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
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
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
This paper revises the evolutionary history of the stem root of the genus Equus from Eocene period (54 million years before present, MYBP) to present. It also assesses molecular taxonomy and evolutionary relationships of this line since the first appearance of fossil records in terrestrial deposi...
Kefena, E.
,
Mekasha, Yoseph
,
Han, J.L.
,
Rosenbom, S.
,
Haile, Aynalem
,
Dessie, Tadelle
,
Beja-Pereira, A.
,
[Discordances between morphological systematics and molecular taxonomy in the stem line of equids: A review of the case of taxonomy of genus Equus]
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Discordances between morphological systematics and molecular taxonomy in the stem line of equids: A review of the case of taxonomy of genus Equus
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.
,
Fuerst-Waltl, B.
,
Wurzinger, Maria
,
Philipsson, J.
,
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
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
This study estimates the implicit prices of indigenous sheep traits based on revealed preferences. A hedonic pricing model is fitted to examine the determinants of observed sheep prices. Transaction data were generated from rural markets of Horro-Guduru Wollega Zone of Ethiopia. Both OLS and hete...
Gutu, Z.
,
Haile, Aynalem
,
Baker, Derek
,
Kassie, Girma T.
,
[Valuation of traits of indigenous sheep using hedonic pricing in Central Ethiopia]
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Valuation of traits of indigenous sheep using hedonic pricing in Central Ethiopia
Melesse, A.
,
Banerje, S.
,
Lakew, A.
,
Mersha, F.
,
Hailemariam, F.
,
Tsegaye, S.
,
Makebo, T.
,
Haile, Aynalem
,
Dessie, Tadelle
,
[Variation in linear body measurements and establishing prediction equations for live body weight of indigenous sheep populations of southern Ethiopia]
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Variation in linear body measurements and establishing prediction equations for live body weight of indigenous sheep populations of southern Ethiopia
Jembere, T.
,
Haile, Aynalem
,
Abegaz, S.
,
Duguma, G.
,
Dessie, Tadelle
,
[Estimation of genetic parameters for growth traits at various ages in Horro sheep at Bako Agricultural Research Center]
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Estimation of genetic parameters for growth traits at various ages in Horro sheep at Bako Agricultural Research Center
Breeding programmes described as community-based (CBBP) typically relate to low-input systems with farmers having a common interest to improve and share their genetic resources. CBBPs are more frequent with keepers of small ruminants, in particular smallholders of local breeds, than with cattle, ...
Mueller, J.P.
,
Rischkowsky, Barbara A.
,
Haile, Aynalem
,
Philipsson, J.
,
Okeyo Mwai, Ally
,
Besbes, B.
,
Valle-Zárate, A.
,
Tibbo, Markos
,
Mirkena, T.
,
Duguma, G.
,
Sölkner, J.
,
Wurzinger, Maria
,
[Community based livestock breeding programmes: Essentials and examples]
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Community based livestock breeding programmes: Essentials and examples