Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/20136
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dc.contributor.authorRefshauge, Gen
dc.contributor.authorBrien, F Den
dc.contributor.authorHinch, Geoffreyen
dc.contributor.authorvan de Ven, Ren
dc.date.accessioned2017-03-08T12:40:00Z
dc.date.issued2016en
dc.identifier.citationAnimal Production Science, 56(4), p. 726-735en
dc.identifier.issn1836-5787en
dc.identifier.issn1836-0939en
dc.identifier.urihttps://hdl.handle.net/1959.11/20136en
dc.description.abstractThe objective of the present study was to examine the factors associated with the death of neonatal lambs. Postmortem autopsy data were collected from 3198 newborn lambs in the Sheep CRCs Information Nucleus Flock situated in various environments throughout southern Australia. The proportion dying by category from highest to lowest was starvation-mismothering (25%), stillbirth (21%), birth injury (18%), dystocia (9%), death in utero-prematurity (10%), predation (7%), cold exposure (5%), undiagnosed (4%), infection (1%) or misadventure (1%). Factors best explaining the probability of lambs falling into a death category included both birth type and birthweight for dystocia, stillbirth, starvation-mismothering and death in utero-prematurity. The probability of a lamb falling into any category was predicted at the mean birthweight, within birth type. Single-born lambs were more likely to die from dystocia and stillbirth, while twin lambs were more likely to die from birth injury, starvation-mismothering or from undiagnosed causes. Triplet lambs were more likely to die from starvation-mismothering or death in utero-prematurity. Sire type (Merino, maternal or terminal) did not affect the proportions of lambs within any category. The proportions lost to each cause of death were largely consistent among locations, despite the rate of death varying. Dystocia, stillbirth and birth injury, as evidenced by the presence of oedema around the head and neck or by lesions of the central nervous system, accounted for 48% of autopsied lambs. We conclude that for improvements to occur in the rates of lamb survival, the Australian sheep industry must focus on minimising losses due to dystocia, stillbirth, birth injury and starvation.en
dc.languageenen
dc.publisherCSIRO Publishingen
dc.relation.ispartofAnimal Production Scienceen
dc.titleNeonatal lamb mortality: factors associated with the death of Australian lambsen
dc.typeJournal Articleen
dc.identifier.doi10.1071/AN15121en
dc.subject.keywordsAnimal Reproductionen
local.contributor.firstnameGen
local.contributor.firstnameF Den
local.contributor.firstnameGeoffreyen
local.contributor.firstnameRen
local.subject.for2008070206 Animal Reproductionen
local.subject.seo2008830310 Sheep - Meaten
local.subject.seo2008830311 Sheep - Woolen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailghinch@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-chute-20161114-134424en
local.publisher.placeAustraliaen
local.format.startpage726en
local.format.endpage735en
local.peerreviewedYesen
local.identifier.volume56en
local.identifier.issue4en
local.title.subtitlefactors associated with the death of Australian lambsen
local.contributor.lastnameRefshaugeen
local.contributor.lastnameBrienen
local.contributor.lastnameHinchen
local.contributor.lastnamevan de Venen
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:20334en
dc.identifier.academiclevelAcademicen
local.title.maintitleNeonatal lamb mortalityen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.description.statisticsepubsVisitors: 31<br />Views: 31<br />Downloads: 0en
local.search.authorRefshauge, Gen
local.search.authorBrien, F Den
local.search.authorHinch, Geoffreyen
local.search.authorvan de Ven, Ren
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