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Marshall, KarenGibson, John P.Okeyo Mwai, AllyMwacharo, Joram M.Haile, AynalemGetachew, TesfayeMrode, Raphael A.Kemp, Stephen J.[Livestock genomics for developing countries―African examples in practice]Livestock genomics for developing countries―African examples in practice

Lukuyu, Margaret N.Gibson, John P.Savage, D.B.Rao, E.J.O.Ndiwa, Nicholas N.Duncan, Alan J.[Farmers’ perceptions of dairy cattle breeds, breeding and feeding strategies: A case of smallholder dairy farmers in western Kenya]Farmers’ perceptions of dairy cattle breeds, breeding and feeding strategies: A case of smallholder dairy farmers in western Kenya

Nimbkar, C.Gibson, John P.Okeyo Mwai, AllyBoettcher, P.J.Sölkner, J.[Sustainable use and genetic improvement]Sustainable use and genetic improvement

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, AllyNi, 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]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, AllyGibson, John P.[Genetic tests for estimating dairy breed proportion and parentage assignment in East African crossbred cattle]Genetic tests for estimating dairy breed proportion and parentage assignment in East African crossbred cattle

Gastrointestinal (GI) parasitic infection is the main health constraint for small ruminant production, causing loss of weight and/or death. Red Maasai sheep have adapted to a tropical environment where extreme parasite exposure is a constant, especially with highly pathogenic Haemonchus contortus...


Benavides, M.V.Sonstegard, T.S.Kemp, Stephen J.Mugambi, J.M.M.Gibson, John P.Baker, R.L.Hanotte, Olivier H.Marshall, KarenTassell, C. van[Identification of novel loci associated with gastrointestinal parasite resistance in a red Maasai x Dorper backcross population]Identification of novel loci associated with gastrointestinal parasite resistance in a red Maasai x Dorper backcross population

To evaluate the Weitzman approach for assessing alternative conservation strategies for breed ( population ) diversity, we used genetic distance measures between 49 African cattle breeds divided into two groups of 26 taurine ( Bos taurus ) and sanga ( Bos taurus×Bos indicus ) breeds and 23 zebu ...


Reist-Marti, S.B.Simianer, H.Gibson, John P.Hanotte, Olivier H.Rege, J.E.O.[Weitzman's approach and conservation of breed diversity: An application to African cattle breeds]Weitzman's approach and conservation of breed diversity: An application to African cattle breeds

A marker-assisted introgression (MAI) experiment was conducted to transfer trypanotolerance quantitative trait loci (QTL) from a donor mouse strain, C57BL/6, into a recipient mouse strain, A/J. The objective was to assess the effect of three previously identified chromosomal regions on mouse chro...


Koudande, O.D.Thomson, P.C.Bovenhuis, H.Iraqi, F.A.Gibson, John P.Arendonk, Johan A.M. van[Biphasic survival analysis of trypanotolerance QTL in mice]Biphasic survival analysis of trypanotolerance QTL in mice

The polymorphism at the PvuII recognition site in the ESR gene showed no statistically significant association with sow productivity traits in a Meishan x Large White F2 population. Estimates of the effect on litter size were. however, in the opposite direction and statistically different from pr...


Gibson, John P.Jiang, Z.H.Robinson, J.A.B.Archibald, A.L.Haley, C.S.[No detectable association of the ESR Pvull mutation with sow productivity in a Meishan x Large White F2 population]No detectable association of the ESR Pvull mutation with sow productivity in a Meishan x Large White F2 population
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]Genetic evaluation of test-day milk yields from smallholder dairy production systems in Kenya using genomic relationships

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