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  • Phytogenic additives to decrease in vitro ruminal methanogenesis.

    Author(s) : Bodas, R.López, S.Fernández, M.García-González, R.Wallace, R. J.González, J. S.

    Author Affiliation : Dpto. Producción Animal, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain.

    Editors : Papachristou, T. G.Parissi, Z. M.Ben Salem, H.Morand-Fehr, P.

    Journal article; Conference paper : Options Méditerranéennes. Série A, Séminaires Méditerranéens 2009 No.85 pp.279-283 ref.28

    Conference Title : Nutritional and foraging ecology of sheep and goats. Proceedings of the 12th Seminar of the Sub-Network on Nutrition of the FAO-CIHEAM Cooperative Research and Development Network on Sheep and Goats, Thessaloniki, Greece, 11-13 October 2007.

    Abstract : Six plants (Carduus pycnocephaluscarduus pycnocephalusSubject Category: Organism Names
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    , Populus tremulapopulus tremulaSubject Category: Organism Names
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    , Prunus aviumprunus aviumSubject Category: Organism Names
    see more details
    , Quercus roburquercus roburSubject Category: Organism Names
    see more details
    , RheumrheumSubject Category: Organism Names
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    nobile
    and Salix capreasalix capreaSubject Category: Organism Names
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    ) were tested to determine their effects as feed additivesfeed additivesSubject Category: Commodities and Products
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    to decrease ruminal methanogenesis in vitro. The plants had been selected in a previous screening assay in which a collection of 450 plant species had been tested. Sheep fed alfalfa hay were used as donors for rumen fluid. Batch cultures were performed in 120 ml serum bottles, using 10 ml strained rumen, 40 ml medium, 500 mg DM substrate (50% alfalfa hay, 40% grass hay and 10% barley) and 50 mg DM freeze-dried ground plant additive. After 24 h of incubation, gas production, methane and volatile fatty acidsvolatile fatty acidsSubject Category: Chemicals and Chemical Groups
    see more details
    (VFA) production, propionate to acetate ratio, in vitro DM digestibility, pHphSubject Category: Properties
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    and fermentation efficiency were measured. All the plants tested reduced methane productionmethane productionSubject Category: Miscellaneous
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    (P<0.001) in relation to the control (no plant added). P. avium and Q. robur caused a decrease in propionate production and in propionate to acetate ratio (P<0.001), whereas S. caprea reduced propionate production (P<0.001). Gas production, pH and fermentation efficiency were not affected by any of the plants (P>0.05). Among them, R. nobile was particularly promising since it showed the greatest and most consistent effect on methane production (-16% in relation to the control, P<0.001). Moreover, it enhanced ruminal fermentation, stimulating DM digestibility (P<0.05) and VFA production (P<0.001) and increasing propionate to acetate ratio (P<0.001). In conclusion, among the plant species evaluated, Rheum nobile showed the most consistent effects for decreasing methane production without adversely affecting other parameters of rumen fermentationrumen fermentationSubject Category: Miscellaneous
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    .

    ISSN : 1016-121X

    Record Number : 20103102247

    Publisher : Centre International de Hautes Etudes Agronomiques Méditerranéennes

    Location of publication : Montpellier

    Country of publication : France

    Language of text : English

    Language of summary : French

    Indexing terms for this abstract:

    Organism descriptor(s) : Carduus pycnocephaluscarduus pycnocephalusSubject Category: Organism Names
    see more details
    , plantsplantsSubject Category: Organism Names
    see more details
    , PopuluspopulusSubject Category: Organism Names
    see more details
    , Populus tremulapopulus tremulaSubject Category: Organism Names
    see more details
    , PrunusprunusSubject Category: Organism Names
    see more details
    , Prunus aviumprunus aviumSubject Category: Organism Names
    see more details
    , QuercusquercusSubject Category: Organism Names
    see more details
    , Quercus roburquercus roburSubject Category: Organism Names
    see more details
    , RheumrheumSubject Category: Organism Names
    see more details
    , SalixsalixSubject Category: Organism Names
    see more details
    , Salix capreasalix capreaSubject Category: Organism Names
    see more details

    Descriptor(s) : acetatesacetatesSubject Category: Chemicals and Chemical Groups
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    , cherriescherriesSubject Category: Commodities and Products
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    , feed additivesfeed additivesSubject Category: Commodities and Products
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    , in vitro digestibilityin vitro digestibilitySubject Category: Properties
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    , methanemethaneSubject Category: Chemicals and Chemical Groups
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    , methane productionmethane productionSubject Category: Miscellaneous
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    , pHphSubject Category: Properties
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    , poplarspoplarsSubject Category: Organism Groups
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    , propionatespropionatesSubject Category: Chemicals and Chemical Groups
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    , rumenrumenSubject Category: Anatomical and Morphological Structures
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    , rumen fermentationrumen fermentationSubject Category: Miscellaneous
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    , treestreesSubject Category: Organism Groups
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    , volatile fatty acidsvolatile fatty acidsSubject Category: Chemicals and Chemical Groups
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    , woody plantswoody plantsSubject Category: Organism Groups
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    , willowswillowsSubject Category: Organism Groups
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    Identifier(s) : digestibility in vitro, English oak, goat willow, hydrogen ion concentration, oaks, pedunculate oak, phytogens, potential of hydrogen, Rheum nobile

    Broader term(s) : CarduuscarduusSubject Category: Organism Names
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    , AsteraceaeasteraceaeSubject Category: Organism Names
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    , AsteralesasteralesSubject Category: Organism Names
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    , eudicotseudicotsSubject Category: Organism Names
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    , angiospermsangiospermsSubject Category: Organism Names
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    , SpermatophytaspermatophytaSubject Category: Organism Names
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    , plantsplantsSubject Category: Organism Names
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    , eukaryoteseukaryotesSubject Category: Organism Names
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    , SalicaceaesalicaceaeSubject Category: Organism Names
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    , MalpighialesmalpighialesSubject Category: Organism Names
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    , PopuluspopulusSubject Category: Organism Names
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    , RosaceaerosaceaeSubject Category: Organism Names
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    , RosalesrosalesSubject Category: Organism Names
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    , PrunusprunusSubject Category: Organism Names
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    , FagaceaefagaceaeSubject Category: Organism Names
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    , FagalesfagalesSubject Category: Organism Names
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    , QuercusquercusSubject Category: Organism Names
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    , PolygonaceaepolygonaceaeSubject Category: Organism Names
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    , CaryophyllalescaryophyllalesSubject Category: Organism Names
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    , SalixsalixSubject Category: Organism Names
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