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This study was undertaken to investigate the relationship between date of birth and growth performance of calves born to seasonally-bred range cows. Late born calves exhibited an apparent superiority in preweaning growth over that of their early-born counterparts. This was attributed to a positiv...


Rege, J.E.O.Moyo, Siboniso[Effect of birth date on growth performance of calves of seasonally-bred range cattle]Effect of birth date on growth performance of calves of seasonally-bred range cattle

A study was conducted at the Asella Station in the Arsi Region of Ethiopia to investigate the dairy performance of indigenous purebred Arsi and Friesian X Arsi crosses under different pre-partum and post-partum supplementary feeding regimes. A total of 343 first-lactation animals were involved in...


Kurtu, M.Y.Tawah, C.L.Rege, J.E.O.Alemayehu, N.Shibre, M.[Lactation performance of purebred Arsi cows and Friesian X Arsi crosses under pre-partum and post-partum supplementary feeding regimes]Lactation performance of purebred Arsi cows and Friesian X Arsi crosses under pre-partum and post-partum supplementary feeding regimes

Estimates genetic parameters and trends in reproductive and productive traits of Sahiwal cattle - milk yield, birth weight of calves, service period, number of services per conception and calving interval, from records covering the period 1964 through 1988 obtained from the Kenya Sahiwal Stud, Na...


Rege, J.E.O.Wakhungu, Judi W.Lamole, M.A.[Genetic parameters and trends in production and reproduction traits at the Kenya Sahiwal Stud]Genetic parameters and trends in production and reproduction traits at the Kenya Sahiwal Stud

A total of 26,233 calving records from three commercial ranches: Mogwooni, Galana and O'ljorai; located in high altitude, humid and low altitude, coastal, and medium altitude rangelands of Kenya, were available for the study over periods between 10 and 30 years. The traits studied were: age at fi...


Okeyo Mwai, AllyMosi, R.O.Rege, J.E.O.[Genetic and phenotypic parameters and trends of reproduction traits in Kenya Boran cows]Genetic and phenotypic parameters and trends of reproduction traits in Kenya Boran cows

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