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

Simple item page
cg.authorship.typesNot CGIAR developing country instituteen_US
cg.contributor.affiliationDebre Birhan Agricultural Research Center, Ethiopiaen_US
cg.contributor.affiliationInternational Centre for Agricultural Research in the Dry Areasen_US
cg.contributor.affiliationInternational Livestock Research Instituteen_US
cg.contributor.affiliationSouthwest Ethiopia Agricultural Research Institute, Ethiopiaen_US
cg.contributor.affiliationAddis Ababa Universityen_US
cg.contributor.donorWorld Banken_US
cg.contributor.donorCGIAR Trust Funden_US
cg.coverage.countryEthiopiaen_US
cg.coverage.countryJordanen_US
cg.coverage.iso3166-alpha2ETen_US
cg.coverage.iso3166-alpha2JOen_US
cg.creator.identifierZeleke Tesema: 0000-0003-0226-8572en_US
cg.creator.identifierTesfaye Getachew Mengistu: 0000-0002-0544-6314en_US
cg.creator.identifierMourad Rekik: 0000-0001-7455-2017en_US
cg.creator.identifierBarbara Rischkowsky: 0000-0002-0035-471Xen_US
cg.creator.identifierShanbel Besufkad: 0000-0002-8984-9718en_US
cg.creator.identifierZelalem Abate: 0000-0001-6040-9308en_US
cg.creator.identifierTamirat Bekele Jimma: 0000-0003-1302-8507en_US
cg.creator.identifierTeferi Demissie: 0000-0002-0228-1972en_US
cg.creator.identifierDawit Solomon: 0000-0002-6839-6801en_US
cg.creator.identifierAynalem: 0000-0001-5914-0487en_US
cg.identifier.doihttps://doi.org/10.1016/j.livsci.2024.105633en_US
cg.journalLivestock Scienceen_US
cg.volume292en_US
dc.contributor.authorTesema, Zelekeen_US
dc.contributor.authorGetachew, Tesfayeen_US
dc.contributor.authorBelay, Berhanuen_US
dc.contributor.authorAmha, Yosefen_US
dc.contributor.authorRekik, Mouraden_US
dc.contributor.authorRischkowsky, Barbara A.en_US
dc.contributor.authorBesufkad, Shanbelen_US
dc.contributor.authorAbate, Zelalemen_US
dc.contributor.authorBekele, Tamraten_US
dc.contributor.authorDemissie, Teferien_US
dc.contributor.authorSolomon, Dawiten_US
dc.contributor.authorHaile, Aynalemen_US
dc.date.accessioned2025-01-10T16:15:17Zen_US
dc.date.available2025-01-10T16:15:17Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/168839en_US
dc.titleImpact of climate change on the productivity and adaptation of Ethiopia's Bonga and Menz sheep breedsen_US
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_US
dcterms.accessRightsOpen Accessen_US
dcterms.available2024-12-22en_US
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_US
dcterms.issued2025-02en_US
dcterms.languageenen_US
dcterms.licenseCC-BY-NC-ND-4.0en_US
dcterms.publisherElsevieren_US
dcterms.subjectclimate changeen_US
dcterms.subjectGenetic correlationen_US
dcterms.subjectgenetic variationen_US
dcterms.subjectheritabilityen_US
dcterms.subjectresilienceen_US
dcterms.subjectStabilityen_US
dcterms.typeJournal Articleen_US

Files

License bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

AICCRA Journal Articles