Characterization of the ruminal fermentation and microbiome in lambs supplemented with hydrolysable and condensed tannins

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dc.check.date2019-04-10
dc.check.infoAccess to this article is restricted until 12 months after publication by request of the publisher.en
dc.contributor.authorSalami, Saheed A.
dc.contributor.authorValenti, Bernardo
dc.contributor.authorBella, Marco
dc.contributor.authorO'Grady, Michael N.
dc.contributor.authorLuciano, Giuseppe
dc.contributor.authorKerry, Joseph P.
dc.contributor.authorJones, Eleanor
dc.contributor.authorPriolo, Alessandro
dc.contributor.authorNewbold, Charles J.
dc.contributor.funderEuropean Commissionen
dc.date.accessioned2018-04-17T12:02:30Z
dc.date.available2018-04-17T12:02:30Z
dc.date.issued2018-04-10
dc.date.updated2018-04-17T11:24:40Z
dc.description.abstractThis study characterised the response of ruminal fermentation and the rumen microbiome in lambs fed commercial vegetal sources of hydrolysable tannins (HT) and condensed tannins (CT). Forty-four lambs (19.56 ± 2.06 kg) were randomly assigned to either a concentrate diet (CON, n = 8) or CON supplemented with 4% of two HT [chestnut (Castanea sativa, HT-c) and tara (Caesalpinia spinosa, HT-t)] and CT [mimosa (Acacia negra, CT-m) and gambier (Uncaria gambir, CT-g)] extracts (all, n = 9) for 75 days pre-slaughter. Tannin supplementation did not influence ruminal fermentation traits. Quantitative PCR demonstrated that tannins did not affect the absolute abundance of ruminal bacteria or fungi. However, CT-m (-12.8%) and CT-g (-11.5%) significantly reduced the abundance of methanogens while HT-t (-20.7%) and CT-g (-20.8%) inhibited protozoal abundance. Ribosomal amplicon sequencing revealed that tannins caused changes in the phylogenetic structure of the bacterial and methanogen communities. Tannins inhibited the fibrolytic bacterium, Fibrobacter and tended to suppress the methanogen genus, Methanosphaera. Results demonstrated that both HT and CT sources could impact the ruminal microbiome when supplemented at 4% inclusion level. HT-t, CT-m and CT-g extracts displayed specific antimicrobial activity against methanogens and protozoa without compromising ruminal fermentation in a long-term feeding trial.en
dc.description.sponsorshipEuropean Commission (Agricultural Transformation by Innovation (AGTRAIN) Erasmus Mundus Joint Doctorate Program)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationSalami, S. A., Valenti, B., Bella, M., O'Grady, M. N., Luciano, G., Kerry, J. P., Jones, E., Priolo, A. and Newbold, C. J. (2018) 'Characterization of the ruminal fermentation and microbiome in lambs supplemented with hydrolysable and condensed tannins', FEMS Microbiology Ecology. doi:10.1093/femsec/fiy061en
dc.identifier.doi10.1093/femsec/fiy061
dc.identifier.issn0168-6496
dc.identifier.issn1574-6941
dc.identifier.journaltitleFEMS Microbiology Ecologyen
dc.identifier.urihttps://hdl.handle.net/10468/5792
dc.language.isoenen
dc.publisherOxford University Press on behalf of Federation of European Microbiological Societiesen
dc.rights© 2018, FEMS. All rights reserved. This is a pre-copyedited, author-produced version of an article accepted for publication in FEMS Microbiology Ecology, following peer review. The version of record [Salami, S. A., Valenti, B., Bella, M., O'Grady, M. N., Luciano, G., Kerry, J. P., Jones, E., Priolo, A. and Newbold, C. J. (2018) 'Characterization of the ruminal fermentation and microbiome in lambs supplemented with hydrolysable and condensed tannins', FEMS Microbiology Ecology. doi:10.1093/femsec/fiy061] is available online at: https://doi.org/10.1093/femsec/fiy061en
dc.subjectTanninsen
dc.subjectRuminal fermentationen
dc.subjectMicrobiomeen
dc.subjectBacteriaen
dc.subjectMethanogensen
dc.subjectMetagenomicsen
dc.titleCharacterization of the ruminal fermentation and microbiome in lambs supplemented with hydrolysable and condensed tanninsen
dc.typeArticle (peer-reviewed)en
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