Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/3139
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dc.contributor.authorSchutt, Karen Mareeen
dc.contributor.authorBurrow, Heatheren
dc.contributor.authorHenshall, Johnen
dc.contributor.authorWerf, Julius Van Deren
dc.contributor.authorKinghorn, Brianen
dc.date.accessioned2009-11-17T17:15:00Z-
dc.date.created2007en
dc.date.issued2008en
dc.description.abstractThis thesis compared straightbred Brahmans to tropically adapted composites for carcass quality, objective and sensory meat quality, feed efficiency, feeding behaviour and reproductive performance under tropical and subtropical conditions in northern Australian using typical commercial beef production practices. Straightbred Brahmans had carcasses up to 160% lighter than Continental (Charolais, Limousin) and British (Angus, Hereford, Shorthonl) sired crosses by Brahman dams (P<0.001), intermediate subcutaneous fat cover, retail beef yields and kilograms of retail primals, and low marbling. British and Belmont Red sired crossbreds had the highest marbling, while British and Santa Gertrudis sired crossbreds had the fattest carcasses. Continental crossbreds had the leanest, highest yielding carcasses with intermediate marbling. There was little difference between sire breeds for most objective and sensory meat quality traits. The exception was straightbred Brahmans with the highest LT shear force (5.39±0.07; P<0.001), LT instron compression (1.89±0.02; P<0.05) and LT and ST cooking loss (P<0.05). Straightbred Brahmans were the only breed that failed to meet minimum MSA (sensory) grading (CMQ4 = 38.3; P<0.001). Crossbreds with up to 75% Brahman content had acceptably tender beef (shear force < 5.0 kg, instron compression < 2.2 kg, CMQ4 score> 46.5). All measures of instron compression were below 2.2 kg indicating connective tissue toughness was not important in these animals slaughtered by an average of 24 months of age. There was little evidence of breed x finish and breed x market interactions.en
dc.languageenen
dc.titleEvaluation of Brahmans and tropically adapted crossbreds and composites for economically important beef cattle traitsen
dc.typeThesis Doctoralen
dcterms.accessRightsUNE Greenen
local.contributor.firstnameKaren Mareeen
local.contributor.firstnameHeatheren
local.contributor.firstnameJohnen
local.contributor.firstnameJulius Van Deren
local.contributor.firstnameBrianen
dcterms.RightsStatementCopyright 2007 - Karen Maree Schutten
dc.date.conferred2008en
local.thesis.degreelevelDoctoralen
local.thesis.degreenameDoctor of Philosophyen
local.contributor.grantorUniversity of New Englanden
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolAdministrationen
local.profile.emailhburrow2@une.edu.auen
local.profile.emailjvanderw@une.edu.auen
local.profile.emailbkinghor@une.edu.auen
local.output.categoryT2en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordvtls086374341en
local.access.fulltextYesen
local.contributor.lastnameSchutten
local.contributor.lastnameBurrowen
local.contributor.lastnameHenshallen
local.contributor.lastnameWerfen
local.contributor.lastnameKinghornen
dc.identifier.staffune-id:hburrow2en
dc.identifier.staffune-id:jvanderwen
dc.identifier.staffune-id:bkinghoren
local.profile.orcid0000-0003-2512-1696en
local.profile.roleauthoren
local.profile.rolesupervisoren
local.profile.rolesupervisoren
local.profile.rolesupervisoren
local.profile.rolesupervisoren
local.identifier.unepublicationidune:3222en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleEvaluation of Brahmans and tropically adapted crossbreds and composites for economically important beef cattle traitsen
local.output.categorydescriptionT2 Thesis - Doctorate by Researchen
local.description.statisticsepubsVisitors: 102<br />Views: 98<br />Downloads: 12en
local.thesis.borndigitalnoen
local.search.authorSchutt, Karen Mareeen
local.search.supervisorBurrow, Heatheren
local.search.supervisorHenshall, Johnen
local.search.supervisorWerf, Julius Van Deren
local.search.supervisorKinghorn, Brianen
local.open.fileurlhttps://rune.une.edu.auweb/retrieve/876bf3be-4fca-46ad-8a45-73d4f6a590a9en
local.open.fileurlhttps://rune.une.edu.auweb/retrieve/91b1f9b7-c2c5-4cf7-9f70-cb1535568487en
Appears in Collections:Thesis Doctoral
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