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Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/28986
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dc.contributor.authorTorres-Vazquez, J Aen
dc.contributor.authorvan der Werf, J H Jen
dc.contributor.authorClark, S Aen
local.source.editorEditor(s): Laercio Porto-Netoen
dc.date.accessioned2020-07-03T01:18:10Z-
dc.date.available2020-07-03T01:18:10Z-
dc.date.issued2017-
dc.identifier.citationProceedings of the Association for the Advancement of Animal Breeding and Genetics, v.22, p. 461-464en
dc.identifier.issn1328-3227en
dc.identifier.urihttps://hdl.handle.net/1959.11/28986-
dc.description.abstractFeed intake represents a major cost to all animal production systems. Increasing the efficiency in which animals turn this feed into product can be a major goal in many animal breeding programs. Consequently, Australian beef producers have been measuring many traits associated with feed efficiency in an attempt to increase the accuracy of selection, precision of genetic parameters estimates and ultimately increase the amount of genetic gain achieved. The objective of this study was to estimate genetic and phenotypic parameters for traits associated with feed efficiency from records on 1614 Angus Steers from the Australian Beef Information Nucleus (BIN). Traits analysed included Average Daily Weight Gain (ADG), Metabolic Mid-Weight (MMWT), Daily Feed Intake (FI), Feed Conversion Ratio (FCR) and Residual (or Net) Feed Intake (RFI). Parameters were estimated using bivariate animal models in ASReml. Heritability estimates ranged from 0.12 ±0.06 for FCR to 0.49 ±0.09 for FI. High genetic correlations were estimated between FI and RFI (0.83±0.05) and FI and ADG (0.81±0.08). Significant genetic correlation also existed between ADG and MMWT (0.65±0.12) and between MMWT and FI (0.68±0.08). Heritability estimates show that there would be a favourable response to selection for the efficiency traits in this population. The positive and unfavourable genetic correlation between ADG and RFI, suggest that improving RFI would result in lower ADG. Given this, further studies are required to investigate genetic associations between efficiency traits and other economically important traits, in addition to examine new ways of utilizing feed efficiency information in breeding programs.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 and Phenotypic Parameters for Feed Efficiency Traits in Australian Angus Beef Cattleen
dc.typeConference Publicationen
dc.relation.conferenceAAABG 2017: 22nd Conference of the Association for the Advancement of Animal Breeding and Geneticsen
dcterms.accessRightsBronzeen
local.contributor.firstnameJ Aen
local.contributor.firstnameJ H Jen
local.contributor.firstnameS Aen
local.subject.for2008070201 Animal Breedingen
local.subject.for2008060412 Quantitative Genetics (incl. Disease and Trait Mapping Genetics)en
local.subject.for2008070202 Animal Growth and Developmenten
local.subject.seo2008830301 Beef Cattleen
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailtorresva@une.edu.auen
local.profile.emailjvanderw@une.edu.auen
local.profile.emailsclark37@une.edu.auen
local.output.categoryE1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.date.conference2nd - 5th July, 2017en
local.conference.placeTownsville, Australiaen
local.publisher.placeArmidale, Australiaen
local.format.startpage461en
local.format.endpage464en
local.url.openhttp://www.aaabg.org/aaabghome/fullproc22.phpen
local.peerreviewedYesen
local.identifier.volume22en
local.access.fulltextYesen
local.contributor.lastnameTorres-Vazquezen
local.contributor.lastnamevan der Werfen
local.contributor.lastnameClarken
dc.identifier.staffune-id:torresvaen
dc.identifier.staffune-id:jvanderwen
dc.identifier.staffune-id:sclark37en
local.profile.orcid0000-0001-6965-6065en
local.profile.orcid0000-0003-2512-1696en
local.profile.orcid0000-0001-8605-1738en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:1959.11/28986en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleGenetic and Phenotypic Parameters for Feed Efficiency Traits in Australian Angus Beef Cattleen
local.output.categorydescriptionE1 Refereed Scholarly Conference Publicationen
local.relation.urlhttp://www.aaabg.org/aaabghome/en
local.conference.detailsAAABG 2017: 22nd Conference of the Association for the Advancement of Animal Breeding and Genetics, Townsville, Australia, 2nd - 5th July, 2017en
local.search.authorTorres-Vazquez, J Aen
local.search.authorvan der Werf, J H Jen
local.search.authorClark, S Aen
local.uneassociationYesen
dc.date.presented2017-
local.atsiresearchNoen
local.sensitive.culturalNoen
local.year.published2017en
local.year.presented2017en
local.fileurl.closedpublishedhttps://rune.une.edu.au/web/retrieve/51b8680c-af87-4e38-bcde-304f7706bd25en
local.subject.for2020300305 Animal reproduction and breedingen
local.subject.for2020310506 Gene mappingen
local.subject.for2020300301 Animal growth and developmenten
local.subject.seo2020100401 Beef cattleen
local.date.start2017-07-02-
local.date.end2017-07-05-
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School of Environmental and Rural Science
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