Kiwifruit fibre level influences the predicted production and absorption of SCFA in the hindgut of growing pigs using a combined in vivo-in vitro digestion methodology

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dc.citation.issue8
dc.citation.volume115
dc.contributor.authorMontoya CA
dc.contributor.authorRutherfurd S
dc.contributor.authorMoughan PJ
dc.date.available2016-04-28
dc.date.available2015-05-19
dc.date.issued2015-05-19
dc.description.abstractCombined in vivo (ileal cannulated pig) and in vitro (faecal inoculum-based fermentation) digestion methodologies were used to predict the production and absorption of SCFA in the hindgut of growing pigs. Ileal and faecal samples were collected from animals (n 7) fed diets containing either 25 or 50 g/kg DM of kiwifruit fibre from added kiwifruit for 14 d. Ileal and faecal SCFA concentrations normalised for food DM intake (DMI) and nutrient digestibility were determined. Ileal digesta were collected and fermented for 38 h using a fresh pig faecal inoculum to predict SCFA production. The predicted hindgut SCFA production along with the determined ileal and faecal SCFA were then used to predict SCFA absorption in the hindgut and total tract organic matter digestibility. The determined ileal and faecal SCFA concentrations (e.g. 8·5 and 4·4 mmol/kg DMI, respectively, for acetic acid for the low-fibre diet) represented only 0·2-3·2 % of the predicted hindgut SCFA production (e.g. 270 mmol/kg DMI for acetic acid). Predicted production and absorption of acetic, butyric and propionic acids were the highest for the high-fibre diet (P0·05). In conclusion, determined ileal and faecal SCFA concentrations represent only a small fraction of total SCFA production, and may therefore be misleading in relation to the effect of diets on SCFA production and absorption. Considerable quantities of SCFA are produced and absorbed in the hindgut of the pig by the fermentation of kiwifruit.
dc.description.publication-statusPublished
dc.format.extent1317 - 1324
dc.identifierhttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000376672200001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=c5bb3b2499afac691c2e3c1a83ef6fef
dc.identifier.citationBRITISH JOURNAL OF NUTRITION, 2016, 115 (8), pp. 1317 - 1324
dc.identifier.doi10.1017/S0007114515002883
dc.identifier.eissn1475-2662
dc.identifier.elements-id239489
dc.identifier.harvestedMassey_Dark
dc.identifier.issn0007-1145
dc.publisherCambridge University Press
dc.relation.isPartOfBRITISH JOURNAL OF NUTRITION
dc.rights© The Authors 2015
dc.subjectIn vivo digestion
dc.subjectIn vitro fermentation
dc.subjectSCFA
dc.subjectAbsorption
dc.subjectGrowing pigs
dc.subjectKiwifruit dietary fibre
dc.subject.anzsrc0702 Animal Production
dc.subject.anzsrc0908 Food Sciences
dc.subject.anzsrc1111 Nutrition and Dietetics
dc.titleKiwifruit fibre level influences the predicted production and absorption of SCFA in the hindgut of growing pigs using a combined in vivo-in vitro digestion methodology
dc.typeJournal article
pubs.notesNot known
pubs.organisational-group/Massey University
pubs.organisational-group/Massey University/College of Health
pubs.organisational-group/Massey University/Other
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