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Cereal non-starch polysaccharides in pig diets

influence on digestion site, gut environment and microbial populations

Högberg, Ann (2003). Cereal non-starch polysaccharides in pig diets. Diss. (sammanfattning/summary) Uppsala : Sveriges lantbruksuniv., Acta Universitatis agriculturae Sueciae. Agraria, 1401-6249 ; 413
ISBN 91-576-6437-4
[Doctoral thesis]

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Abstract

This thesis is based on three different studies comprising the weaning and the growing period, aiming at monitoring the influence of cereal non-starch polysaccharides (NSP) and dietary enzyme supplementation on gastro-intestinal processes in pigs. The diets were based on cereals and cereal by-products, and composed to contain different amounts of total as well as soluble NSP. Results from these studies have shown that with increased NSP content, the reduction in digestibility of organic matter (OM) was twice as high in the small intestine than in the total tract, both in newly weaned piglets and growing pigs. An increased proportion of insoluble NSP decreased the digestibility of OM and fibre components in the small intestine of the newly weaned piglets and in the total tract of growing pigs. The gut environment, as described by content and proportions of organic acids (OA) and pH, as well as total microbial populations and coliform diversity, was altered by NSP content and solubility, whereas enzyme supplementation influenced the distribution of OA in the small intestine. PVTC-cannulation did not influence the coliform flora, and results obtained from PVTC-cannulated pigs were concluded to reflect true intestinal conditions. In conclusion, these results indicate that the dietary content of total and soluble NSP influence gastro-intestinal processes such as digestion site, gut environment and microbial populations in different ways in newly weaned piglets and in growing pigs. Therefore, NSP constitute an important tool with possibilities to influence gut health in pigs, and may therefore offer prospects to optimise the feed for pigs of different age.

Authors/Creators:Högberg, Ann
Title:Cereal non-starch polysaccharides in pig diets
Subtitle:influence on digestion site, gut environment and microbial populations
Year of publishing :September 2003
Volume:413
Number of Pages:49
Papers/manuscripts:
NumberReferences
IHögberg, A., Lindberg, J. E. & Wallgren P. 2001. Influence of ileo-caecal cannulation and oxytetracycline on ileo-caecal and rectal coliform populations in pigs. Acta veterinaria scandinavica 42, 435-440.
IIHögberg, A. & Lindberg, J. E. 2003. Influence of cereal non-starch polysaccharides on digestion site and gut environment in growing pigs. Livestock production science. In press.
IIIHögberg, A., Lindberg, J. E., Leser, T. & Wallgren, P. 2003. Influence of cereal non-starch polysaccharides on gut microbial populations in growing pigs. (Submitted)
IVHögberg, A. & Lindberg, J. E. 2003. Influence of enzyme supplementation in cereal based diets on digestion site and gut environment in weaned piglets. (Submitted)
VHögberg, A. & Lindberg, J. E. 2003. Influence of cereal non-starch polysaccharides on digestion site and gut environment in piglets around weaning. (Submitted)
Place of Publication:Uppsala
Publisher:Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences
ISBN for printed version:91-576-6437-4
ISSN:1401-6249
Language:English
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:L Animal production > L51 Animal physiology - Nutrition
Subjects:Not in use, please see Agris categories
Agrovoc terms:swine, weaning, digestibility, organic acids, enzymes, digestive system, dna fingerprinting, coliform bacteria
Keywords:weaning, digestibility, organic acids, enzymes, PVTC cannula, gastro-intestinal tract, biochemical fingerprinting, coliform diversity, T-RFLP
URN:NBN:urn:nbn:se:slu:epsilon-69
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-69
ID Code:338
Department:(VH) > Dept. of Animal Nutrition and Management
Deposited By: Ann Högberg
Deposited On:05 Sep 2003 00:00
Metadata Last Modified:19 Mar 2015 10:13

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