Breeding programs for smallholder sheep farming systems: I. Evaluation of alternative designs of breeding schemes

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cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationInternational Livestock Research Instituteen
cg.contributor.affiliationInternational Center for Agricultural Research in the Dry Areasen
cg.contributor.affiliationUniversität Hohenheimen
cg.contributor.affiliationWageningen University & Researchen
cg.contributor.crpLivestock and Fish
cg.creator.identifierSolomon Gizaw: 0000-0002-0600-7188en
cg.creator.identifierTadelle Dessie: 0000-0002-1630-0417en
cg.creator.identifierBarbara Rischkowsky: 0000-0002-0035-471Xen
cg.creator.identifierAynalem: 0000-0001-5914-0487en
cg.creator.identifierAlly Okeyo Mwai: 0000-0003-2379-7801en
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1111/jbg.12101en
cg.isijournalISI Journalen
cg.issn0931-2668en
cg.issue5en
cg.journalJournal of Animal Breeding and Geneticsen
cg.reviewStatusPeer Reviewen
cg.subject.ilriANIMAL BREEDINGen
cg.subject.ilriFARMING SYSTEMSen
cg.subject.ilriGENETICSen
cg.subject.ilriSHEEPen
cg.subject.ilriSMALL RUMINANTSen
cg.volume131en
dc.contributor.authorGizaw, Solomonen
dc.contributor.authorRischkowsky, Barbara A.en
dc.contributor.authorValle-Zárate, A.en
dc.contributor.authorHaile, Aynalemen
dc.contributor.authorArendonk, Johan A.M. vanen
dc.contributor.authorOkeyo Mwai, Allyen
dc.contributor.authorDessie, Tadelleen
dc.date.accessioned2015-07-27T08:16:02Zen
dc.date.available2015-07-27T08:16:02Zen
dc.identifier.urihttps://hdl.handle.net/10568/67393
dc.titleBreeding programs for smallholder sheep farming systems: I. Evaluation of alternative designs of breeding schemesen
dcterms.abstractVillage- and central nucleus-based schemes were simulated and evaluated for their relative bio-economic efficiencies, using Ethiopia's Menz sheep as example. The schemes were: village-based 2-tier (Scheme-1) and 1-tier (Scheme-2) cooperative village breeding schemes, dispersed village-based nuclei scheme (Scheme-3), conventional 2-tier central nucleus-based scheme (Scheme-4), and schemes linking a central nucleus and village multiplier nuclei with selection in central nucleus (Scheme-5) or in both central and village nuclei (Scheme-6). Among village-based schemes, Scheme-1 gave the highest genetic progress, while Scheme-2 was economically the most efficient with genetic gain in the breeding objective of Birr 5.6 and a profit of Birr 37.2/ewe/year. The central nucleus schemes were more efficient than the village schemes. Scheme-4 was the most efficient with genetic gain in the breeding objective of Birr 13.5 and a profit of Birr 71.2, but is operationally more difficult as it requires a very large central nucleus. The choice between village and central nucleus-based schemes would depend on local conditions (availability of infrastructure, logistics and technical knowhow and support). Linking central nucleus with village-based nuclei (Scheme-6) would be a feasible option to overcome the operational difficulties of the conventional central nucleus scheme. If a village-based breeding program is envisaged as should be the 1st step in most low-input systems, then Scheme-2 is the most efficient. To scale out to an entire Menz breed level, Scheme-3 would be recommended.en
dcterms.accessRightsLimited Access
dcterms.audienceScientistsen
dcterms.available2014-06-19en
dcterms.bibliographicCitationGizaw, S., Rischkowsky, B., Valle-Zárate, A., Haile, A., Arendonk, J.A.M. van, Okeyo, A.M. and Dessie, T. 2014. Breeding programs for smallholder sheep farming systems: I. Evaluation of alternative designs of breeding schemes. Journal of Animal Breeding and Genetics 131(5):341–349.en
dcterms.extentp. 341-349en
dcterms.issued2014-10en
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherWileyen
dcterms.subjectanimal breedingen
dcterms.subjectsheepen
dcterms.typeJournal Article

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