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]
,
Survival analysis of genetic and non-genetic factors influencing ewe longevity and lamb survival of 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]
,
Feasibility of pedigree recording and genetic selection in village sheep flocks of smallholder farmers
Village- and central nucleus-based schemes were simulated and evaluated for their relative bio-economic efficiencies, using Ethiopia's Menz sheep as example. The schemes were: village-based 2-tier (Scheme-1) and 1-tier (Scheme-2) cooperative village breeding schemes, dispersed village-based nucle...
Gizaw, Solomon
,
Rischkowsky, Barbara A.
,
Valle-Zárate, A.
,
Haile, Aynalem
,
Arendonk, Johan A.M. van
,
Okeyo Mwai, Ally
,
Dessie, Tadelle
,
[Breeding programs for smallholder sheep farming systems: I. Evaluation of alternative designs of breeding schemes]
,
Breeding programs for smallholder sheep farming systems: I. Evaluation of alternative designs of breeding schemes
We evaluated the efficiency of selection for body weight in a cooperative village breeding program for Menz sheep of Ethiopia under smallholder farming system. The design of the program involved organizing villagers in a cooperative breeding group to implement selective breeding of their sheep. T...
Gizaw, Solomon
,
Getachew, T.
,
Goshme, S.
,
Valle-Zárate, A.
,
Arendonk, Johan A.M. van
,
Kemp, Stephen J.
,
Okeyo Mwai, Ally
,
Dessie, Tadelle
,
[Efficiency of selection for body weight in a cooperative village breeding program of Menz sheep under smallholder farming system]
,
Efficiency of selection for body weight in a cooperative village breeding program of Menz sheep under smallholder farming system
Abegaz, S.
,
Sölkner, J.
,
Gizaw, Solomon
,
Dessie, Tadelle
,
Haile, Aynalem
,
Wurzinger, Maria
,
[Description of production systems and morphological characteristics of Abergelle and Western lowland goat breeds in Ethiopia: Implication for community-based breeding programmes]
,
Description of production systems and morphological characteristics of Abergelle and Western lowland goat breeds in Ethiopia: Implication for community-based breeding programmes
Livestock are a major cornerstone for livelihoods of smallholders in the highlands of Ethiopia. However, infectious diseases are a key constraint in livestock production affecting productivity and food security. This study aimed to understand livestock producers’ perception on importance and epid...
Gizaw, Solomon
,
Desta, Hiwot
,
Alemu, Biruk
,
Tegegne, Azage
,
Wieland, Barbara
,
[Importance of livestock diseases identified using participatory epidemiology in the highlands of Ethiopia]
,
Importance of livestock diseases identified using participatory epidemiology in the highlands of Ethiopia
The objective of this study was to estimate genetic parameters of reproduction traits of pure Fogera cattle at Metekel Ranch. Metekel cattle Breeding and Improvement Ranch has so far been engaged in maintenance of Fogera cattle population outside their adapted environment (ex-situ conservation). ...
Bekele, A.
,
Wuletaw, Z.
,
Haile, Aynalem
,
Gizaw, Solomon
,
Mekuriaw, Getinet
,
[Genetic parameters for reproduction traits and correlation with pre weaning growth traits of Fogera cattle at Metekel ranch, north west Ethiopia]
,
Genetic parameters for reproduction traits and correlation with pre weaning growth traits of Fogera cattle at Metekel ranch, north west Ethiopia
A survey was conducted through single field visits and interviews with 360 respondents in selected districts of Bench Maji Zone, Southwestern Ethiopia to asses the Sheko cattle farming system, breeding practices, and identify cattle breeding goals and constraints for designing Sheko cattle conser...
Bayou, E.
,
Haile, Aynalem
,
Gizaw, Solomon
,
Mekasha, Yoseph
,
[Characterizing husbandry practices and breeding objectives of Sheko cattle owners for designing conservation and improvement strategies in Ethiopia]
,
Characterizing husbandry practices and breeding objectives of Sheko cattle owners for designing conservation and improvement strategies in Ethiopia
The study was conducted in Kafta humera district of Ethiopia, (i) to investigate the milk yield of Begait goat under different management and (ii) to evaluate the effects of different non-genetic factors on lactation performance. Data were collected from 428 lactating does under two managements (...
Hagos, A.
,
Gizaw, Solomon
,
Urge, M.
,
[Milk production performance of Begait goat under semi intensive and extensive management in Western Tigray, North Ethiopia]
,
Milk production performance of Begait goat under semi intensive and extensive management in Western Tigray, North 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]
,
System dynamics modeling in designing breeding schemes: The case of Menz sheep in Ethiopian highlands