Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/5233
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dc.contributor.authorWhelan, Michael Barryen
dc.contributor.authorCottle, Daviden
dc.contributor.authorGeenty, Kennetten
dc.contributor.authorBrown, Danielen
local.source.editorEditor(s): Alex Safari, Bill Pattie, Barrie Restallen
dc.date.accessioned2010-03-22T09:10:00Z
dc.date.issued2009en
dc.identifier.citationProceedings of the 18th Conference of the Association for the Advancement of Animal Breeding and Genetics: Matching Genetics and Environment - a New Look at an Old Topic, p. 52-55en
dc.identifier.isbn9780646521039en
dc.identifier.issn1328-3227en
dc.identifier.urihttps://hdl.handle.net/1959.11/5233en
dc.description.abstractAustralian sheep grazing environments are currently classified into 3 very broad zones (High Rainfall, Wheat/Sheep and Pastoral) that do not differentiate sheep grazing environments to a level allowing sheep producers to assess the impact grazing environments may have on sire progeny performance. If a genotype by environment interaction (GEI) is expressed more as environments diverge then a finer classification of environments may help breeders when selecting stud rams. A sheep grazing environment classification system has been developed in this study using readily obtainable monthly Normalised Difference Vegetation Index (NDVI), from satellite data, and monthly maximum temperature for a 10 year period. Cluster analysis was used on the NVDI and temperature data to create 25 sheep grazing environment classes (SGEclass) around Australia. Two-way analysis of variance revealed a significant interaction between sire progeny performance and SGEclass for hogget weight, fibre diameter and greasy fleece weight. Further ASReml analysis of Merino data from Sheep Genetics illustrated that sire by SGEclass explained similar amounts of variation as sire by flock. Recording the geographic location of the flock would improve the ability to account for environmental differences between flocks.en
dc.languageenen
dc.publisherAAABG: Association for the Advancement of Animal Breeding and Geneticsen
dc.relation.ispartofProceedings of the 18th Conference of the Association for the Advancement of Animal Breeding and Genetics: Matching Genetics and Environment - a New Look at an Old Topicen
dc.titleClassifying sheep grazing environments using satellite data to quantify genotype by environment interactionsen
dc.typeConference Publicationen
dc.relation.conference18th Conference of the Association for the Advancement of Animal Breeding and Genetics, Barossa Valley, Australia, 27th September - 2nd October, 2009en
dc.subject.keywordsAnimal Breedingen
local.contributor.firstnameMichael Barryen
local.contributor.firstnameDaviden
local.contributor.firstnameKennetten
local.contributor.firstnameDanielen
local.subject.for2008070201 Animal Breedingen
local.subject.seo2008830311 Sheep - Woolen
local.subject.seo2008830301 Beef Cattleen
local.profile.schoolAnimal Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.emaildcottle2@une.edu.auen
local.profile.emailkgeenty@une.edu.auen
local.profile.emaildbrown2@une.edu.auen
local.output.categoryE1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20090901-165517en
local.publisher.placeTaringa, Australiaen
local.format.startpage52en
local.format.endpage55en
local.peerreviewedYesen
local.contributor.lastnameWhelanen
local.contributor.lastnameCottleen
local.contributor.lastnameGeentyen
local.contributor.lastnameBrownen
dc.identifier.staffune-id:mwhelan4en
dc.identifier.staffune-id:dcottle2en
dc.identifier.staffune-id:kgeentyen
dc.identifier.staffune-id:dbrown2en
local.profile.orcid0000-0003-3875-3465en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:5352en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleClassifying sheep grazing environments using satellite data to quantify genotype by environment interactionsen
local.output.categorydescriptionE1 Refereed Scholarly Conference Publicationen
local.relation.urlhttp://www.aaabg.org/proceedings18/index.htmlen
local.conference.details18th Conference of the Association for the Advancement of Animal Breeding and Genetics, Barossa Valley, Australia, 27th September - 2nd October, 2009en
local.description.statisticsepubsVisitors: 138<br />Views: 146<br />Downloads: 0en
local.search.authorWhelan, Michael Barryen
local.search.authorCottle, Daviden
local.search.authorGeenty, Kennetten
local.search.authorBrown, Danielen
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Conference Publication
School of Environmental and Rural Science
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