The study was carried out in three highland woredas (districts) of Chilga, Dembia and Gondar Zuria in north Gondar Zone, Amhara Region, Ethiopia. These woredas were purposively selected because of their long experience in transhumance cattle production system. The objectives of the study were to ...
Tegegne, Azage
,
Mengistie, T.
,
Desalew, T.
,
Teka, W.
,
Dejen, Eshete
,
[Transhumance cattle production system in North Gondar, Amhara region, Ethiopia: is it sustainable?]
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Transhumance cattle production system in North Gondar, Amhara region, Ethiopia: is it sustainable?
Tegegne, Azage
,
Mengistie, T.
,
Desalew, T.
,
Dejen, Eshete
,
[Does the future hold for transhumance cattle production system in North Western Ethiopia?]
,
Does the future hold for transhumance cattle production system in North Western Ethiopia?
Tegegne, Azage
,
Dejen, Eshete
,
Hoekstra, Dirk
,
Teka, W.
,
[Matching genotype with the environment using indigenous cattle breed: introduction of Borana cattle from southern Ethiopia into the lowlands]
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Matching genotype with the environment using indigenous cattle breed: introduction of Borana cattle from southern Ethiopia into the lowlands
Breed additive and non-additive effects, and genetic parameters of milk fat, protein, solids not fat (SNF) and total solids (TS) percents, were estimated in Ethiopian Boran cattle and their crosses with Friesian in central Ethiopia. Ethiopian Boran cattle were consistently superior (P<0.01) to th...
Haile, Aynalem
,
Joshi, B.K.
,
Ayalew, W.
,
Tegegne, Azage
,
Singh, A.
,
Yilma, Z.
,
[Genetic evaluation of Ethiopian Boran cattle and their crosses with Holstein Friesian for milk constituent traits in central Ethiopia]
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Genetic evaluation of Ethiopian Boran cattle and their crosses with Holstein Friesian for milk constituent traits in central Ethiopia
Knowledge of composition of fat, protein and water in the body is indicative for the
determination of effects of changes in nutrition in terms of body reserves. Deuterium
oxide dilution technique has been proposed as easy, reliable and non-destructive method
of determining body composition using ...
Jenet, A.
,
Saurer, M.
,
Fernández Rivera, S.
,
Tegegne, Azage
,
Wettstein, H.R.
,
Kreuzer, M.
,
[Body composition of cows kept under tropical conditions: Carry-over effects of feed fluctuation]
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Body composition of cows kept under tropical conditions: Carry-over effects of feed fluctuation
This study tested the hypothesis that purebred Boran (Bos indicus) cows and crossbreds of Boran and Holstein respond differently to long-term changes of feeding level in nutrient partitioning to milk and body fat stores. A total of 27 cows of these two genotypes were subjected either to a low or ...
Jenet, A.
,
Fernández Rivera, S.
,
Tegegne, Azage
,
Wettstein, H.R.
,
Senn, M.
,
Saurer, M.
,
Langhans, W.
,
Kreuzer, M.
,
[Evidence for different nutrient partitioning in Boran (Bos indicus) and Boran x Holstein cows when re-allocated from low to high or from high to low feeding level]
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Evidence for different nutrient partitioning in Boran (Bos indicus) and Boran x Holstein cows when re-allocated from low to high or from high to low feeding level
Five tropically adapted buck breeds extensively managed in Ethiopia were studied to determine possible effects of breed and age on body size and testicular traits. In all, 177 bucks were selected following stratified random sampling, and evaluated in three age groups: <14 months (young), 14-19.5 ...
Mekasha, Yoseph
,
Tegegne, Azage
,
Abera, A.
,
Rodríguez Martinez, H.
,
[Body size and testicular traits of tropically-adapted bucks raised under extensive husbandry in Ethiopia]
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Body size and testicular traits of tropically-adapted bucks raised under extensive husbandry in Ethiopia
Initial and peak milk yield, days to peak milk yield and persistency index (PI) of
indigenous and crossbred cows were determined to characterized their lactation
curve. The study was based on existing data in the Bako Agricultural Research
Center and Debre Zeit Research Station. The overall mean ...
Postpartum anoestrus interval (PPAI) and estrus activity measured as probability of getting acow in estrus within 42 (PPAI42), 63 (PPAI63) and 84 (PPAI84) days postpartum in indigenousand crossbred cows were studied using data from Bako Agricultural Research Center. PPAI wasanalyzed using the Gen...
Gebreyohanes, G.
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Tegegne, Azage
,
Diedhiou, M.L.
,
Hegde, B.P.
,
[Postpartum anoestrus interval and estrus activity in relation to postpartum body weight dynamics in indigenous and crossbred cows at Bako, Ethiopia]
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Postpartum anoestrus interval and estrus activity in relation to postpartum body weight dynamics in indigenous and crossbred cows at Bako, Ethiopia
Study was conducted to determine turnover of water, nitrogen and energy in lactating Holstein x Boran cows. Nine cows (Bos indicus × B. taurus) between their 42nd and 420th the days of lactation were selected for this study. The crossbred cows had ad libitum access to water and a dried maize stov...
Jenet, A.
,
Yimegnuhal, A.
,
Tegegne, Azage
,
Fernández Rivera, S.
,
Kreuzer, M.
,
[Water intake and nutrient balances of Holstein X Boran cows fed a low-quality tropical diet]
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Water intake and nutrient balances of Holstein X Boran cows fed a low-quality tropical diet