Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/16858
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dc.contributor.authorBrown, Danielen
dc.contributor.authorSavage, Darrylen
dc.contributor.authorHinch, Geoffreyen
dc.contributor.authorHatcher, Sueen
dc.date.accessioned2015-03-31T15:32:00Z
dc.date.issued2015en
dc.identifier.citationAnimal Production Science, 55(4), p. 427-436en
dc.identifier.issn1836-5787en
dc.identifier.issn1836-0939en
dc.identifier.urihttps://hdl.handle.net/1959.11/16858en
dc.description.abstractLiveweight is a widely accepted proxy for the energy status of sheep at a particular point in time. Fleece- and conceptus-free ewe liveweight and liveweight change influence the productivity of the ewe and optimisation may increase whole-farm profitability. Despite this, it is uncommon for producers to monitor ewe liveweight regularly and objectively. The current review discusses why ewe liveweight is important, identifies and assesses available technologies for monitoring sheep liveweight, and highlights future research priorities. The common theme in the literature is that while there are options that could possibly be used to monitor the liveweight of sheep in extensive grazing systems, few of them offer realistic solutions, especially in regard to timeliness of data collection. Thermal and stereo imaging, body measurements and plasma hormonal assays are unlikely to be commercially viable, while visual assessment, although widely practised, offers a surprisingly poor indication of sheep liveweight. Alternatively, assessment of body condition (condition scoring) or fat (fat scoring) offers viable methods of assessing sheep energy status; however, like conventional static weighing, they are performed infrequently and therefore contribute little to the day-to-day tactical management of sheep flocks. Walk-over weighing systems offer a feasible alternative for regular monitoring of sheep liveweight. Such systems are fully automated, and may be operated remotely. Currently, there are challenges associated with monitoring the liveweight of individual animals using such systems and hence there is little commercial opportunity for individual animal management. Mob-based walk-over weighing, which generates flock average liveweight estimates, offers greater potential in the short term, although the technology would benefit from further research and development, primarily to increase the frequency and repeatability of liveweight capture.en
dc.languageenen
dc.publisherCSIRO Publishingen
dc.relation.ispartofAnimal Production Scienceen
dc.titleMonitoring liveweight in sheep is a valuable management strategy: a review of available technologiesen
dc.typeJournal Articleen
dc.identifier.doi10.1071/AN13274en
dc.subject.keywordsAnimal Growth and Developmenten
dc.subject.keywordsAnimal Managementen
local.contributor.firstnameDanielen
local.contributor.firstnameDarrylen
local.contributor.firstnameGeoffreyen
local.contributor.firstnameSueen
local.subject.for2008070203 Animal Managementen
local.subject.for2008070202 Animal Growth and Developmenten
local.subject.seo2008830310 Sheep - Meaten
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emaildbrown2@une.edu.auen
local.profile.emaildsavage2@une.edu.auen
local.profile.emailghinch@une.edu.auen
local.profile.emailsue.hatcher@dpi.nsw.gov.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20140416-08083en
local.publisher.placeAustraliaen
local.format.startpage427en
local.format.endpage436en
local.peerreviewedYesen
local.identifier.volume55en
local.identifier.issue4en
local.title.subtitlea review of available technologiesen
local.contributor.lastnameBrownen
local.contributor.lastnameSavageen
local.contributor.lastnameHinchen
local.contributor.lastnameHatcheren
dc.identifier.staffune-id:dbrown2en
dc.identifier.staffune-id:dsavage2en
dc.identifier.staffune-id:ghinchen
local.profile.orcid0000-0003-4731-865Xen
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:17092en
local.identifier.handlehttps://hdl.handle.net/1959.11/16858en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleMonitoring liveweight in sheep is a valuable management strategyen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.description.statisticsepubsVisitors: 301<br />Views: 344<br />Downloads: 0en
local.search.authorBrown, Danielen
local.search.authorSavage, Darrylen
local.search.authorHinch, Geoffreyen
local.search.authorHatcher, Sueen
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