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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...
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...
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...
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...
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 ...
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 ...
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