The objective of this study was to examine the effect of different concentrations of trehalose and raffinose in Tris-citric acid-glucose (TCG) egg yolk extender for the sperm freezability of Red Maasai sheep, another African breed- the Dorper and their crosses. The results showed that Red Maasai,...
Yamashiro, H.
,
Wando, J.R.
,
Okoth, S.
,
Sugimura, S.
,
Moisyadi, S.
,
Sato, E.
,
Rege, J.E.O.
,
Okeyo Mwai, Ally
,
[A case study on cryopreservation of African sheep semen for the Red Maasai, Dorper breeds and their crosses]
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A case study on cryopreservation of African sheep semen for the Red Maasai, Dorper breeds and their crosses
A meta-analysis of 84 published reports on goats was conducted to calculate weighted and unweighted average direct heritability (ha2), maternal genetic effect (hm2), common environmental effect (c2), repeatability (R), genetic (rg) and phenotypic (rp) correlations for growth, reproduction and mil...
Jembere, T.
,
Dessie, Tadelle
,
Rischkowsky, Barbara A.
,
Kebede, K.
,
Okeyo Mwai, Ally
,
Haile, Aynalem
,
[Meta-analysis of average estimates of genetic parameters for growth, reproduction and milk production traits in goats]
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Meta-analysis of average estimates of genetic parameters for growth, reproduction and milk production traits in goats
Phenotypic characterization is critical in breed improvement and conservation. To determine the performance and morphological features of Ankole cattle in three livestock production systems (LPS) of Uganda, 248 farms were studied. Height at withers (HW), heart girth (HG), body length (BL), ear le...
Kugonza, D.R.
,
Nabasirye, M.
,
Mpairwe, D.R.
,
Hanotte, Olivier H.
,
Okeyo Mwai, Ally
,
[Productivity and morphology of Ankole cattle in three livestock production systems in Uganda]
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Productivity and morphology of Ankole cattle in three livestock production systems in Uganda
Taye, M.
,
Wonseok Lee
,
Caetano-Anolles, K.
,
Dessie, Tadelle
,
Hanotte, Olivier H.
,
Okeyo Mwai, Ally
,
Kemp, Stephen J.
,
Seoae Cho
,
Sung Jong Oh
,
Hak-Kyo Lee
,
Heebal Kim
,
[Whole genome detection of signature of positive selection in African cattle reveals selection for thermotolerance]
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Whole genome detection of signature of positive selection in African cattle reveals selection for thermotolerance
A simulation study was conducted to optimize a cooperative village-based sheep breeding scheme for Menz sheep of Ethiopia. Genetic gains and profits were estimated under nine levels of farmers' participation and three scenarios of controlled breeding achieved in the breeding programme, as well as...
Gizaw, Solomon
,
Arendonk, Johan A.M. van
,
Valle-Zárate, A.
,
Haile, Aynalem
,
Rischkowsky, Barbara A.
,
Dessie, Tadelle
,
Okeyo Mwai, Ally
,
[Breeding programmes for smallholder sheep farming systems: II. Optimization of cooperative village breeding schemes]
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Breeding programmes for smallholder sheep farming systems: II. Optimization of cooperative village breeding schemes
This study aimed to estimate the level of relatedness within Ankole cattle herds using autosomal microsatellite markers and to assess the accuracy of relationship assignment based on farmers' memory. Eight cattle populations (four from each of two counties in Mbarara district in Uganda) were stud...
Kugonza, D.R.
,
Kiwuwa, G.H.
,
Mpairwe, D.R.
,
Han Jianlin
,
Nabasirye, M.
,
Okeyo Mwai, Ally
,
Hanotte, Olivier H.
,
[Accuracy of pastoralists' memory-based kinship assignment of Ankole cattle: A microsatellite DNA analysis]
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Accuracy of pastoralists' memory-based kinship assignment of Ankole cattle: A microsatellite DNA analysis
Survival analysis applying proportional hazards models was used to investigate genetic and non-genetic factors affecting ewe longevity and lamb survival of sheep in Ethiopia. Data were obtained from an on-station closed nucleus breeding program of Menz sheep and an on-farm Awassi×Menz sheep cross...
Getachew, T.
,
Gizaw, Solomon
,
Wurzinger, Maria
,
Haile, Aynalem
,
Rischkowsky, Barbara A.
,
Okeyo Mwai, Ally
,
Sölkner, J.
,
Meszaros, G.
,
[Survival analysis of genetic and non-genetic factors influencing ewe longevity and lamb survival of Ethiopian sheep breeds]
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Survival analysis of genetic and non-genetic factors influencing ewe longevity and lamb survival of Ethiopian sheep breeds
Uniquely selected breeds bred over thousands of years of domestication in awide range of environments have been declared extinct over the last century. Still morebreeds are at risk of becoming extinct and the rate continues to accelerate. Assessing thecurrent status and possible future dynamics o...
Pedigree recording and genetic selection in village flocks of smallholder farmers have been deemed infeasible by researchers and development workers. This is mainly due to the difficulty of sire identification under uncontrolled village breeding practices. A cooperative village sheep-breeding sch...
Gizaw, Solomon
,
Goshme, S.
,
Getachew, T.
,
Haile, Aynalem
,
Rischkowsky, Barbara A.
,
Arendonk, Johan A.M. van
,
Valle-Zárate, A.
,
Dessie, Tadelle
,
Okeyo Mwai, Ally
,
[Feasibility of pedigree recording and genetic selection in village sheep flocks of smallholder farmers]
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Feasibility of pedigree recording and genetic selection in village sheep flocks of smallholder farmers
The criteria for identification, selection and kinship assignment of Ankole cattle and their roles to pastoralists were studied on 248 farms in Kiboga, Mbarara, Mpigi and Sembabule districts of Uganda using a questionnaire, administered during one-to-one interviews. Farms were randomly sampled al...
Kugonza, D.R.
,
Nabasirye, M.
,
Hanotte, Olivier H.
,
Mpairwe, D.R.
,
Okeyo Mwai, Ally
,
[Pastoralists' indigenous selection criteria and other breeding practices of the long-horned Ankole cattle in Uganda]
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Pastoralists' indigenous selection criteria and other breeding practices of the long-horned Ankole cattle in Uganda