Community-based breeding programs can realize sustainable genetic gain and economic benefits in tropical dairy cattle systems

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cg.contributor.affiliationInternational Center for Agricultural Research in the Dry Areasen_US
cg.contributor.affiliationHaramaya Universityen_US
cg.contributor.affiliationWoldia Universityen_US
cg.contributor.affiliationEthiopian Institute of Agricultural Research, Holeta Agricultural Research Centeren_US
cg.contributor.donorEthiopian Institute of Agricultural Researchen_US
cg.contributor.donorHaramaya Universityen_US
cg.contributor.donorCGIAR Trust Funden_US
cg.contributor.initiativeSustainable Animal Productivityen_US
cg.coverage.countryEthiopiaen_US
cg.coverage.iso3166-alpha2ETen_US
cg.coverage.regionEastern Africaen_US
cg.creator.identifierTesfaye Getachew Mengistu: 0000-0002-0544-6314en_US
cg.identifier.doihttps://doi.org/10.3389/fgene.2024.1106709en_US
cg.isijournalISI Journalen_US
cg.issn1664-8021en_US
cg.journalFrontiers in Geneticsen_US
cg.reviewStatusPeer Reviewen_US
cg.subject.actionAreaResilient Agrifood Systemsen_US
cg.subject.impactAreaPoverty reduction, livelihoods and jobsen_US
cg.subject.sdgSDG 1 - No povertyen_US
cg.volume15en_US
dc.contributor.authorHunde, Direbaen_US
dc.contributor.authorTadesse, Yosefen_US
dc.contributor.authorTadesse, Millionen_US
dc.contributor.authorGuangul, Solomonen_US
dc.contributor.authorGetachew, Tesfayeen_US
dc.date.accessioned2025-01-20T17:14:34Zen_US
dc.date.available2025-01-20T17:14:34Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/169482en_US
dc.titleCommunity-based breeding programs can realize sustainable genetic gain and economic benefits in tropical dairy cattle systemsen_US
dcterms.abstractImplementing an appropriate breeding program is crucial to control fluctuation in performance, enhance adaptation, and further improve the crossbred population of dairy cattle. Five alternative breeding programs (BPs) were modeled considering available breeding units in the study area, the existing crossbreeding practices, and the future prospects of dairy research and development in Ethiopia. The study targeted 143,576 crossbred cows of 54,822 smallholder households in the Arsi, West Shewa, and North Shewa zones of the Oromia Region, as well as the North Shewa zone of the Amhara Region. The alternative BPs include conventional on-station progeny testing (SPT), conventional on-farm progeny testing (FPT), conventional on-station and on-farm progeny testing (SFPT), genomic selection (GS), and genomic progeny testing (GPT). Input parameters for modeling the BPs were taken from the analysis of long-term data obtained from the Holetta Agricultural Research Center and a survey conducted in the study area. ZPLAN+ software was used to predict estimates of genetic gain (GG) and discounted profit for goal traits. The predicted genetic gains (GGs) for milk yield (MY) per year were 34.52 kg, 49.63 kg, 29.35 kg, 76.16 kg, and 77.51 kg for SPT, FPT, SFPT, GS, and GPT, respectively. The GGs of the other goal traits range from 0.69 to 1.19 days per year for age at first calving, from 1.20 to 2.35 days per year for calving interval, and from 0.06 to 0.12 days per year for herd life. Compared to conventional BPs, genomic systems (GPT and GS) enhanced the GG of MY by 53%–164%, reduced generation interval by up to 21%, and improved the accuracy of test bull selection from 0.33 to 0.43. The discounted profit of the BPs varied from 249.58 Ethiopian Birr (ETB, 1 USD = 39.55696 ETB) per year in SPT to 689.79 ETB per year in GS. Genomic selection outperforms SPT, SFPT, and FPT by 266, 227%, and 138% of discounted profit, respectively. Community-based crossbreeding accompanied by GS and gradual support with progeny testing (GPT) is recommended as the main way forward to attain better genetic progress in dairy farms in Ethiopia and similar scenarios in other tropical countries.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.available2024-05-16en_US
dcterms.bibliographicCitationDireba Hunde, Yosef Tadesse, Million Tadesse, Solomon Guangul, Tesfaye Getachew. (16/5/2024). Community-based breeding programs can realize sustainable genetic gain and economic benefits in tropical dairy cattle systems. Frontiers in Genetics, 15.en_US
dcterms.formatPDFen_US
dcterms.languageenen_US
dcterms.licenseCC-BY-4.0en_US
dcterms.publisherFrontiers in Geneticsen_US
dcterms.subjectsmallholdersen_US
dcterms.subjectgenetic gainen_US
dcterms.subjectaccuracyen_US
dcterms.subjectcommunity-based breedingen_US
dcterms.subjectdiscounted profiten_US
dcterms.typeJournal Articleen_US

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