Background
Understanding the relationship between genetic admixture and performances is crucial for the success of crossbreeding programs. Use of small sets of ancestry informative markers (AIMs) is a cost effective option to estimate the levels of admixture in situations where pedigree recording...
Getachew, T.
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Huson, H.J.
,
Wurzinger, Maria
,
Burgstaller, J.
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Gizaw, Solomon
,
Haile, Aynalem
,
Rischkowsky, Barbara A.
,
Brem, G.
,
Boison, S.A.
,
Mészáros, G.
,
Okeyo Mwai, Ally
,
Sölkner, J.
,
[Identifying highly informative genetic markers for quantification of ancestry proportions in crossbred sheep populations: Implications for choosing optimum levels of admixture]
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Identifying highly informative genetic markers for quantification of ancestry proportions in crossbred sheep populations: Implications for choosing optimum levels of admixture
The objective of this review paper is to examine whether or not sheep crossbreeding is a feasible option to improve indigenous sheep breeds in developing countries using Ethiopian case as example. The paper reviewed and discussed the history of exotic breed introduction, research, and development...
Getachew, T.
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Haile, Aynalem
,
Wurzinger, Maria
,
Rischkowsky, Barbara A.
,
Gizaw, Solomon
,
Abebe, A.
,
Sölkner, J.
,
[Review of sheep crossbreeding based on exotic sires and among indigenous breeds in the tropics: An Ethiopian perspective]
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Review of sheep crossbreeding based on exotic sires and among indigenous breeds in the tropics: An Ethiopian perspective
Zewdu, E.
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Haile, Aynalem
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Tibbo, Markos
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Sharma, A.K.
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Sölkner, J.
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Wurzinger, Maria
,
[Morphological characterization of Bonga and Horro Indigenous Sheep Breeds under Smallholder conditions in Ethiopia]
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Morphological characterization of Bonga and Horro Indigenous Sheep Breeds under Smallholder conditions in Ethiopia
Getachew, T.
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Haile, Aynalem
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Tibbo, Markos
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Sharma, A.K.
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Kifle, A.
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Terefe, E.
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Wurzinger, Maria
,
Sölkner, J.
,
[Morphological characters and body weight of Menz and Afar sheep within their production system]
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Morphological characters and body weight of Menz and Afar sheep within their production system
An exploratory survey was undertaken to understand sheep production system, breeding practices and selection criteria for Ethiopian Menz and Afar sheep breeds in their home tract as a step towards developing sustainable sheep breeding strategies. The mean sheep flock size was 31.6 in Menz and 23....
Getachew, T.
,
Haile, Aynalem
,
Tibbo, Markos
,
Sharma, A.K.
,
Sölkner, J.
,
Wurzinger, Maria
,
[Herd management and breeding practices of sheep owners in a mixed crop-livestock and a pastoral system of Ethiopia]
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Herd management and breeding practices of sheep owners in a mixed crop-livestock and a pastoral system of Ethiopia
Identification of breeding objective traits pertinent to specific production environments with the involvement of target beneficiaries is crucial to the success of a breed improvement program. A choice experiment was conducted in four locations representing different production systems and agro-e...
Duguma, G.
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Mirkena, T.
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Haile, Aynalem
,
Okeyo Mwai, Ally
,
Tibbo, Markos
,
Rischkowsky, Barbara A.
,
Sölkner, J.
,
Wurzinger, Maria
,
[Identification of smallholder farmers and pastoralists’ preferences for sheep breeding traits: choice model approach]
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Identification of smallholder farmers and pastoralists’ preferences for sheep breeding traits: choice model approach
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
A bio-economic model was adapted to estimate economic values for important traits of two Ethiopian indigenous sheep breeds, the Menz and Horro breeds. To do so, a meat sheep herd for fattening lambs and rearing young replacement sheep was simulated. Traits included in the analysis were: daily gai...
Gebre, K.T.
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Fuerst-Waltl, B.
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Wurzinger, Maria
,
Philipsson, J.
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Duguma, G.
,
Mirkena, T.
,
Haile, Aynalem
,
Sölkner, J.
,
[Estimates of economic values for important traits of two indigenous Ethiopian sheep breeds]
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Estimates of economic values for important traits of two indigenous Ethiopian sheep breeds
Based on the results of participatory approaches to define traits in the breeding objectives, four scenarios of ram selection and ram use were compared via deterministic modelling of breeding plans for community-based sheep breeding programmes in four diverse agro-ecological regions of Ethiopia. ...
Mirkena, T.
,
Duguma, G.
,
Willam, A.
,
Wurzinger, Maria
,
Haile, Aynalem
,
Rischkowsky, Barbara A.
,
Okeyo Mwai, Ally
,
Tibbo, Markos
,
Sölkner, J.
,
[Community-based alternative breeding plans for indigenous sheep breeds in four agro-ecological zones of Ethiopia]
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Community-based alternative breeding plans for indigenous sheep breeds in four agro-ecological zones of Ethiopia
A comprehensive dynamic simulation model was developed to describe a community-based breeding program for the Menz sheep population of Ethiopia. Selection of male and female animals based on their own and maternal performance was simulated. The breeding goal traits were 6-mo weight, preweaning su...
Gebre, K.T.
,
Wurzinger, Maria
,
Gizaw, Solomon
,
Haile, Aynalem
,
Rischkowsky, Barbara A.
,
Getachew, T.
,
Sölkner, J.
,
[System dynamics modeling in designing breeding schemes: The case of Menz sheep in Ethiopian highlands]
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System dynamics modeling in designing breeding schemes: The case of Menz sheep in Ethiopian highlands