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dc.creatorHaile, Aynalemen_US
dc.date2021-11-02en_US
dc.date.accessioned2021-12-05T08:52:36Z
dc.date.available2021-12-05T08:52:36Z
dc.identifierhttps://mel.cgiar.org/dspace/limiteden_US
dc.identifier.citationAynalem Haile. (2/11/2021). Evaluation of the Progress of Community-Based Sheep Genetic Improvement Program in Horro Guduru Zone.en_US
dc.identifier.urihttps://hdl.handle.net/20.500.11766/66535
dc.description.abstractThe study was conducted Horro district on farmers’ flocks of Horro sheep community-based sheep breeding program (CBBP) to evaluate productive performances and estimate the genetic parameter in Horro sheep in Ethiopia. A total of 2480 birth weight (BWt), 2441 three month weight (3MWt), 770 six-month weight (6MWt), 307 for both lambing interval (LI), and annual reproductive rates (ARR) traits produced from 1398 ewes,101 rams were used. The least-squares means analysis was performed using the general linear model procedure of SAS 2016 (SAS, Version 9.4) to determine the effects of fixed factors that were found to be an important source of variation in this study. The overall least-square means of BWt, 3MWt, 6MWt, LI, and ARR under varied from 2.76±0.01, 12.33±0.03, 16.57±0.07, 8.13±0.06, and 2.02±0.02, respectively. Variance components and genetic parameters were estimated for growth traits: Birth weight (BWt), three-month weight (3MWt), six-month weight (6MWt), and reproductive traits: Annual Reproductive Trait (ARR) and lambing interval (LI) in indigenous Ethiopian Horro sheep using VCE 2.4.6 under multivariate analysis. Multivariate analysis was used to estimate the genetic correlation between traits. Estimates of direct heritability obtained from the animal model were 0.16±0.01, 0.19±0.02, 0.28±0.35, 0.01±0.01 and 0.01±0.02 for BWt, 3MWt 6MWt, ARR and LI respectively. The genetic correlation between BWt and 3MWt, BWt and 6MWt, and 3MWt and 6MWt were 0.04, 0.01, and 0.07, respectively. The overall sheep flock size of the study areas was 15.09±0.43/household (ranging from 7 to 33). The proportion of male to female breeding ram and ewe was 1:6.34 which may affect the genetic trends due to lack of intensive breeding ram selection.The numbers of non ear-tagged animals between the two kebeles in the present study were significant at p<0.05, for laku 1.76±0.23 and Gitilo 2.65±0.21 respectively. The overall mean flock size of CBBP participants and non CBBP participants across the two cooperatives were 15.09±4.8 and 9.98±2.47 respectively. at p<0.05. All essential start-up elements of the programme were in place, exept that there were some problems of technical emplimantation forenstance management of keeping flock record books and weak relationship between the local government institution (Woreda live stock office). The major challenges observed during the study were feed shortage, disease prvelence, genetic dilution due to unclear separation of the flock of CBBP from non-CBBP.en_US
dc.formatPDFen_US
dc.languageenen_US
dc.rightsCopyrighted; all rights reserveden_US
dc.subjectcommunity-based breeding programs (cbbps)en_US
dc.subjectgrowth performanceen_US
dc.subjectgenetic parameteren_US
dc.subjectgenetic trendsen_US
dc.subjectSheepen_US
dc.titleEvaluation of the Progress of Community-Based Sheep Genetic Improvement Program in Horro Guduru Zoneen_US
dc.typeThesisen_US
cg.creator.idHaile, Aynalem: 0000-0001-5914-0487en_US
cg.creator.ID-typeORCIDen_US
cg.subject.agrovocevaluationen_US
cg.subject.agrovocimprovementen_US
cg.subject.agrovocsheepen_US
cg.subject.agrovocgenetic improvementen_US
cg.subject.agrovochorro sheepen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerCGIAR Research Program on Dryland Systems - DSen_US
cg.contributor.centerManouba University, National School of Veterinary Medicine of Sidi Thabet - ENMVen_US
cg.contributor.crpCGIAR Research Program on Livestock Agri-Food Systems - LAFSen_US
cg.contributor.funderInternational Livestock Research Institute - ILRIen_US
cg.contributor.funderCGIAR Fund Council - CGIAR - FCen_US
cg.contributor.projectCGIAR Research Program on Livestock Agri-Food Systemsen_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.date.embargo-end-dateTimelessen_US
cg.coverage.regionEastern Africaen_US
cg.coverage.countryETen_US
cg.coverage.start-date2019-11-04en_US
cg.coverage.end-date2021-11-02en_US
cg.contactA.Haile@cgiar.orgen_US
dc.identifier.statusTimeless limited accessen_US
mel.project.openhttps://mel.cgiar.org/projects/237en_US


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