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Permanent link (DOI): https://doi.org/10.7939/R3599ZF7Q

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Effects of viscosity and fermentability of dietary fibre on nutrient digestibility and digesta characteristics in ileal-cannulated grower pigs Open Access

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Author or creator
Hooda, Seema
Metzler-Zebeli, Barbara U.
Vasanthan, Thavaratnam
Zijlstra, Ruurd T.
Additional contributors
Subject/Keyword
Viscosity
Fermentability
Pigs
Dietary Fibre
Type of item
Journal Article (Published)
Language
English
Place
Time
Description
Relative contributions of two functional properties, viscosity and fermentability of dietary fibre, on apparent ileal digestibility (AID), apparent total tract digestibility (ATTD), digesta passage rate, N retention and SCFA concentration have not been established. Thus, eight ileal-cannulated pigs randomised in a double 4 × 4 Latin square were fed four diets based on maize starch and casein supplemented with 5 % of actual fibre in a 2 × 2 factorial arrangement: low-fermentable, low-viscous cellulose (CEL); low-fermentable, high-viscous carboxymethylcellulose (CMC); high-fermentable, low-viscous oat β-glucan (LBG); high-fermentable, high-viscous oat β-glucan (HBG). Viscosity and fermentability interacted to affect (P < 0·001) digesta viscosity and AID and ATTD of nutrients. These properties tended to interact to affect (P < 0·10) digesta passage rate and butyrate. Pigs fed the CMC diet had the lowest (P < 0·05) digesta passage rate and the highest (P < 0·001) AID of energy, crude protein and DM, and ATTD of energy and DM. Post-ileal DM digestibility was highest (P < 0·001) for pigs fed the CEL and HBG diets. Post-ileal DM digestibility had a negative, curvilinear relationship with the AID of energy and crude protein (R2 0·85 and 0·72, respectively; P < 0·001). Digesta viscosity had a less strong relationship with the AID of energy and crude protein (R2 0·45 and 0·36, respectively; P < 0·001). In conclusion, high-viscous, low-fermentable dietary fibre increases the proportion of a diet that is digested in the small intestine by reducing digesta passage rate.
Date created
2011
DOI
doi:10.7939/R3599ZF7Q
License information
© The Authors 2011
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Citation for previous publication
Hooda, S., Metzler-Zebeli, B. U., Vasanthan, T., & Zijlstra, R. T. (2011). Effects of viscosity and fermentability of dietary fibre on nutrient digestibility and digesta characteristics in ileal-cannulated grower pigs. British Journal of Nutrition, 106(5), 664-674.  http://dx.doi.org/10.1017/S0007114511000985

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