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United States Department of Agriculture

Agricultural Research Service

Research Project: PATHWAY ENGINEERING OF FUNGI FOR IMPROVED BIOPROCESS APPLICATIONS Title: Galactoglucomannan oligosaccharide Supplementation affects Nutrient Digestibility, Fermentation End-product Production, and Large Bowel Microbiota of the Dog

Authors
item Faber, T -
item Hopkins, A -
item Middelbos, I -
item Price, Neil
item Fahry, Jr, G -

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: July 11, 2010
Publication Date: July 11, 2010
Citation: Faber, T.A., Hopkins, A.C., Middelbos, I.S., Price, N.P., Fahry, Jr, G.C. 2010. Galactoglucomannan oligosaccharide supplementation affects nutrient digestibility, fermentation end-product production, and large bowel microbiota of the dog [abstract]. American Society of Animal Sciences. Abstract 1.

Technical Abstract: A galactoglucomannan oligosaccharide (GGMO) obtained from fiberboard production was evaluated as a dietary supplement for dogs. The GGMO substrate contained high concentrations of mannose, xylose, and glucose oligosaccharides. Adult dogs assigned to a 6x6 Latin square design were fed six diets, each containing a different concentration of supplemental GGMO (0, 0.5, 1, 2, 4, and 8%) that replaced dietary cellulose. Total tract dry matter (DM) and organic matter (OM) apparent digestibilities increased (P < 0.0001) linearly, while total tract crude protein (CP) apparent digestibility decreased (P < 0.0001) linearly as the dietary GGMO substrate concentration increased. Fecal concentrations of acetate, propionate, and total SCFA increased (P </ 0.0001) linearly whereas butyrate concentration decreased (P </ 0.0009) linearly with increasing dietary concentrations of GGMO. Fecal pH decreased (P </ 0.03) linearly as dietary GGMO substrate concentration increased whereas fecal score increased quadratically (P </ 0.0001). 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 < 0.0001) linearly as dietary GGMO substrate concentration increased. Fecal microbial concentrations of E. 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. Data suggest positive nutritional properties of supplemental GGMO when incorporated in a high quality dog food.

Last Modified: 12/18/2014