Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/19338
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dc.contributor.authorBrown, Danielen
dc.contributor.authorSwan, Andrewen
dc.contributor.authorGill, Jamesen
dc.contributor.authorBall, Alexanderen
dc.contributor.authorBanks, Roberten
dc.date.accessioned2016-08-10T16:15:00Z-
dc.date.issued2016-
dc.identifier.citationAnimal Production Science, 56(9), p. 1442-1448en
dc.identifier.issn1836-5787en
dc.identifier.issn1836-0939en
dc.identifier.urihttps://hdl.handle.net/1959.11/19338-
dc.description.abstractSheep breeders in Australia that focus on lamb production simultaneously breed sheep that have higher growth rate, improved carcass quality and are resistant to internal parasites. The objective of this study was to estimate genetic parameters for 11 traits recorded in Australian meat sheep, covering liveweight, carcass and internal parasite resistance traits. As the population of meat sheep in this database have become increasingly crossbred this study also investigates the genetic variation within and between breeds. The data comprised 1 046 298 animals from 149 Poll Dorset, 17 Suffolk, 24 Texel and 118 White Suffolk flocks. The results are averages of analyses of 10 datasets constructed by randomly sampling 25% of these flocks. There was considerable genetic variation in all traits analysed: the lowest heritabilities (0.12) were found for weaning weight and the highest heritabilities (0.31-0.32) for eye muscle depth. There were also significant differences between breeds for most traits, which breeders appear to be utilising through crossbreeding. Direct heterosis effects were small and only significant for the liveweight traits ranging from 2% to 3.4% of the phenotypic means. Maternal heterosis was not significant for any trait studied. The inclusion of heterosis effects in the model did not significantly influence the estimated genetic parameters. The results from this study have been used to review the genetic parameters used in the LAMBPLAN routine genetic evaluations conducted by Sheep Genetics.en
dc.languageenen
dc.publisherCSIRO Publishingen
dc.relation.ispartofAnimal Production Scienceen
dc.titleGenetic parameters for liveweight, wool and worm resistance traits in multi-breed Australian meat sheep: 1. Description of traits, fixed effects, variance components and their ratiosen
dc.typeJournal Articleen
dc.identifier.doi10.1071/an14787en
dc.subject.keywordsAnimal Breedingen
local.contributor.firstnameDanielen
local.contributor.firstnameAndrewen
local.contributor.firstnameJamesen
local.contributor.firstnameAlexanderen
local.contributor.firstnameRoberten
local.subject.for2008070201 Animal Breedingen
local.subject.seo2008830310 Sheep - Meaten
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.emaildbrown2@une.edu.auen
local.profile.emailaswan@une.edu.auen
local.profile.emailjgill20@une.edu.auen
local.profile.emailaball@une.edu.auen
local.profile.emailrbanks@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20160414-124135en
local.publisher.placeAustraliaen
local.format.startpage1442en
local.format.endpage1448en
local.identifier.scopusid84980417080en
local.peerreviewedYesen
local.identifier.volume56en
local.identifier.issue9en
local.title.subtitle1. Description of traits, fixed effects, variance components and their ratiosen
local.contributor.lastnameBrownen
local.contributor.lastnameSwanen
local.contributor.lastnameGillen
local.contributor.lastnameBallen
local.contributor.lastnameBanksen
dc.identifier.staffune-id:dbrown2en
dc.identifier.staffune-id:aswanen
dc.identifier.staffune-id:jgill20en
dc.identifier.staffune-id:aballen
dc.identifier.staffune-id:rbanksen
local.profile.orcid0000-0002-4786-7563en
local.profile.orcid0000-0001-8048-3169en
local.profile.orcid0000-0001-7303-033Xen
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:19534en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleGenetic parameters for liveweight, wool and worm resistance traits in multi-breed Australian meat sheepen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorBrown, Danielen
local.search.authorSwan, Andrewen
local.search.authorGill, Jamesen
local.search.authorBall, Alexanderen
local.search.authorBanks, Roberten
local.uneassociationUnknownen
local.year.published2016en
local.fileurl.closedpublishedhttps://rune.une.edu.au/web/retrieve/cec6fabb-f8fc-4069-9857-2b83d0df18e5en
local.subject.for2020300305 Animal reproduction and breedingen
local.subject.seo2020100412 Sheep for meaten
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
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