Estimates of genetic parameters for growth traits in Dorper crossbred sheep population

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cg.authorship.typesCGIAR and developing country instituteen_US
cg.contributor.affiliationDebre Birhan Agricultural Research Centeren_US
cg.contributor.affiliationInternational Centre for Agricultural Research in the Dry Areasen_US
cg.contributor.affiliationInternational Livestock Research Instituteen_US
cg.contributor.donorAmhara Agricultural Research Institute, Ethiopiaen_US
cg.contributor.donorEthiopian Institute of Agricultural Researchen_US
cg.coverage.countryEthiopiaen_US
cg.coverage.iso3166-alpha2ETen_US
cg.coverage.regionAfricaen_US
cg.coverage.regionEastern Africaen_US
cg.creator.identifierTesfaye Getachew Mengistu: 0000-0002-0544-6314en_US
cg.creator.identifierSolomon Gizaw: 0000-0002-0600-7188en_US
cg.howPublishedFormally Publisheden_US
cg.identifier.doihttps://doi.org/10.1007/s11250-024-04170-0en_US
cg.isijournalISI Journalen_US
cg.issn0049-4747en_US
cg.issue8en_US
cg.journalTropical Animal Health and Productionen_US
cg.reviewStatusPeer Reviewen_US
cg.subject.actionAreaResilient Agrifood Systemsen_US
cg.subject.ilriANIMAL BREEDINGen_US
cg.subject.ilriGENETICSen_US
cg.subject.ilriSHEEPen_US
cg.subject.ilriSMALL RUMINANTSen_US
cg.subject.impactAreaNutrition, health and food securityen_US
cg.subject.impactPlatformNutrition, Health and Food Securityen_US
cg.subject.sdgSDG 2 - Zero hungeren_US
cg.volume56en_US
dc.contributor.authorBesufkad, S.en_US
dc.contributor.authorGoshme, S.en_US
dc.contributor.authorAbebe, A.en_US
dc.contributor.authorBisrat, A.en_US
dc.contributor.authorGetachew, Tesfayeen_US
dc.contributor.authorZewdie, T.en_US
dc.contributor.authorLemma, S.en_US
dc.contributor.authorAreaya, A.en_US
dc.contributor.authorGizaw, Solomonen_US
dc.date.accessioned2024-09-23T07:25:25Zen_US
dc.date.available2024-09-23T07:25:25Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/152335en_US
dc.titleEstimates of genetic parameters for growth traits in Dorper crossbred sheep populationen_US
dcterms.abstractThe study was carried out to estimate genetic and phenotypic parameters for growth traits in Dorper crossbred sheep. The data set consisted of 5717 growth records from 1347 individuals of Dorper 50% crossbred sheep descended from 43 sires and 344 dams born between the years 2012 and 2022 at Debre Birhan Agricultural Research Center sheep research station, Ethiopia. Studied traits were birth weight (WT0), weaning weight (WT3), six months weight (WT6), yearling weight (WT12), average daily gain from birth to weaning (ADG1), average daily gain from weaning to six months (ADG2), average daily gain from six months to yearling (ADG3). The (co)variance components were estimated by fitting six different univariate animal models using Average Information Restricted Maximum Likelihood (AI-REML) procedure. Contrary to the genetic trend, phenotypic performance for all studied traits showed a declining trend over the years. Direct heritability estimates of 0.10 ± 0.06, 0.29 ± 0.09, 0.37 ± 0.10, 0.10 ± 0.09, 0.43 ± 0.15, 0.04 ± 0.05, and 0.14 ± 0.09 were obtained for WT0, WT3, WT6, WT12, ADG1, ADG2 and ADG3, respectively. Genetic correlations among the studied traits ranged from -0.43 (between ADG2 and ADG3) to 0.99 (between WT3 and ADG1). Selection for weaning, six months and pre-weaning average daily gain would be expected to yield good response as these traits were found moderately heritable. Strong to moderate genetic correlation of WT3 with WT6, WT12, and ADG1 suggested that selection based on WT3 would result in improvement of other growth traits due to correlated response.en_US
dcterms.accessRightsLimited Accessen_US
dcterms.audienceAcademicsen_US
dcterms.audienceScientistsen_US
dcterms.available2024-09-20en_US
dcterms.bibliographicCitationBesufkad, S., Goshme, S., Abebe, A., Bisrat, A., Abebe, A., Getachew, T., Zewdie, T., Lemma, S., Areaya, A. and Gizaw, S. 2024. Estimates of genetic parameters for growth traits in Dorper crossbred sheep population. Tropical Animal Health and Production 56(8): 264.en_US
dcterms.extent264en_US
dcterms.issued2024-11-01en_US
dcterms.languageenen_US
dcterms.licenseCopyrighted; all rights reserveden_US
dcterms.publisherSpringeren_US
dcterms.subjectanimal breedingen_US
dcterms.subjectsheepen_US
dcterms.subjectsmall ruminantsen_US
dcterms.subjectgeneticsen_US
dcterms.typeJournal Articleen_US

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