Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/27234
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dc.contributor.authorHebart, M Len
dc.contributor.authorAccioly, J Men
dc.contributor.authorCopping, K Jen
dc.contributor.authorDeland, M P Ben
dc.contributor.authorHerd, R Men
dc.contributor.authorJones, F Men
dc.contributor.authorLaurence, Men
dc.contributor.authorLee, S Jen
dc.contributor.authorLines, D Sen
dc.contributor.authorSpeijers, E Jen
dc.contributor.authorWalmsley, B Jen
dc.contributor.authorPitchford, W Sen
dc.date.accessioned2019-06-20T23:54:47Z-
dc.date.available2019-06-20T23:54:47Z-
dc.date.issued2018-
dc.identifier.citationAnimal Production Science, 58(1), p. 80-93en
dc.identifier.issn1836-0939en
dc.identifier.issn1836-5787en
dc.identifier.urihttps://hdl.handle.net/1959.11/27234-
dc.description.abstractCow bodyweight gain, calf weaning weight, feed intake and maternal productivity of 500 Angus cows, in 64 replicate groups, were measured over three parities at two locations (Struan and Vasse) as part of the Beef CRC Maternal Productivity Project. The cows were sourced as heifers from the top and bottom 10% of BREEDPLAN Rib Fat EBV (High-Fat and Low-Fat), and from High and Low residual feed intake (RFI) selection lines (High-RFI and Low-RFI). Each of the four genotypes were run under High- and Low-Nutrition (measured as feed on offer) at both sites. The High-Fat cows were 7% more efficient at producing weaner calves under Low-Nutrition than were the Low-Fat cows. This was driven primarily by the 4% difference between the lines in weaning rate. When weaning rate differences were accounted for (as covariate), there was no difference between the Fat lines in the efficiency of weaner weight production. When the weight gain of the cow was included as an output in addition to calf weaning weight, there was also no difference between the Fat lines in efficiency. Low-RFI cows were always more efficient at producing weaner calves than were the High-RFI cows. This was primarily driven through a 7% reduction in annual feed intake (across both nutrition treatments). However, the Low-RFI cows were leaner, had 6.3% lower weaning rate and calved on average 5.4 days later than did the High-RFI cows. Furthermore, the largest differences in feed intake were in spring when feed availability is greatest. In the context of the results herein, a balanced breeding program should include selection for improved reproduction and low RFI.en
dc.languageenen
dc.publisherCSIRO Publishingen
dc.relation.ispartofAnimal Production Scienceen
dc.titleDivergent breeding values for fatness or residual feed intake in Angus cattle. 5. Cow genotype affects feed efficiency and maternal productivityen
dc.typeJournal Articleen
dc.identifier.doi10.1071/AN14034en
local.contributor.firstnameM Len
local.contributor.firstnameJ Men
local.contributor.firstnameK Jen
local.contributor.firstnameM P Ben
local.contributor.firstnameR Men
local.contributor.firstnameF Men
local.contributor.firstnameMen
local.contributor.firstnameS Jen
local.contributor.firstnameD Sen
local.contributor.firstnameE Jen
local.contributor.firstnameB Jen
local.contributor.firstnameW Sen
local.subject.for2008070201 Animal Breedingen
local.subject.seo2008830301 Beef Cattleen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.emailrherd3@une.edu.auen
local.profile.emailbwalms2@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.publisher.placeAustraliaen
local.format.startpage80en
local.format.endpage93en
local.peerreviewedYesen
local.identifier.volume58en
local.identifier.issue1en
local.contributor.lastnameHebarten
local.contributor.lastnameAcciolyen
local.contributor.lastnameCoppingen
local.contributor.lastnameDelanden
local.contributor.lastnameHerden
local.contributor.lastnameJonesen
local.contributor.lastnameLaurenceen
local.contributor.lastnameLeeen
local.contributor.lastnameLinesen
local.contributor.lastnameSpeijersen
local.contributor.lastnameWalmsleyen
local.contributor.lastnamePitchforden
dc.identifier.staffune-id:rherd3en
dc.identifier.staffune-id:bwalms2en
local.profile.orcid0000-0003-4689-5519en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
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local.identifier.unepublicationidune:1959.11/27234en
local.date.onlineversion2016-03-02-
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleDivergent breeding values for fatness or residual feed intake in Angus cattle. 5. Cow genotype affects feed efficiency and maternal productivityen
local.relation.fundingsourcenoteMeat and Livestock Australiaen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorHebart, M Len
local.search.authorAccioly, J Men
local.search.authorCopping, K Jen
local.search.authorDeland, M P Ben
local.search.authorHerd, R Men
local.search.authorJones, F Men
local.search.authorLaurence, Men
local.search.authorLee, S Jen
local.search.authorLines, D Sen
local.search.authorSpeijers, E Jen
local.search.authorWalmsley, B Jen
local.search.authorPitchford, W Sen
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Journal Article
School of Environmental and Rural Science
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