Fibre digestibility, abundance of faecal bacteria and plasma acetate concentrations in overweight adult mares

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dc.contributor.authorShepherd, Megan L.en
dc.contributor.authorPonder, Monica A.en
dc.contributor.authorBurk, A. O.en
dc.contributor.authorMilton, Stewart C.en
dc.contributor.authorSwecker, William S.en
dc.contributor.departmentFood Science and Technologyen
dc.contributor.departmentLarge Animal Clinical Sciencesen
dc.date.accessioned2016-12-08T19:06:08Zen
dc.date.available2016-12-08T19:06:08Zen
dc.date.issued2014en
dc.description.abstractThe purpose of the present study was to compare digestibility of grass hay, faecal and plasma volatile fatty acid (VFA) concentrations, and faecal bacterial abundance in overweight and moderate-condition mares. Five overweight adult mixed-breed mares and five adult mixed-breed mares in moderate condition were housed individually and limit-fed orchard grass (Dactylis glomerata) hay at 20 g/kg body weight (as fed) daily for 14 d. Forage DM and fibre digestibility were determined using AOAC methods; digestible energy was measured using bomb calorimetry; plasma and faecal VFA concentrations were determined by use of GC and MS; faecal Firmicutes, Bacteroidetes, Fibrobacter succinogenes, Ruminococcus flavefaciens and total bacteria abundance was determined by quantitative real-time PCR using previously designed phylum-specific 16S ribosomal RNA gene primers. No differences in hay digestibility, faecal VFA concentrations or faecal bacterial abundance were detected between overweight and moderate-condition mares. Mean plasma acetate concentrations were higher (P = 0·03) in overweight (1·55 (range 1·43-1·65) mmol/l) v. moderate-condition (1·39 (range 1·22-1·47) mmol/l) mares. We conclude that the higher plasma acetate in overweight mares should be further investigated as a potential link between gut microbes and obesity in horses.en
dc.description.versionPublished versionen
dc.format.extente10 - ? page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1017/jns.2014.8en
dc.identifier.urihttp://hdl.handle.net/10919/73592en
dc.identifier.volume3en
dc.language.isoenen
dc.relation.urihttp://www.ncbi.nlm.nih.gov/pubmed/25191602en
dc.rightsCreative Commons Attribution 3.0 Unporteden
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectADF, acid-detergent fibreen
dc.subjectBCS, body condition scoreen
dc.subjectBody condition scoreen
dc.subjectDE, digestible energyen
dc.subjectDMI, DM intakeen
dc.subjectDigestible energyen
dc.subjectFaecal bacteriaen
dc.subjectHorsesen
dc.subjectNDF, neutral-detergent fibreen
dc.subjectOG, orchard grassen
dc.subjectVFA, volatile fatty aciden
dc.subjectrDNA, ribosomal DNAen
dc.subjectrRNA, ribosomal RNAen
dc.titleFibre digestibility, abundance of faecal bacteria and plasma acetate concentrations in overweight adult maresen
dc.title.serialJournal of Nutritional Scienceen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciencesen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/CALS T&R Facultyen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/Food Science and Technologyen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Veterinary Medicineen
pubs.organisational-group/Virginia Tech/Veterinary Medicine/CVM T&R Facultyen
pubs.organisational-group/Virginia Tech/Veterinary Medicine/Large Animal Clinical Sciencesen

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