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Gewählte Master / Diploma Thesis:

Sandra Steindl (2008): Auswirkungen unlöslicher Ballaststoffquellen auf die Bildung von kurzkettigen Fettsäuren in verschiedenen Darmabschnitten am Modelltier Schwein.
Master / Diploma Thesis - Abteilung Tierische Lebensmittel, Tierernährung und Ernährungsphysiologie (TTE), BOKU-Universität für Bodenkultur, pp 78. UB BOKU obvsg

Data Source: ZID Abstracts
Abstract:
Dietary fiber provides important contributions to the integrity of gastrointestinal physiology of monogastrics. Depending on their chemical structure dietary fiber categorizes in soluble and insoluble types. Soluble fibers stimulate mainly microbial fermentation, while the effects of insoluble representatives are rather unknown. The short chain fatty acids (SCFA), composed of the fermentation of fibrous and endogenous substances, are absorbed and metabolised. They provide energy for the body and improve the health of the intestine. In the study conducted in this context the weanling piglet was used as animal model to show the effects of different insoluble fibers (wheat bran - rich in insoluble hemicellulose and Chinese Masson pine pollen - rich in lignin) on digestive physiology. 3.0% wheat bran, 1.3% respectively 2.6% pine pollen was added to the basal diet of 48 weaned piglets, and it was given ad libidum. After 5 weeks, the animals were slaughtered under standardised conditions, and chyme samples of the terminal ileum and colon (flexura centralis) were taken. Gas chromatography (GC) was used to determine the content of SCFA and enzymatic methods calculated the content of lactate. Addition of insoluble fiber to the diet had no effect on the concentration and pattern of volatile fatty acids in the investigated intestinal sections. However, the level of lactate was reduced in the colon. Obviously, insoluble fibers have no relevance as a substrate for microbial fermentation in the gut, but it seems they indirectly influence the fermentation events.

BetreuerIn: Windisch Wilhelm Matthias
2.BetreuerIn: Schedle Karl

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