Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/5159
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dc.contributor.authorRoberts, J Jen
dc.contributor.authorNolan, J Ven
local.source.editorEditor(s): Pierre Cronjé and Nerida Richardsen
dc.date.accessioned2010-03-16T15:20:00Z-
dc.date.issued2009-
dc.identifier.citationRecent Advances in Animal Nutrition - Australia, v.17, p. 185-185en
dc.identifier.issn0819-4823en
dc.identifier.urihttps://hdl.handle.net/1959.11/5159-
dc.description.abstractMethane (CH₄) production by ruminants contributes to global warming and represents a loss of metabolisable energy. When ruminants ingest diets containing nitrate (NO3⁻), they release less CH₄ per unit feed digested, apparently because microbial use of H₂ to reduce NO3⁻ to nitrite (NO3⁻) and ammonia (NH3) occurs more readily under rumen conditions than the reduction of CO₂ to CH₄ (Allison and Reddy, 1984). Nitrate is also able to replace ammonia or urea as a non-protein nitrogen (N) supplement (Leng, 2008). The objective of this study was to determine gas production, pH and NO3⁻, NO₂⁻ and NH₃ concentrations in 150 mL syringes after addition of KNO3 or urea to rumen fluid from two donor sheep. Replicate syringes were prepared for each of the five treatments: NO3⁻ (16.8 or 8 mg N per 120 mL), urea (16.8 or 8 mg N per 120 mL) and the control (no additives). Rumen fluid that had been collected anaerobically and held at 39°C was mixed continuously while 60 mL aliquots thereof were distributed to each of the syringes followed by 60 mL of gas-free phosphate buffer that did not contain bicarbonate salts. Production of gas was determined from the movement of the syringe plungers while the syringes were maintained at 39°C.en
dc.languageenen
dc.publisherUniversity of New Englanden
dc.relation.ispartofRecent Advances in Animal Nutrition - Australiaen
dc.titleEffects of supplementary nitrate and urea on gas production and nitrate metabolism in rumen contents in vitroen
dc.typeConference Publicationen
dc.relation.conferenceRAAN 2009: Recent Advances in Animal Nutrition - Australiaen
dc.subject.keywordsAnimal Nutritionen
local.contributor.firstnameJ Jen
local.contributor.firstnameJ Ven
local.subject.for2008070204 Animal Nutritionen
local.subject.seo2008839802 Management of Greenhouse Gas Emissions from Animal Productionen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailjrober61@une.edu.auen
local.profile.emailjnolan@une.edu.auen
local.output.categoryE3en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20100201-171144en
local.date.conference12th - 15th July, 2009en
local.conference.placeArmidale, Australiaen
local.publisher.placeArmidale, Australiaen
local.format.startpage185en
local.format.endpage185en
local.peerreviewedYesen
local.identifier.volume17en
local.contributor.lastnameRobertsen
local.contributor.lastnameNolanen
dc.identifier.staffune-id:jrober61en
dc.identifier.staffune-id:jnolanen
local.profile.orcid0000-0001-7949-950Xen
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:5277en
dc.identifier.academiclevelAcademicen
local.title.maintitleEffects of supplementary nitrate and urea on gas production and nitrate metabolism in rumen contents in vitroen
local.output.categorydescriptionE3 Extract of Scholarly Conference Publicationen
local.relation.urlhttp://www.conferencecompany.com.au/animalnutrition/en
local.relation.urlhttp://www.conferencecompany.com.au/animalnutrition/RAAN_Full_Program.pdfen
local.conference.detailsRAAN 2009: Recent Advances in Animal Nutrition - Australia, Armidale, Australia, 12th - 15th July, 2009en
local.search.authorRoberts, J Jen
local.search.authorNolan, J Ven
local.uneassociationUnknownen
local.conference.venueUniversity of New Englanden
local.year.published2009en
local.date.start2009-07-12-
local.date.end2009-07-15-
Appears in Collections:Conference Publication
School of Environmental and Rural Science
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