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Impact of the intensity of milk production on ammonia and greenhouse gas emissions in Portuguese cattle farms

2015-12Journal article Open access
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dc.contributor.authorPereira, J.
dc.contributor.authorTrindade, H.
dc.date.accessioned2015-12-03T10:59:13Z
dc.date.available2015-12-03T10:59:13Z
dc.date.issued2015-12
dc.description.abstractThe aim of this study was evaluate the relationship between the intensity of milk production for a wide range of Portuguese commercial cattle farms and NH3 and greenhouse gas (GHG) emissions from manure management and enteric fermentation. A survey was carried out at 1471 commercial dairy cattle farms (Holstein-Friesian) and the NH3, N2O and CH4 emissions at each stage of manure management were estimated as well as CH4 losses from enteric fermentation. Gaseous emissions were estimated by a mass flow approach and following the recommendations of IPCC guidelines. The manure management and enteric fermentation in a typical Portuguese cattle farm contributes with 7.5±0.15 g N/L milk produced as NH3 and 1.2±0.22 kg CO2 equivalent per litre of milk as GHG. Increasing milk production will significantly reduce NH3 and GHG emissions per litre of milk produced. It can be concluded that a win-win strategy for reducing NH3 and GHG emissions from dairy cattle farms will be the increase of milk production on these farms. This goal can be achieved by implementing animal breeding programs and improving feed efficiency in order to increase productivity.pt_PT
dc.identifier.citationPereira J., Trindade H., 2015. Impact of the intensity of milk production on ammonia and greenhouse gas emissions in Portuguese cattle farms. Spanish Journal of Agricultural Research, Volume 13 (4), e06SC 05, 7 pages. doi: 10.5424/sjar/2015134-8176pt_PT
dc.identifier.doi10.5424/sjar/2015134-8176pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.19/2984
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectdairy cattlept_PT
dc.subjectmanure managementpt_PT
dc.subjectenteric fermentationpt_PT
dc.subjectgaseous emissionspt_PT
dc.titleImpact of the intensity of milk production on ammonia and greenhouse gas emissions in Portuguese cattle farmspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue13pt_PT
oaire.citation.startPagee06SC05 7 pagespt_PT
oaire.citation.titleSpanish Journal of Agricultural Researchpt_PT
oaire.citation.volume4pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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