In Vitro Fermentation of Browsable Native Shrubs in New Zealand

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dc.citation.issue16
dc.citation.volume11
dc.contributor.authorWangui JC
dc.contributor.authorMillner JP
dc.contributor.authorKenyon PR
dc.contributor.authorTozer PR
dc.contributor.authorMorel PCH
dc.contributor.authorPain SJ
dc.coverage.spatialSwitzerland
dc.date.accessioned2024-01-16T21:56:54Z
dc.date.accessioned2024-07-25T06:50:06Z
dc.date.available2022-08-10
dc.date.available2024-01-16T21:56:54Z
dc.date.available2024-07-25T06:50:06Z
dc.date.issued2022-08-10
dc.description.abstractInformation on the nutritive value and in vitro fermentation characteristics of native shrubs in New Zealand is scant. This is despite their potential as alternatives to exotic trees and shrubs for supplementary fodder, and their mitigation of greenhouse gases and soil erosion on hill-country sheep and beef farms. The objectives of this study were to measure the in vitro fermentation gas production, predict the parameters of the in vitro fermentation kinetics and estimate the in vitro fermentation of volatile fatty acids (VFA), microbial biomass (MBM), and greenhouse gases of four native shrubs ( Coprosma robusta, Griselinia littoralis, Hoheria populnea, and Pittosporum crassifolium) and an exotic fodder tree species, Salix schwerinii. The total in vitro gas production was higher (p < 0.05) for the natives than for the S. schwerinii. A prediction using the single-pool model resulted in biologically incorrect negative in vitro total gas production from the immediately soluble fraction of the native shrubs. However, the dual pool model better predicted the in vitro total gas production and was in alignment with the measured in vitro fermentation end products. The in vitro VFA and greenhouse gas production from the fermentation of leaf and stem material was higher (p < 0.05), and the MBM lower (p < 0.05), for the native shrubs compared to the S. schwerinii. The lower in vitro total gas production, VFA, and greenhouse gases production and higher MBM of the S. schwerinii may be explained by the presence of condensed tannins (CT), although this was not measured and requires further study. In conclusion, the results from this study suggest that when consumed by ruminant livestock, browsable native shrubs can provide adequate energy and microbial protein, and that greenhouse-gas production from these species is within the ranges reported for typical New Zealand pastures.
dc.format.pagination2085-
dc.identifier.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/36015390
dc.identifier.citationWangui JC, Millner JP, Kenyon PR, Tozer PR, Morel PCH, Pain SJ. (2022). In Vitro Fermentation of Browsable Native Shrubs in New Zealand.. Plants (Basel). 11. 16. (pp. 2085-).
dc.identifier.doi10.3390/plants11162085
dc.identifier.eissn2223-7747
dc.identifier.elements-typejournal-article
dc.identifier.issn2223-7747
dc.identifier.piiplants11162085
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/70974
dc.languageeng
dc.publisherMDPI (Basel, Switzerland)
dc.relation.isPartOfPlants (Basel)
dc.rights(c) 2022 The Author/s
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectgreenhouse gases
dc.subjecthill country
dc.subjectin vitro fermentation
dc.subjectnative shrubs
dc.subjectvolatile fatty acids
dc.titleIn Vitro Fermentation of Browsable Native Shrubs in New Zealand
dc.typeJournal article
pubs.elements-id455496
pubs.organisational-groupOther
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