Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/51592
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dc.contributor.authorMoore, K Len
dc.contributor.authorGrant, T Pen
dc.contributor.authorJohnston, D Jen
dc.date.accessioned2022-04-13T00:19:52Z-
dc.date.available2022-04-13T00:19:52Z-
dc.date.issued2021-
dc.identifier.citationProceedings of the Association for the Advancement of Animal Breeding and Genetics, v.24, p. 247-250en
dc.identifier.issn1328-3227en
dc.identifier.urihttps://hdl.handle.net/1959.11/51592-
dc.descriptionPaper presented by Kirsty Mooreen
dc.description.abstract<p>This study estimated variance components of body condition and growth traits and the genetic relationships across time and traits for approximately 2,200 females from three tropically adapted northern Australian beef breeds. Body condition score, measured in yearling heifers and subsequently at the commencement of their annual mating seasons (1<sup>st</sup> and 2<sup>nd</sup>), was estimated to be heritable (h<sup>2</sup>: 0.32to 0.36) and with high genetic correlations (r<sub>g</sub>) over time, ranging from 0.76 to 0.85. Hip height was also estimated to be strongly heritable at the three time points (h<sup>2</sup>: 0.59 to 0.67) and was genetically the same trait across the time points(r<sub>g</sub>: 0.94 to 0.99). Similar results were found for live weight, with heritability estimates ranging between 0.61 and 0.65 and weight being strongly correlated across the different time points (r<sub>g</sub>: 0.81 to 0.95). Genetic correlations between traits within the same time point showed that when cows were undergoing the fastest growth (commencement of mating 1) the genetic relationships varied compared to times points with slower growth. As yearling heifers and into mating 2 the genetic relationship between hip height and body condition score was small to moderately negative. However, at commencement of mating 1, a strong negative genetic correlation was observed. Likewise, the genetic correlation between live weight and body condition score was moderately positive, except for the commencement of mating 1, when it was not significantly different from zero. Body composition is moderately heritable but the physiological state impacts on the genetic relationships between traits, so having a clearly defined time of measurement will be essential in the trait definition.</p>en
dc.languageenen
dc.publisherAssociation for the Advancement of Animal Breeding and Genetics (AAABG)en
dc.relation.ispartofProceedings of the Association for the Advancement of Animal Breeding and Geneticsen
dc.titleGenetic analysis of body condition and growth traits in beef females within and across ages and physiological statesen
dc.typeConference Publicationen
dc.relation.conferenceAAABG 2021: 24th Conference of the Association for the Advancement of Animal Breeding and Geneticsen
dcterms.accessRightsBronzeen
local.contributor.firstnameK Len
local.contributor.firstnameT Pen
local.contributor.firstnameD Jen
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.emailkmoore7@une.edu.auen
local.profile.emaildjohnsto@une.edu.auen
local.output.categoryE1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.date.conference2nd - 4th November, 2021en
local.conference.placeOnline Eventen
local.publisher.placeArmidale, Australiaen
local.format.startpage247en
local.format.endpage250en
local.url.openhttp://www.aaabg.org/aaabghome/proceedings24.phpen
local.peerreviewedYesen
local.identifier.volume24en
local.access.fulltextYesen
local.contributor.lastnameMooreen
local.contributor.lastnameGranten
local.contributor.lastnameJohnstonen
dc.identifier.staffune-id:kmoore7en
dc.identifier.staffune-id:djohnstoen
local.profile.orcid0000-0001-6779-0148en
local.profile.orcid0000-0002-4995-8311en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:1959.11/51592en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleGenetic analysis of body condition and growth traits in beef females within and across ages and physiological statesen
local.relation.fundingsourcenoteMLA (project B.NBP.0759)en
local.output.categorydescriptionE1 Refereed Scholarly Conference Publicationen
local.relation.urlhttp://www.aaabg.org/aaabghome/en
local.conference.detailsAAABG 2021: 24th Conference of the Association for the Advancement of Animal Breeding and Genetics, Online Event, 2nd - 4th November, 2013en
local.search.authorMoore, K Len
local.search.authorGrant, T Pen
local.search.authorJohnston, D Jen
local.uneassociationYesen
dc.date.presented2021-11-04-
local.atsiresearchNoen
local.conference.venueOnline Eventen
local.sensitive.culturalNoen
local.year.published2021en
local.year.presented2021en
local.fileurl.closedpublishedhttps://rune.une.edu.au/web/retrieve/85d103f3-4b90-4b3a-aa59-2222f3c02d1fen
local.subject.for2020300301 Animal growth and developmenten
local.subject.seo2020100401 Beef cattleen
local.date.start2021-11-02-
local.date.end2021-11-04-
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Conference Publication
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