organism_classification chemistry.chemical_compound Nutrient Biochemistry chemistry Latin square Lactobacillus Genetics medicine Propionate Animal Science and Zoology Fermentation Food science Galactoglucomannan Food Science |
| Zdroj: | Journal of Animal Science. 89:103-112 |
| ISSN: | 1525-3163 0021-8812 |
| DOI: | 10.2527/jas.2010-3028 |
| Popis: | A galactoglucomannan oligosaccharide (GGMO) obtained from fiberboard production was evaluated as a dietary supplement for dogs. The GGMO substrate contained increased concentrations of oligosaccharides containing mannose, xylose, and glucose, with the mannose component accounting for 35% of DM. Adult dogs assigned to a 6 × 6 Latin square design were fed 6 diets, each containing a different concentration of supplemental GGMO (0, 0.5, 1, 2, 4, and 8%) that replaced dietary cellulose. Total tract DM and OM apparent digestibilities increased (P < 0.001) linearly, whereas total tract CP apparent digestibility decreased (P < 0.001) linearly as dietary GGMO substrate concentration increased. Fecal concentrations of acetate, propionate, and total short-chain fatty acids increased (P ≤ 0.001) linearly, whereas butyrate concentration decreased (P ≤ 0.001) linearly with increasing dietary concentrations of GGMO. Fecal pH decreased (P ≤ 0.001) linearly as dietary GGMO substrate concentration increased, whereas fecal score increased quadratically (P ≤ 0.001). Fecal phenol (P ≤ 0.05) and indole (P ≤ 0.01) concentrations decreased linearly with GGMO supplementation. Fecal biogenic amine concentrations were not different among treatments except for phenylethylamine, which decreased (P < 0.001) linearly as dietary GGMO substrate concentration increased. Fecal microbial concentrations of Escherichia coli, Lactobacillus spp., and Clostridium perfringens were not different among treatments. A quadratic increase (P ≤ 0.01) was noted for Bifidobacterium spp. as dietary GGMO substrate concentration increased. The data suggest positive nutritional properties of supplemental GGMO when incorporated in a good-quality dog food. |
| Databáze: | OpenAIRE |
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