effects of flavonoids on rumen fermentation activity, methane production, and microbial population

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ID: 161282
2013
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Abstract
This research was carried out to evaluate the effects of flavone, myricetin, naringin, catechin, rutin, quercetin, and kaempferol at the concentration of 4.5% of the substrate (dry matter basis) on the rumen microbial activity in vitro. Mixture of guinea grass and concentrate (60 : 40) was used as the substrate. The results showed that all the flavonoids except naringin and quercetin significantly () decreased the dry matter degradability. The gas production significantly () decreased by flavone, myricetin, and kaempferol, whereas naringin, rutin, and quercetin significantly () increased the gas production. The flavonoids suppressed methane production significantly (). The total VFA concentration significantly () decreased in the presence of flavone, myricetin, and kaempferol. All flavonoids except naringin and quercetin significantly () reduced the carboxymethyl cellulase, filter paperase, xylanase, and β-glucosidase activities, purine content, and the efficiency of microbial protein synthesis. Flavone, myricetin, catechin, rutin, and kaempferol significantly () reduced the population of rumen microbes. Total populations of protozoa and methanogens were significantly () suppressed by naringin and quercetin. The results of this research demonstrated that naringin and quercetin at the concentration of 4.5% of the substrate (dry matter basis) were potential metabolites to suppress methane production without any negative effects on rumen microbial fermentation.
Reference Key
oskoueian2013biomedeffects Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Ehsan Oskoueian, Norhani Abdullah, Armin Oskoueian
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Journal spectrochimica acta - part a: molecular and biomolecular spectroscopy
Year 2013
DOI
10.1155/2013/349129
URL
http://dx.doi.org/10.1155/2013/349129
Keywords
Medicine

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