Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/20081
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dc.contributor.authorSamiullah, Samiullahen
dc.contributor.authorRoberts, Julie Ren
dc.contributor.authorChousalkar, Kapilen
dc.date.accessioned2017-02-22T13:46:00Z-
dc.date.issued2016-
dc.identifier.citationAvian Pathology, 45(5), p. 552-558en
dc.identifier.issn1465-3338en
dc.identifier.issn0307-9457en
dc.identifier.urihttps://hdl.handle.net/1959.11/20081-
dc.description.abstractThe aim of the current study was to assess any effect of wild and vaccine Australian infectious bronchitis virus (IBV) strains on shell colour in brown-shelled eggs. In Experiment 1, eggs were collected from day 1 to day 13 post-inoculation (p.i.) from unvaccinated laying hens challenged with IBV wild strains T and N1/88 and from a negative control group of hens. In Experiment 2, eggs were collected from 2 to 22 days p.i. from unvaccinated and vaccinated laying hens challenged with either a wild or a vaccine strain of IBV. In Experiment 1, there was a significant effect (P < 0.05) of day p.i. and of viral strain on shell reflectivity, L* and protoporphyrin IX (PP IX) in eggshells, with and without cuticle. The mean PP IX/g of shell with and without cuticle was significantly higher on day 1 p.i. compared to day 7, after which PP IX increased with day p.i. In Experiment 2, shell reflectivity and L* increased and PP IX decreased with increased day p.i. until day 12. Shell reflectivity and L* decreased slightly after day 12 and increased again towards day 22. Shell reflectivity, L* and PP IX were not significantly different for eggshells from unvaccinated and vaccinated laying hens in the intact eggshell, but were significantly different in shells from which cuticle had been removed. In conclusion, the IBV strains reduced the intensity of brown shell colour to different extents with a lower amount of PP IX in eggshells.en
dc.languageenen
dc.publisherTaylor & Francisen
dc.relation.ispartofAvian Pathologyen
dc.titleInfectious bronchitis virus and brown shell colour: Australian strains of infectious bronchitit virus affect brown eggshell colour in commercial laying hens differentlyen
dc.typeJournal Articleen
dc.identifier.doi10.1080/03079457.2016.1184744en
dc.subject.keywordsAnimal Reproductionen
local.contributor.firstnameSamiullahen
local.contributor.firstnameJulie Ren
local.contributor.firstnameKapilen
local.subject.for2008070206 Animal Reproductionen
local.subject.seo2008830501 Eggsen
local.profile.schoolSchool of E&RS - Animal Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailsamiull2@une.edu.auen
local.profile.emailjrobert2@une.edu.auen
local.profile.emailkchousa2@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20161125-150842en
local.publisher.placeUnited Kingdomen
local.format.startpage552en
local.format.endpage558en
local.identifier.scopusid84988410170en
local.peerreviewedYesen
local.identifier.volume45en
local.identifier.issue5en
local.title.subtitleAustralian strains of infectious bronchitit virus affect brown eggshell colour in commercial laying hens differentlyen
local.contributor.lastnameSamiullahen
local.contributor.lastnameRobertsen
local.contributor.lastnameChousalkaren
dc.identifier.staffune-id:samiull2en
dc.identifier.staffune-id:jrobert2en
dc.identifier.staffune-id:kchousa2en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:20279en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleInfectious bronchitis virus and brown shell colouren
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorSamiullah, Samiullahen
local.search.authorRoberts, Julie Ren
local.search.authorChousalkar, Kapilen
local.uneassociationUnknownen
local.identifier.wosid000384112500006en
local.year.published2016en
local.fileurl.closedpublishedhttps://rune.une.edu.au/web/retrieve/99ec4c54-e442-4874-909a-f1e3f3994ba4en
local.subject.for2020300305 Animal reproduction and breedingen
local.subject.seo2020100601 Eggsen
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