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Five lactation curve models were compared for their fitness to milk data of indigenous and crossbred cows using data from Bako Agricultural Research Center and Debre Zeit Research Station. The fit of the models was compared using the model Rz value. The overall mean RZ value was 81.5 t 0.12% and ...


Gebreyohannes, G.Tegegne, AzageDiedhiou, M.L.Hegde, B.P.[Modeling lactation curve and comparison of models fitness to different lactation data of indigenous and crossbred cows]Modeling lactation curve and comparison of models fitness to different lactation data of indigenous and crossbred cows

An experiment was conducted to determine the effects of feeding different calf starter rations, weaning age and their interactions on testicular growth and body weight of Borena Friesian (BF) crossbred bull calves at the age of 105 (closer to weaning) and 202 (nearly 6 months) days. Statistical a...


Gojam, Y.Tegegne, AzageGebrewold A.Bekele, T.[The effect of weaning age and feeding of different calf starter rations on testicular growth and body weight of Borena-Friesian crossbred bull calves]The effect of weaning age and feeding of different calf starter rations on testicular growth and body weight of Borena-Friesian crossbred bull calves

The dairy industry needs to be optimised through organising milk production, processing, preservation and marketing in a well-coordinated way. With the recent changes in government policies featured by liberalisation and encouragement of the private sector to participate in the development of alm...


Tegegne, Azage[Financing market-oriented dairy development. The case of Ada'a - Liben Woreda Dairy Association, Ethiopia]Financing market-oriented dairy development. The case of Ada'a - Liben Woreda Dairy Association, Ethiopia

The urban infrastructure of Addis Ababa has not sufficiently developed along with the vast horizontal expansion of the city in the last thirty years. With a population growth rate of well over 5 percent, the demand for cereal crops and animal products will continue to increase substantiality. Thi...


Tegegne, Azage[Urban livestock production and gender in Addis Ababa, Ethiopia]Urban livestock production and gender in Addis Ababa, Ethiopia

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

Gondal and extragonadal sperm reserves were determined in testicular and epididymal tissues obtained from ten Small East African Zebu (SEAZ), ten unimproved Borana and nine improved Boran bulls. Bulls were mature and were between 6 and 8 years of age. Body weight and scrotal circumference differe...


Tegegne, AzageMukasa-Mugerwa, E.Entwistle, K.W.[Genotype differences in gonadal and extragonadal sperm reserves in mature Zebu bulls in Ethiopia]Genotype differences in gonadal and extragonadal sperm reserves in mature Zebu bulls in Ethiopia

A study undertaken to characterise the oestrous cycle in Zebu cows following oestrous induction with PGF (Prostaglandin F2alpha) and examines the function of the subsequently formed CL (corpus luteum) by monitoring levels of peripheral plasma progesterone.


Mukasa-Mugerwa, E.Tegegne, AzageMattoni, M.Cecchini, G.[Effect of oestrous synchronization with prostaglandin F2alpha in Ethiopian highland Zebu (Bos indicus) cows]Effect of oestrous synchronization with prostaglandin F2alpha in Ethiopian highland Zebu (Bos indicus) cows

A total of 64 bull calves, composed of 27 Boran and 37 Boran X Friesian, were weaned at 6 months of age and divided into supplement or control groups within breed. All bulls were kept in one paddock and grazed on natural pasture. Supplement groups received 1.5 kg per head day of a diet containing...


Tegegne, AzageEntwistle, K.W.Mukasa-Mugerwa, E.[Gonadal and extragonadal sperm reserves and testicular histometric characteristics in Zebu and crossbred bulls: Effect of dry season nutritional supplementation]Gonadal and extragonadal sperm reserves and testicular histometric characteristics in Zebu and crossbred bulls: Effect of dry season nutritional supplementation

The effects of two cropping systems (1 and 2) on grain and fodder yields and nutritive quality of the fodder were studied in a randomized complete block desgin experiment over a period of two cropping years. Crops and crop combinations in system 1 were oat-vetch, wheat-trifolium, teff straw, and ...


Crosse, S.Umunna, N.N.Osuji, P.O.Khalili, H.Tegegne, AzageTedla, A.[Comparative yield and nutritive value of forages from two cereal - legume based cropping systems. 1. Crop yields and the nutritive value of forages]Comparative yield and nutritive value of forages from two cereal - legume based cropping systems. 1. Crop yields and the nutritive value of forages

Rumen degradability characteristics of dry matter (DM), organic matter (OM) and crude protein (CP) of normal maize (NM) stover (T1)-, NM silage (T2)- and quality protein maize (QPM) silage (T3)-based diets were studied using three rumen-fistulated Boran × Friesian non-lactating cows (371 ± 32.00 ...


Tamir, B.Gebrehawariat, E.Tegegne, AzageKortu, M.Y.[Rumen degradability characteristics of normal maize stover and silage, and quality protein maize silage-based diets offered to cows]Rumen degradability characteristics of normal maize stover and silage, and quality protein maize silage-based diets offered to cows

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