Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/5580
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dc.contributor.authorMikkelsen, Lene Linden
dc.contributor.authorKnudsen, Knud Eric Bachen
dc.contributor.authorJensen, Bent Borgen
dc.date.accessioned2010-04-16T09:42:00Z-
dc.date.issued2004-
dc.identifier.citationAnimal Feed Science and Technology, 116(3-4), p. 225-238en
dc.identifier.issn1873-2216en
dc.identifier.issn0377-8401en
dc.identifier.urihttps://hdl.handle.net/1959.11/5580-
dc.description.abstractAn in vitro study was performed to investigate the fermentation of fructo-oligosaccharides (FOS) and transgalacto-oligosaccharides (TOS) by bacteria harvested from the gastrointestinal tract of piglets. In addition, the apparent ileal digestibility of FOS and TOS was measured. Thirty piglets were fed either a semi-synthetic control diet or the control diet supplemented with 40 g FOS or 40 g TOS per kg (n = 10). After 29 days, the piglets were killed and the gastrointestinal contents collected for the in vitro experiment and chemical analysis. The results demonstrated that bacteria from the stomach were nearly incapable of degrading FOS and TOS, whereas bacteria from the distal small intestine to some extend fermented FOS and TOS. Fermentation of FOS and TOS with bacteria from the stomach and distal small intestine was not affected by the dietary treatment of the piglets. Bacteria from the caecum and mid colon of the piglets showed the highest capacity to degrade FOS and TOS in vitro and the microbiota seemed to adapt to the dietary FOS. Caecal bacteria from piglets fed the FOS diet had tendencies to increased production rate of organic acids (P < 0.1), propionic acid (P < 0.1) and valeric acid (P < 0.1) and significantly higher production rate of butyric acid (P < 0.05) from FOS as compared with bacteria from piglets fed the control and TOS diet. Colonic bacteria from piglets fed the FOS diet also had significantly higher production rates of butyric acid (P < 0.05) and capronic acid (P < 0.01). In addition, significantly lower molar proportions of acetic acid (P < 0.05) and propionic acid (P < 0.05), and a significantly higher molar proportion of capronic acid (P < 0.05) were observed for colonic bacteria from piglets fed the FOS diet as compared with the control diet. Fermentation of TOS by bacteria from the caecum and mid colon was generally not affected by the dietary treatment of the piglets. It was estimated that the capacity for microbial degradation of the dietary FOS and TOS during passage of the stomach and small intestine of the piglets was approximately a proportion of 0.20 for FOS and 0.16 for TOS. The coefficient of apparent ileal digestibility (CAID) was 0.57 (range 0.39–0.89) for FOS and 0.56 (range 0.31–0.82) for TOS. In conclusion, a proportion between 0.20 and 0.60 of FOS and TOS are degraded by the microbiota in the small intestine of piglets and the microbiota of the large intestine adapt to the administration of FOS in the feed.en
dc.languageenen
dc.publisherElsevier BVen
dc.relation.ispartofAnimal Feed Science and Technologyen
dc.titleIn vitro fermentation if fructo-oligosaccharides and trans galacto-oligosaccharides by adapted and unadapted bacterial populations for the gastrointestinal tract of pigletsen
dc.typeJournal Articleen
dc.identifier.doi10.1016/j.anifeedsci.2004.07.007en
dc.subject.keywordsMicrobial Ecologyen
local.contributor.firstnameLene Linden
local.contributor.firstnameKnud Eric Bachen
local.contributor.firstnameBent Borgen
local.subject.for2008060504 Microbial Ecologyen
local.subject.seo2008830308 Pigsen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emaillmikkels@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordpes:4094en
local.publisher.placeNetherlandsen
local.format.startpage225en
local.format.endpage238en
local.identifier.scopusid4444351960en
local.peerreviewedYesen
local.identifier.volume116en
local.identifier.issue3-4en
local.contributor.lastnameMikkelsenen
local.contributor.lastnameKnudsenen
local.contributor.lastnameJensenen
dc.identifier.staffune-id:lmikkelsen
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:5712en
dc.identifier.academiclevelAcademicen
local.title.maintitleIn vitro fermentation if fructo-oligosaccharides and trans galacto-oligosaccharides by adapted and unadapted bacterial populations for the gastrointestinal tract of pigletsen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorMikkelsen, Lene Linden
local.search.authorKnudsen, Knud Eric Bachen
local.search.authorJensen, Bent Borgen
local.uneassociationUnknownen
local.year.published2004en
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