Impact of climate change on the productivity and adaptation of Ethiopia's Bonga and Menz sheep breeds

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cg.authorship.typesNot CGIAR developing country instituteen
cg.contributor.affiliationDebre Birhan Agricultural Research Center, Ethiopiaen
cg.contributor.affiliationInternational Centre for Agricultural Research in the Dry Areasen
cg.contributor.affiliationInternational Livestock Research Instituteen
cg.contributor.affiliationSouthwest Ethiopia Agricultural Research Institute, Ethiopiaen
cg.contributor.affiliationAddis Ababa Universityen
cg.contributor.donorWorld Banken
cg.contributor.donorCGIAR Trust Funden
cg.coverage.countryEthiopia
cg.coverage.countryJordan
cg.coverage.iso3166-alpha2ET
cg.coverage.iso3166-alpha2JO
cg.creator.identifierZeleke Tesema: 0000-0003-0226-8572en
cg.creator.identifierTesfaye Getachew Mengistu: 0000-0002-0544-6314en
cg.creator.identifierMourad Rekik: 0000-0001-7455-2017en
cg.creator.identifierBarbara Rischkowsky: 0000-0002-0035-471Xen
cg.creator.identifierShanbel Besufkad: 0000-0002-8984-9718en
cg.creator.identifierZelalem Abate: 0000-0001-6040-9308en
cg.creator.identifierTamirat Bekele Jimma: 0000-0003-1302-8507en
cg.creator.identifierTeferi Demissie: 0000-0002-0228-1972en
cg.creator.identifierDawit Solomon: 0000-0002-6839-6801en
cg.creator.identifierAynalem: 0000-0001-5914-0487en
cg.identifier.doihttps://doi.org/10.1016/j.livsci.2024.105633en
cg.journalLivestock Scienceen
cg.volume292en
dc.contributor.authorTesema, Zelekeen
dc.contributor.authorGetachew, Tesfayeen
dc.contributor.authorBelay, Berhanuen
dc.contributor.authorAmha, Yosefen
dc.contributor.authorRekik, Mouraden
dc.contributor.authorRischkowsky, Barbara A.en
dc.contributor.authorBesufkad, Shanbelen
dc.contributor.authorAbate, Zelalemen
dc.contributor.authorBekele, Tamraten
dc.contributor.authorDemissie, Teferien
dc.contributor.authorSolomon, Dawiten
dc.contributor.authorHaile, Aynalemen
dc.date.accessioned2025-01-10T16:15:17Zen
dc.date.available2025-01-10T16:15:17Zen
dc.identifier.urihttps://hdl.handle.net/10568/168839
dc.titleImpact of climate change on the productivity and adaptation of Ethiopia's Bonga and Menz sheep breedsen
dcterms.abstractThis study aimed to derive novel phenotypes of sheep resilience and response to climate change, to estimate genetic parameters for novel phenotypes, and to evaluate the genetic correlation of resilience indicator traits with economically important traits. This study used the 14 years (2009–2022) of productive, reproductive, pedigree, and climate data to derive resilience and stability phenotypes using a random regression model fitting to the reaction norm function and genetic parameter estimates were estimated from a linear mixed model. The changes in productive and reproductive performance of both sheep breeds in response to environmental descriptors ((temperature-humidity index (THI) and rainfall (RF)) were found to be minimal and not significantly (P > 0.05) different from zero, suggesting that most of these traits showed stable performance independent of THI and RF. The direct heritability (h2) estimate (0.101–0.163) for the resilience of Bonga sheep in terms of weight gain, Kleiber ratio (KR), total lamb birth weight, and annual reproduction rate (ARR) indicated the presence of substantial genetic variance. Nevertheless, the h2 for resilience and stability phenotypes of Bonga sheep in terms of other reproductive traits were found to be low (0.0001 – 0.098). The highest h2 for resilience of Menz sheep was observed for total lamb weaning weight (0.416), followed by body weight (0.145), KR (0.114), and ARR (0.110). The genetic progress of THI-based resilience was favorable for most of the traits of Bonga sheep. The genetic trend for rainfall-based resilience for most productive and reproductive traits of Menz sheep was genetically decreasing slightly. In conclusion, the influence of heat stress and rainfall on the performance of both sheep breeds is minimal. But different lambs and ewes react differently to a changing climate, and there is some level of genetic contribution to the variability of reaction for some traits. This suggests the possibility of improving the resilience of sheep to weather variation through within-breed selection to sustain these sheep breeds' optimal production and reproduction performances in changing climate conditions, although the influence is minimal. Besides, the contribution of the environment to phenotypic variation of resilience and stability phenotypes was high for most traits, which calls for management intervention to enhance sheep resilience to climate change.en
dcterms.accessRightsOpen Access
dcterms.available2024-12-22en
dcterms.bibliographicCitationTesema Z.Getachew T. Belay B. Amha Y. Rekik M. Rischkowsky B. Besufkad S. Abate Z. Bekele T. Demissie T. Solomon D. Haile A. 2024. Impact of climate change on the productivity and adaptation of Ethiopia's Bonga and Menz sheep breeds. Livestock Science: 292-105633.en
dcterms.issued2025-02en
dcterms.languageen
dcterms.licenseCC-BY-NC-ND-4.0
dcterms.publisherElsevieren
dcterms.subjectclimate changeen
dcterms.subjectGenetic correlationen
dcterms.subjectgenetic variationen
dcterms.subjectheritabilityen
dcterms.subjectresilienceen
dcterms.subjectStabilityen
dcterms.typeJournal Article

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