Effect of Divergent Feeding Regimes During Early Life on the Rumen Microbiota in Calves

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dc.citation.volume12
dc.contributor.authorCristobal-Carballo O
dc.contributor.authorMcCoard SA
dc.contributor.authorCookson AL
dc.contributor.authorLaven RA
dc.contributor.authorGanesh S
dc.contributor.authorLewis SJ
dc.contributor.authorMuetzel S
dc.contributor.editorMorgavi DP
dc.coverage.spatialSwitzerland
dc.date.accessioned2024-02-01T19:42:38Z
dc.date.accessioned2024-07-25T06:39:07Z
dc.date.available2021-10-20
dc.date.available2024-02-01T19:42:38Z
dc.date.available2024-07-25T06:39:07Z
dc.date.issued2021-10-20
dc.description.abstractThe objective of this study was to determine whether divergent feeding regimes during the first 41 weeks of the life of a calf are associated with long-term changes in the rumen microbiota and the associated fermentation end-products. Twenty-four calves (9 ± 5 days of age) were arranged in a 2 × 2 factorial design with two divergent treatments across three dietary phases. In phase 1 (P01), calves were offered a low-milk volume/concentrate starter diet with early weaning (CO) or high-milk volume/pasture diet and late weaning (FO). In phase 2 (P02), calves from both groups were randomly allocated to either high-quality (HQ) or low-quality (LQ) pasture grazing groups. In phase 3 (P03), calves were randomly allocated to one of two grazing groups and offered the same pasture-only diet. During each dietary phase, methane (CH4) and hydrogen (H2) emissions and dry matter intake (DMI) were measured in respiration chambers, and rumen samples for the evaluation of microbiota and short-chain fatty acid (SCFA) characterizations were collected. In P01, CO calves had a higher solid feed intake but a lower CH4 yield (yCH4) and acetate:propionate ratio (A:P) compared with FO calves. The ruminal bacterial community had lower proportions of cellulolytic bacteria in CO than FO calves. The archaeal community was dominated by Methanobrevibacter boviskoreani in CO calves and by Mbb. gottschalkii in FO calves. These differences, however, did not persist into P02. Calves offered HQ pastures had greater DMI and lower A:P ratio than calves offered LQ pastures, but yCH4 was similar between groups. The cellulolytic bacteria had lower proportions in HQ than LQ calves. In all groups, the archaeal community was dominated by Mbb. gottschalkii. No treatment interactions were observed in P02. In P03, all calves had similar DMI, CH4 and H2 emissions, SCFA proportions, and microbial compositions, and no interactions with previous treatments were observed. These results indicate that the rumen microbiota and associated fermentation end-products are driven by the diet consumed at the time of sampling and that previous dietary interventions do not lead to a detectable long-term microbial imprint or changes in rumen function.
dc.description.confidentialfalse
dc.format.pagination711040-
dc.identifier.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/34745024
dc.identifier.citationCristobal-Carballo O, McCoard SA, Cookson AL, Laven RA, Ganesh S, Lewis SJ, Muetzel S. (2021). Effect of Divergent Feeding Regimes During Early Life on the Rumen Microbiota in Calves.. Front Microbiol. 12. (pp. 711040-).
dc.identifier.doi10.3389/fmicb.2021.711040
dc.identifier.eissn1664-302X
dc.identifier.elements-typejournal-article
dc.identifier.issn1664-302X
dc.identifier.numberARTN 711040
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/70615
dc.languageeng
dc.publisherFrontiers Media S.A.
dc.publisher.urihttps://www.frontiersin.org/articles/10.3389/fmicb.2021.711040/full
dc.relation.isPartOfFront Microbiol
dc.rights(c) The author/sen
dc.rights.licenseCC BY 4.0en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectcalves
dc.subjectdietary transitions
dc.subjectearly-life
dc.subjectenteric emissions
dc.subjectfermentation
dc.subjectmicrobial community
dc.titleEffect of Divergent Feeding Regimes During Early Life on the Rumen Microbiota in Calves
dc.typeJournal article
pubs.elements-id449565
pubs.organisational-groupOther
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