Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/7208
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dc.contributor.authorDoyle, Rebecca Eliseen
dc.contributor.authorFisher, Andrew Den
dc.contributor.authorHinch, Geoffreyen
dc.contributor.authorBoissy, Alainen
dc.contributor.authorLee, Carolineen
dc.date.accessioned2011-04-27T12:28:00Z
dc.date.issued2010en
dc.identifier.citationApplied Animal Behaviour Science, 122(1), p. 28-34en
dc.identifier.issn1872-9045en
dc.identifier.issn0168-1591en
dc.identifier.urihttps://hdl.handle.net/1959.11/7208en
dc.description.abstractThe study of judgement biases in animals has attracted interest as a way of potentially measuring emotional states by being able to detect pessimistic-like or optimistic-like evaluations of their environment. While judgement biases have been successfully identified in laboratory species, no such research has been reported in livestock species. Twenty ewes were trained to learn a spatial location task that required a go/no-go response according to the location of a bucket in a pen. One bucket location was associated with a feed reward, and the other associated with a negative reinforcer (no food and the presentation of a dog). Ten sheep were then subjected to a 6 h restraint and isolation stress (RIS), for three consecutive days. Following RIS on each day, all sheep were tested for biases in judgement by measuring their response to three previously unseen bucket locations and the learnt locations. Serum cortisol, haematological parameters, and behaviour of the sheep in an open field test were also recorded. Restrained and isolated sheep were more likely to approach the ambiguous bucket locations compared to control sheep (P = 0.008), suggesting RIS-treated animals had a more optimistic-like judgement bias. This was despite serum cortisol concentrations showing that sheep were highly stressed by the RIS treatment (P = 0.019). This finding provides evidence that it is possible to measure judgement biases in a livestock species. When released from RIS the sheep may have had a more positive emotional state, or a lesser perception of risk, than that exhibited by control sheep.en
dc.languageenen
dc.publisherElsevier BVen
dc.relation.ispartofApplied Animal Behaviour Scienceen
dc.titleRelease from restraint generates a positive judgement bias in sheepen
dc.typeJournal Articleen
dc.identifier.doi10.1016/j.applanim.2009.11.003en
dc.subject.keywordsAnimal Managementen
dc.subject.keywordsHumane Animal Treatmenten
dc.subject.keywordsAnimal Productionen
local.contributor.firstnameRebecca Eliseen
local.contributor.firstnameAndrew Den
local.contributor.firstnameGeoffreyen
local.contributor.firstnameAlainen
local.contributor.firstnameCarolineen
local.subject.for2008070203 Animal Managementen
local.subject.for2008070207 Humane Animal Treatmenten
local.subject.for2008070299 Animal Production not elsewhere classifieden
local.subject.seo2008830310 Sheep - Meaten
local.subject.seo2008830399 Livestock Raising not elsewhere classifieden
local.subject.seo2008830311 Sheep - Woolen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailrdoyle7@une.edu.auen
local.profile.emailghinch@une.edu.auen
local.profile.emailclee31@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20110329-11558en
local.publisher.placeAmsterdam, The Netherlandsen
local.format.startpage28en
local.format.endpage34en
local.peerreviewedYesen
local.identifier.volume122en
local.identifier.issue1en
local.contributor.lastnameDoyleen
local.contributor.lastnameFisheren
local.contributor.lastnameHinchen
local.contributor.lastnameBoissyen
local.contributor.lastnameLeeen
dc.identifier.staffune-id:rdoyle7en
dc.identifier.staffune-id:ghinchen
dc.identifier.staffune-id:clee31en
local.profile.orcid0000-0003-4731-865Xen
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:7374en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleRelease from restraint generates a positive judgement bias in sheepen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.description.statisticsepubsVisitors: 359<br />Views: 360<br />Downloads: 0en
local.search.authorDoyle, Rebecca Eliseen
local.search.authorFisher, Andrew Den
local.search.authorHinch, Geoffreyen
local.search.authorBoissy, Alainen
local.search.authorLee, Carolineen
Appears in Collections:Journal Article
School of Environmental and Rural Science
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