Cost-effective high-density (HD) genotypes of livestock species can be obtained by genotyping a proportion of the population using a HD panel and the remainder using a cheaper low-density panel, and then imputing the missing genotypes that are not directly assayed in the low-density panel. The ef...
Aliloo, H.
,
Mrode, Raphael A.
,
Okeyo Mwai, Ally
,
Ni, G.
,
Goddard, M.E.
,
Gibson, John P.
,
[The feasibility of using low-density marker panels for genotype imputation and genomic prediction of crossbred dairy cattle of East Africa]
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The feasibility of using low-density marker panels for genotype imputation and genomic prediction of crossbred dairy cattle of East Africa
Background:Smallholder dairy farming in much of the developing world is based on the use of crossbred cows that combine local adaptation traits of indigenous breeds with high milk yield potential of exotic dairy breeds. Pedigree recording is rare in such systems which means that it is impossible ...
Strucken, E.M.
,
Al-Mamun, H.A.
,
Esquivelzeta-Rabell, C.
,
Gondro, C.
,
Okeyo Mwai, Ally
,
Gibson, John P.
,
[Genetic tests for estimating dairy breed proportion and parentage assignment in East African crossbred cattle]
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Genetic tests for estimating dairy breed proportion and parentage assignment in East African crossbred cattle
Ojango, Julie M.K.
,
Baltenweck, Isabelle
,
Mrode, Raphael A.
,
Muigai, Anne W.T.
,
Haile, Aynalem
,
Okeyo Mwai, Ally
,
[Integrating socio-economic attributes of rural communities in small ruminant improvement programs in sub-Saharan Africa]
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Integrating socio-economic attributes of rural communities in small ruminant improvement programs in sub-Saharan Africa
Gibson, John P.
,
Rege, J.E.O.
,
Okeyo Mwai, Ally
,
Ojango, Julie M.K.
,
[Overview of the Dairy Genetics East Africa (DGEA) project]
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Overview of the Dairy Genetics East Africa (DGEA) project
High levels of inbreeding in East African dairy cattle are a potential concern because of use of a limited range of imported germplasm coupled with strong selection, especially by disease, and sparse performance recording. To address this, genetic relationships and breed composition in an admixed...
Gorbach, D.M.
,
Makgahlela, M.L.
,
Reecy, J.M.
,
Kemp, Stephen J.
,
Baltenweck, Isabelle
,
Ouma, R.
,
Okeyo Mwai, Ally
,
Marshall, Karen
,
Murdoch, B.
,
Moore, S.
,
Rothschild, Max F.
,
[Use of SNP genotyping to determine pedigree and breed composition of dairy cattle in Kenya]
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Use of SNP genotyping to determine pedigree and breed composition of dairy cattle in Kenya
Ojango, Julie M.K.
,
Mrode, Raphael A.
,
Rege, J.E.O.
,
Mujibi, D.
,
Strucken, E.M.
,
Gibson, John P.
,
Okeyo Mwai, Ally
,
[Genetic evaluation of test-day milk yields from smallholder dairy production systems in Kenya using genomic relationships]
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Genetic evaluation of test-day milk yields from smallholder dairy production systems in Kenya using genomic relationships
Due to the absence of accurate pedigree information, it has not been possible to implement genetic evaluations for crossbred cattle in African small-holder systems. Genomic selection techniques that do not rely on pedigree information could, therefore, be a useful alternative. The objective of th...
Brown, A.
,
Ojango, Julie M.K.
,
Gibson, John P.
,
Coffey, M.
,
Okeyo Mwai, Ally
,
Mrode, Raphael A.
,
[Short communication: Genomic selection in a crossbred cattle population using data from the Dairy Genetics East Africa Project]
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Short communication: Genomic selection in a crossbred cattle population using data from the Dairy Genetics East Africa Project
Okeyo Mwai, Ally
,
[Opportunities, challenges and prospects for dairy goat improvement by the Poor: The Kenyan experience]
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Opportunities, challenges and prospects for dairy goat improvement by the Poor: The Kenyan experience