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

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cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.affiliationDebre Birhan Agricultural Research Centeren
cg.contributor.affiliationInternational Centre for Agricultural Research in the Dry Areasen
cg.contributor.affiliationInternational Livestock Research Instituteen
cg.contributor.donorAmhara Agricultural Research Institute, Ethiopiaen
cg.contributor.donorEthiopian Institute of Agricultural Researchen
cg.coverage.countryEthiopia
cg.coverage.iso3166-alpha2ET
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.creator.identifierTesfaye Getachew Mengistu: 0000-0002-0544-6314
cg.creator.identifierSolomon Gizaw: 0000-0002-0600-7188
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1007/s11250-024-04170-0en
cg.isijournalISI Journalen
cg.issn0049-4747en
cg.issue8en
cg.journalTropical Animal Health and Productionen
cg.reviewStatusPeer Reviewen
cg.subject.actionAreaResilient Agrifood Systems
cg.subject.ilriANIMAL BREEDINGen
cg.subject.ilriGENETICSen
cg.subject.ilriSHEEPen
cg.subject.ilriSMALL RUMINANTSen
cg.subject.impactAreaNutrition, health and food security
cg.subject.impactPlatformNutrition, Health and Food Security
cg.subject.sdgSDG 2 - Zero hungeren
cg.volume56en
dc.contributor.authorBesufkad, S.en
dc.contributor.authorGoshme, S.en
dc.contributor.authorAbebe, A.en
dc.contributor.authorBisrat, A.en
dc.contributor.authorGetachew, Tesfayeen
dc.contributor.authorZewdie, T.en
dc.contributor.authorLemma, S.en
dc.contributor.authorAreaya, A.en
dc.contributor.authorGizaw, Solomonen
dc.date.accessioned2024-09-23T07:25:25Zen
dc.date.available2024-09-23T07:25:25Zen
dc.identifier.urihttps://hdl.handle.net/10568/152335
dc.titleEstimates of genetic parameters for growth traits in Dorper crossbred sheep populationen
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
dcterms.accessRightsLimited Access
dcterms.audienceAcademicsen
dcterms.audienceScientistsen
dcterms.available2024-09-20
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
dcterms.extent264en
dcterms.issued2024-11-01
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherSpringeren
dcterms.subjectanimal breedingen
dcterms.subjectsheepen
dcterms.subjectsmall ruminantsen
dcterms.subjectgeneticsen
dcterms.typeJournal Article

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