Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/14251
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dc.contributor.authorWalkden-Brown, Steve Wen
dc.contributor.authorIslam, Afm Fakhrulen
dc.contributor.authorWells, Benen
dc.contributor.authorBurgess, Susanen
dc.date.accessioned2014-03-13T14:03:00Z-
dc.date.issued2012-
dc.identifier.citationWorld's Poultry Science Journal, 68(Supplement 1), p. 307-310en
dc.identifier.issn0043-9339en
dc.identifier.urihttps://hdl.handle.net/1959.11/14251-
dc.description.abstractReusing poultry litter for multiple batches of broiler chickens risks transfer of pathogens between batches. On two commercial farms we investigated the effects of various litter heaping treatments for 9-10 days between batches of chickens (heaping or windrowing, with or without turning at day 3-4, or litter turning only) on temperature profiles and loss of infectivity of litter for key viral pathogens and coccidia. Treatments within farm were replicated in two sheds. Temperature was monitored continuously at depths of 0, 25, 50 and 75-100 cm. On days 0, 3-4, 6-7, and 9-10, representative litter from these depths was collected, pooled and infectivity tested using a published chick bioassay measuring seroconversion or oocyst production in chicks exposed to litter in isolators. Temperature varied markedly with depth and time. Mean below surface maxima of 65-68 °C (Farm 1) and 55-63 °C (Farm 2) were reached more rapidly at 25 cm (3-4 days) than 50-100cm (7-10 days) with the highest peak temperatures recorded at 50cm. Temperatures were higher in heaps than windrows and turning did not increase temperature. Coccidial infectivity was undetectable by day 3. Fowl adenovirus infectivity was mostly undetectable by days 6-7 while chicken infectious anaemia virus and infectious bursal disease virus infectivity were undetectable by days 6-10. Marek's disease virus showed reduction in infectivity with significant infectivity remaining at days 9-10. This work confirmed litter transmission of several viral pathogens and showed that heaping of litter between batches will markedly reduce the infective load of most pathogens evaluated, and potentially eliminate some.en
dc.languageenen
dc.publisherCambridge University Pressen
dc.relation.ispartofWorld's Poultry Science Journalen
dc.titleIn-shed heaping of broiler litter to inactivate poultry pathogens before reuseen
dc.typeConference Publicationen
dc.relation.conferenceWPC 2012: XXIV World's Poultry Congressen
dc.subject.keywordsAnimal Protection (Pests and Pathogens)en
local.contributor.firstnameSteve Wen
local.contributor.firstnameAfm Fakhrulen
local.contributor.firstnameBenen
local.contributor.firstnameSusanen
local.subject.for2008070205 Animal Protection (Pests and Pathogens)en
local.subject.seo2008830309 Poultryen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolAnimal Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailswalkden@une.edu.auen
local.profile.emailfislam2@une.edu.auen
local.profile.emailsburgess@une.edu.auen
local.output.categoryE2en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20130419-16145en
local.date.conference5th - 9th August, 2012en
local.conference.placeSalvador, Brazilen
local.publisher.placeUnited Kingdomen
local.format.startpage307en
local.format.endpage310en
local.identifier.volume68en
local.identifier.issueSupplement 1en
local.contributor.lastnameWalkden-Brownen
local.contributor.lastnameIslamen
local.contributor.lastnameWellsen
local.contributor.lastnameBurgessen
dc.identifier.staffune-id:swalkdenen
dc.identifier.staffune-id:fislam2en
dc.identifier.staffune-id:sburgessen
local.profile.orcid0000-0002-0638-5533en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:14466en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleIn-shed heaping of broiler litter to inactivate poultry pathogens before reuseen
local.output.categorydescriptionE2 Non-Refereed Scholarly Conference Publicationen
local.conference.detailsWPC 2012: XXIV World's Poultry Congress, Salvador, Brazil, 5th - 9th August, 2012en
local.search.authorWalkden-Brown, Steve Wen
local.search.authorIslam, Afm Fakhrulen
local.search.authorWells, Benen
local.search.authorBurgess, Susanen
local.uneassociationUnknownen
local.year.published2012en
local.subject.for2020300304 Animal protection (incl. pests and pathogens)en
local.subject.seo2020100411 Poultryen
local.date.start2012-08-05-
local.date.end2012-08-09-
Appears in Collections:Conference Publication
School of Environmental and Rural Science
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