Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/23448
Full metadata record
DC FieldValueLanguage
dc.contributor.authorJeyaruban, M Gilberten
dc.contributor.authorJohnston, Daviden
local.source.editorEditor(s): Laercio Porto-Netoen
dc.date.accessioned2018-07-05T09:54:00Z
dc.date.issued2017en
dc.identifier.citationProceedings of the Twenty-second (22nd) Conference of the Association for the Advancement of Animal Breeding, v.22, p. 305-308en
dc.identifier.issn1328-3227en
dc.identifier.urihttps://hdl.handle.net/1959.11/23448en
dc.description.abstractThis study investigated the potential value of traits measured in young bulls as genetic indicators for female reproductive performance in two tropical beef cattle breeds. Genetic parameters for the male traits percentage of normal sperm (PNS) and scrotal circumference (SC), and their genetic relationships with first (DTC1) second (DTC2) and all days to calving measures (maximum of six) (DTCall) were estimated in Brahman (BRAH) and Santa Gertrudis (SANTA) cattle from records submitted for BREEDPLAN evaluation. Estimated heritabilities for PNS and SC were 0.20±0.06 and 0.45±0.02 for BRAH and 0.17±0.05 and 0.43±0.02 for SANTA, respectively. Genetic correlations between PNS and DTC1, DTC2 and DTCall were -0.67±0.28, - 0.79±0.25 and -0.47±0.22 in BRAH and -0.18±0.21, -0.28±0.27 and -0.20±0.20 in SANTA, respectively. Genetic correlations of SC with DTC1, DTC2 and DTCall were -0.26±0.12, - 0.25±0.13 and -0.19±0.08 in BRAH and -0.02±0.09, -0.19±0.13 and 0.00±0.09 in SANTA. These results showed that PNS and SC measured at 18 to 24 months of age in young BRAH and SANTA bulls were moderately heritable and their genetic correlations with DTC were in the same direction in both breeds. PNS and SC had higher genetic correlations with early DTC measures compared to DTC measured in older cows, indicating that they may be more related to early reproduction than lifetime reproduction. In addition, PNS was more strongly related with all DTC measures than SC in both breeds, which suggests that PNS may be a better indicator trait than SC for improving female reproduction in tropical breeds in Northern Australia.en
dc.languageenen
dc.publisherAAABG: Association for the Advancement of Animal Breeding and Geneticsen
dc.relation.ispartofProceedings of the Twenty-second (22nd) Conference of the Association for the Advancement of Animal Breedingen
dc.titleGenetic Association of Young Male Traits with Female Reproductive Performance in Brahman and Santa Gertrudis Cattleen
dc.typeConference Publicationen
dc.relation.conference22nd Conference of the Association for the Advancement of Animal Breeding and Genetics, Townsville, Australia, 2nd - 5th July, 2017en
dcterms.accessRightsGolden
dc.subject.keywordsAnimal Breedingen
local.contributor.firstnameM Gilberten
local.contributor.firstnameDaviden
local.subject.for2008070201 Animal Breedingen
local.subject.seo2008830301 Beef Cattleen
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.emailgjeyarub@une.edu.auen
local.profile.emaildjohnsto@une.edu.auen
local.output.categoryE1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20180411-110015en
local.publisher.placeFitzroy, Australiaen
local.format.startpage305en
local.format.endpage308en
local.url.openhttp://agbu.une.edu.au/AAABG%202017/69Jeyaruban22305.pdfen
local.peerreviewedYesen
local.identifier.volume22en
local.access.fulltextYesen
local.contributor.lastnameJeyarubanen
local.contributor.lastnameJohnstonen
dc.identifier.staffune-id:gjeyaruben
dc.identifier.staffune-id:djohnstoen
local.profile.orcid0000-0002-0231-0120en
local.profile.orcid0000-0002-4995-8311en
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:23630en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleGenetic Association of Young Male Traits with Female Reproductive Performance in Brahman and Santa Gertrudis Cattleen
local.output.categorydescriptionE1 Refereed Scholarly Conference Publicationen
local.relation.urlhttp://agbu.une.edu.au/AAABG_2017.htmlen
local.relation.urlhttp://www.aaabg.org/aaabghome/en
local.conference.details22nd Conference of the Association for the Advancement of Animal Breeding and Genetics, Townsville, Australia, 2nd - 5th July, 2017en
local.search.authorJeyaruban, M Gilberten
local.search.authorJohnston, Daviden
local.uneassociationUnknownen
local.year.published2017en
local.subject.for2020300305 Animal reproduction and breedingen
local.subject.seo2020100401 Beef cattleen
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Conference Publication
Files in This Item:
5 files
File Description SizeFormat 
Show simple item record

Page view(s)

1,188
checked on Dec 6, 2021
Google Media

Google ScholarTM

Check

WEB OF SCIENCETM
Citations

 

Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.