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dc.contributor.authorBerry, Donagh*
dc.contributor.authorBuckley, Frank*
dc.contributor.authorDillon, Pat*
dc.contributor.authorEvans, R. D.*
dc.contributor.authorVeerkamp, Roel F.*
dc.date.accessioned2013-08-20T16:16:49Z
dc.date.available2013-08-20T16:16:49Z
dc.date.issued2004
dc.identifier.citationD.P. Berry, F. Buckley, P. Dillon, R.D. Evans and R.F. Veerkamp. Genetic relationships among linear type traits, milk yield, body weight, fertility and somatic cell count in primiparous dairy cows. Irish Journal of Agricultural and Food Research 43: 161–176, 2004en_GB
dc.identifier.issn0791-6833
dc.identifier.urihttp://hdl.handle.net/11019/432
dc.descriptionpeer-revieweden_GB
dc.description.abstractPhenotypic and genetic (co)variances among type traits, milk yield, body weight, fertility and somatic cell count were estimated. The data analysed included 3,058 primiparous spring-calving Holstein-Friesian cows from 80 farms throughout the south of Ireland. Heritability estimates for the type traits varied from 0.11 to 0.43. Genetic correlations among some type traits were very strong and may indicate the possibility of reducing the number of traits assessed on each animal; the genetic correlation between angularity and body condition score was –0.84. Genetic correlations between all type traits (except body condition score, udder depth and teat length) and milk yield were positive and ranged from 0.08 to 0.69. The possibility of selecting for body weight may be achievable within a national progeny-testing programme using type traits within a selection index. Moderate to strong genetic correlations existed between some type traits and the various fertility measures and somatic cell count indicating the opportunity of indirect selection for improved fertility and health of animals using type traits within a selection index; however, the standard errors of some of the genetic correlations were large and should thus be treated with caution. Genetically taller, wider, deeper, more angular cows with tighter, stronger, shallower udders were predisposed to have inferior pregnancy rates to first service and require more services.en_GB
dc.description.sponsorshipAllied Irish Bank; AI Managers Association; Holstein-Friesian Society of Great Britain and Ireland; Dairy Levy Farmer Funds; European Union Structural Funds (FEOGA) programme.en_GB
dc.language.isoenen_GB
dc.publisherTeagasc (Agriculture and Food Development Authority), Irelanden_GB
dc.relation.ispartofseriesIrish Journal of Agricultural and Food Research;vol 43
dc.subjectBody weighten_GB
dc.subjectFertilityen_GB
dc.subjectGeneticen_GB
dc.subjectSomatic cell counten_GB
dc.subjectTypeen_GB
dc.titleGenetic relationships among linear type traits, milk yield, body weight, fertility and somatic cell count in primiparous dairy cowsen_GB
dc.typeArticleen_GB
dc.identifier.rmisMKDC-0103-5066
dc.contributor.sponsorAllied Irish Bank
dc.contributor.sponsorAI Managers Association
dc.contributor.sponsorHolstein-Friesian Society of Great Britain and Ireland
refterms.dateFOA2018-01-12T07:49:53Z


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