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Tegegne, AzageMukasa-Mugerwa, E.Franceschini, R.Sovani, S.[Nutritional influence on Corpora lutea function and fertility in Boran (Bos indicus) heifers bred at first oestrus or after three oestrous cycles]Nutritional influence on Corpora lutea function and fertility in Boran (Bos indicus) heifers bred at first oestrus or after three oestrous cycles

Tegegne, AzageDejen, EsheteHoekstra, DirkTeka, W.[Matching genotype with the environment using indigenous cattle breed: introduction of Borana cattle from southern Ethiopia into the lowlands]Matching genotype with the environment using indigenous cattle breed: introduction of Borana cattle from southern Ethiopia into the lowlands

The data on 60 Ethiopian Boran and 428 Boran-Friesian crosses spread over 15 years (1990-2004) were used lo predict first lactation milk yield (FLYD) based on earlier expressed traits using multiple regression analysis and principal components analysis. In the prediction of FLYD in Ethiopian Bora...


Haile, AynalemJoshi, B.K.Ayalew, W.Tegegne, AzageSingh, A.Chakravarty, A.K.[Prediction of first lactation milk geld of Boran cattle and their crosses with Holstein-Friesian in Central Ethiopia using multiple regression and principal components analysis]Prediction of first lactation milk geld of Boran cattle and their crosses with Holstein-Friesian in Central Ethiopia using multiple regression and principal components analysis

Although the importance of bull reproduction in enhancing genetic progress and influencing cow herd fertility has long been recognized in many parts of the world, there has been very little attention paid to bulls in Ethiopia. Proper management of young bulls aims to improve growth rate so that t...


Tegegne, AzageKassa, T.Mukasa-Mugerwa, E.[Aspects of bull reproduction with emphasis on cattle in Ethiopia. I. Sexual Development and onset of puberty]Aspects of bull reproduction with emphasis on cattle in Ethiopia. I. Sexual Development and onset of puberty

In this study available genetic resources and breeding systems used by dairy farmers in urban and peri-urban dairy production systems in, Addis Ababa milk shed were assessed. Results of the study indicated that: about 57%, 31 % and 10% of secondary town, peri urban and intra-urban farmers like to...


Tadesse, M.Tegegne, Azage[Assessment of the factors affecting farmers' choice of the production system in urban and peri urban dairy production system in Addis Ababa milk shed]Assessment of the factors affecting farmers' choice of the production system in urban and peri urban dairy production system in Addis Ababa milk shed

The efficiency of cattle breeding and production depends to a large extent on the reproductive performance of the herd, with the bull playing a major role. Large differences in fertilizing ability between bulls exists, and such differences are due to the characteristics of individual bulls rather...


Tegegne, AzageKassa, T.Mukasa-Mugerwa, E.[Aspects of bull reproduction with emphasis on cattle in Ethiopia. II. Sperm production capacity and semen characteristics]Aspects of bull reproduction with emphasis on cattle in Ethiopia. II. Sperm production capacity and semen characteristics

The reproductive performance of Boran, Horro and Barka cattle and their F1 crosses with Friesian, Jersey and Simmental breeds at 4 research stations was investigated. The environmental conditions covered in the study represented wet and dry conditions. Detailed information provided on the number ...


Tegegne, AzageGalal, E.S.E.Kebede, B.[A study on the reproduction of local zebu and F1 crossbred (European x zebu) cows. I. Number of services per conception, gestation length and days open till conception]A study on the reproduction of local zebu and F1 crossbred (European x zebu) cows. I. Number of services per conception, gestation length and days open till conception

The luteolytic effect of prostaglandin F2á (PGF2á) during the confirmed luteal phase of the oestrous cycle was evaluated in ten Boran and ten Boran x Friesian cross-bred heifers. Following injection with 25mg Lutalyse, animals were bled every 6 h for 96 h and plasma progesterone (P4) determined ...


Mutiga, E.R.Mukasa-Mugerwa, E.Tegegne, Azage[Luteolytic effect of prostaglandin F2X in Boran and Boran X Friesian cross-bred heifers]Luteolytic effect of prostaglandin F2X in Boran and Boran X Friesian cross-bred heifers

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