Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/22766
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dc.contributor.authorCampbell, Danaen
dc.contributor.authorHinch, Geoffreyen
dc.contributor.authorDowning, Jeff Aen
dc.contributor.authorLee, Carolineen
dc.date.accessioned2018-04-03T14:10:00Z-
dc.date.issued2017-
dc.identifier.citationAnimal, 11(6), p. 1036-1045en
dc.identifier.issn1751-732Xen
dc.identifier.issn1751-7311en
dc.identifier.urihttps://hdl.handle.net/1959.11/22766-
dc.description.abstractFree-range laying hen systems are increasing within Australia and research is needed to determine optimal outdoor stocking densities. Six small (n=150 hens) experimental flocks of ISA Brown laying hens were housed with access to ranges simulating one of three outdoor stocking densities with two pen replicates per density: 2000 hens/ha, 10 000 hens/ha or 20 000 hens/ha. Birds were provided daily range access from 21 to 36 weeks of age and the range usage of 50% of hens was tracked using radio-frequency identification technology. Throughout the study, basic external health assessments following a modified version of the Welfare Quality® protocol showed most birds were in visibly good condition (although keel damage was increasingly present with age) with few differences between stocking densities. Toenail length at 36 weeks of age was negatively correlated with hours spent ranging for all pens of birds (all r⩽−0.23, P⩽0.04). At 23 weeks of age, there were no differences between outdoor stocking densities in albumen corticosterone concentrations (P=0.44). At 35 weeks of age, density effects were significant (P<0.001) where the eggs from hens in the highest outdoor stocking density showed the highest albumen corticosterone concentrations, although eggs from hens in the 10 000 hens/ha density showed the lowest concentrations (P<0.017). Behavioural observations of hens both on the range and indoors showed more dust bathing and foraging (scratching followed by ground-pecking) was performed outdoors, but more resting indoors (all P<0.001). Hens from the 2000 hens/ha densities showed the least foraging on the range but the most resting outdoors, with hens from the 20 000 hens/ha densities showing the least amount of resting outdoors (all P<0.017). Proportions of dust bathing outdoors tended to differ between the stocking densities (P=0.08). For each of the health and behavioural measures there were differences between pen replicates within stocking densities. These data show outdoor stocking density has some effects on hen welfare, and it appears that consideration of both individual and group-level behaviour is necessary when developing optimal stocking density guidelines and free-range system management practices.en
dc.languageenen
dc.publisherCambridge University Pressen
dc.relation.ispartofAnimalen
dc.titleOutdoor stocking density in free-range laying hens: Effects on behaviour and welfareen
dc.typeJournal Articleen
dc.identifier.doi10.1017/S1751731116002342en
dcterms.accessRightsGolden
dc.subject.keywordsAnimal Managementen
local.contributor.firstnameDanaen
local.contributor.firstnameGeoffreyen
local.contributor.firstnameJeff Aen
local.contributor.firstnameCarolineen
local.subject.for2008070203 Animal Managementen
local.subject.seo2008830501 Eggsen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emaildcampb38@une.edu.auen
local.profile.emailghinch@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20180209-150329en
local.publisher.placeUnited Kingdomen
local.format.startpage1036en
local.format.endpage1045en
local.identifier.scopusid84994591240en
local.peerreviewedYesen
local.identifier.volume11en
local.identifier.issue6en
local.title.subtitleEffects on behaviour and welfareen
local.access.fulltextYesen
local.contributor.lastnameCampbellen
local.contributor.lastnameHinchen
local.contributor.lastnameDowningen
local.contributor.lastnameLeeen
dc.identifier.staffune-id:dcampb38en
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:22950en
local.identifier.handlehttps://hdl.handle.net/1959.11/22766en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleOutdoor stocking density in free-range laying hensen
local.relation.fundingsourcenote/Poultry CRC 1.5.6en
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorCampbell, Danaen
local.search.authorHinch, Geoffreyen
local.search.authorDowning, Jeff Aen
local.search.authorLee, Carolineen
local.uneassociationUnknownen
local.year.published2017en
local.fileurl.closedpublishedhttps://rune.une.edu.au/web/retrieve/1524b8d8-ce8d-44bd-ac01-7b2594e3887den
local.subject.for2020300302 Animal managementen
local.subject.seo2020100601 Eggsen
Appears in Collections:Journal Article
School of Environmental and Rural Science
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