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dc.contributorHaile, Aynalemen_US
dc.contributorGetachew, Tesfayeen_US
dc.contributorRekik, Mouraden_US
dc.contributorRischkowsky, Barbaraen_US
dc.creatorMueller, Joaquin Pabloen_US
dc.identifier.citationJoaquin Pablo Mueller, Aynalem Haile, Tesfaye Getachew, Mourad Rekik, Barbara Rischkowsky. (5/3/2019). Genetic progress and economic benefit of sheep community-based breeding programmes out- and up-scaling options in Ethiopia.en_US
dc.description.abstractThe expected genetic progress and economic benefit from implementing three sheep Community Based Breeding Programme (CBBP) out- and up-scaling strategies were investigated. Strategy 1 is to replicate average existing CBBPs, Strategy 2 is to increase the number of breeding males produced by average CBBPs and Strategy 3 is to intensify the use of breeding males with artificial insemination (AI). The strategies were modelled using Ethiopian Menz sheep field and market data and genetic progress and economic benefit were calculated using gene flow techniques. Different breeding program durations (T), planning horizons (H) and discount rates (r) were tested when breeding objective and selection criterion is six-month weight. Genetic progress expected in average existing CBBPs is 0.11 kg/year in the Nucleus and accumulated discounted economic benefit is 54560 $ with a return to investment of 5.2 when T = H = 20 years and r = 0.07. Thus, Strategy 1, replicating ongoing CBBPs, is highly beneficial. Strategy 2 was tested assuming 200, instead of 32, rams distributed to Base herds from the Nucleus and an additional cost of these rams of 10% their present market value, both assumptions considered realistic situations. Return to investment with this strategy results in 24.7 $ per $ invested. Additional cost of improved rams would need to be 2.5 times higher of current market value to make this strategy unprofitable. Strategy 3, taking advantage of AI, was tested in two ways, using fewer males to increase selection differential in nucleus (Case A) and increasing the number of females served with improved males in general flocks (Case B). Operational feasible AI programmes were modelled for both cases. Genetic progress of six-month weight in the Nucleus of a CBBP increase to 0.14 kg/year and return to investment results in 2.4 for Case A and 1.6 for Case B. Thus, Strategy 3 increases genetic progress by almost 30% of the expected genetic progress in average current CBBPs but return to investment is lower than in strategies without AI, this is due to substantial additional costs of AI programmes.en_US
dc.subjecteconomic benefiten_US
dc.subjectbreeding programmeen_US
dc.titleGenetic progress and economic benefit of sheep community-based breeding programmes out- and up-scaling options in Ethiopiaen_US
dc.typeJournal Articleen_US
cg.creator.idHaile, Aynalem: 0000-0001-5914-0487en_US
cg.creator.idGetachew, Tesfaye: 0000-0002-0544-6314en_US
cg.creator.idRekik, Mourad: 0000-0001-7455-2017en_US
cg.creator.idRischkowsky, Barbara: 0000-0002-0035-471Xen_US
cg.subject.agrovocartificial inseminationen_US
cg.subject.agrovocgenetic improvementen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerNational Institute for Agricultural Technology - INTAen_US
cg.contributor.crpCGIAR Research Program on Livestock Agri-Food Systems - Livestocken_US
cg.contributor.funderInternational Livestock Research Institute - ILRIen_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.coverage.regionEastern Africaen_US
dc.identifier.statusLimited accessen_US

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