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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.Tegegne, AzageDiedhiou, 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]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, AzageFernández Rivera, S.Kreuzer, M.[Water intake and nutrient balances of Holstein X Boran cows fed a low-quality tropical diet]Water intake and nutrient balances of Holstein X Boran cows fed a low-quality tropical diet

Presents the results of a study designed to characterize further the temporal patterns of oestrus onset and plasma progesterone profiles during the postpartum ovarian activitity in two groups of Ethiopian Bos indicus (Zebu) cows whose calves were either weaned at 4.5 months or at 7.5 months; repo...


Mukasa-Mugerwa, E.Tegegne, AzageKetema, H.[Patterns of postpartum oestrus onset and associated plasma progesterone profiles in Bos indicus cows in Ethiopia]Patterns of postpartum oestrus onset and associated plasma progesterone profiles in Bos indicus cows in Ethiopia

The study was conducted to estimate model parameters of Incomplete Gamma (IG) (b=1) and Inverse Polynomial ¢P) functions of a lactation curve and the models lactation yield prediction potential based on milk data from Bako Agricultural Research centre and Debre Zeit Research Station. The models w...


Gebreyohannes, G.Tegegne, AzageDiedhiou, M.L.Hegde, B.P.[Estimated model parameters of incomplete gamma and inverse polynomial functions and comparison of the models lactation yield prediction potential in Zebu and crossbred cattle]Estimated model parameters of incomplete gamma and inverse polynomial functions and comparison of the models lactation yield prediction potential in Zebu and crossbred cattle

The Government of Ethiopia concentrates on agricultural and rural development for its economic development. Dairy development is one of the components of agricultural development. To improve dairy production in a certain locality, dairy producers should be able to access and use appropriate knowl...


Assefa, H.Gebre-Egziabher, T.Sehai, ErmiasTegegne, Azage[Agricultural knowledge management in dairy production improvement: The case of Bure woreda, West Gojjam Zone, Amhara Region]Agricultural knowledge management in dairy production improvement: The case of Bure woreda, West Gojjam Zone, Amhara Region

The long term effect of supplementation of Leucaena pallida and Sesbania sesban on growth and reproduction performance was determined on 30 male Ethiopian highland sheep and 25 East African goats. Unchopped teff straw (Eragrostis tef) was given ad libitum and supplemented withe ither wheat bran (...


Kaitho, R.J.Tegegne, AzageUmunna, N.N.Nsahlai, I.V.Tamminga, S.Bruchem, J. vanArts, J.M.[Effect of leucaena and sesbania supplementation on body growth and scrotal circumference of Ethiopian highland sheep and goats fed teff straw basal diet]Effect of leucaena and sesbania supplementation on body growth and scrotal circumference of Ethiopian highland sheep and goats fed teff straw basal diet

An exploratory survey was undertaken to describe and quantify the magnitude of lameness in 964 dairy cattle between October and December 1999 under urban (Addis Ababa), peri-urban (Sebeta and Kaliti), and urban farms in a secondary town (Debre Zeit). Based on herd sizes, these farms were classifi...


Lobago, F.Lemma, A.Tegegne, AzageTibbo, Markos[Lameness as a disease of intensification in dairy cattle under urban and peri-urban production system in the Addis Ababa milk shed]Lameness as a disease of intensification in dairy cattle under urban and peri-urban production system in the Addis Ababa milk shed

A cross-sectional study of bovine brucellosis was carried out from May to October 1997 on 42 dairy farms located in Addis Ababa, Sebeta, Kaliti and Debre Zeit, Ethiopia. An overall herd infection rate of 33.3 percent was established. With respect to the production systems, 100 percent, 30 percent...


Asfaw, Y.Molla, B.Zessin, K.H.Tegegne, Azage[A cross-sectional study of bovine brucellosis and test performance in intra-and peri-urban production systems in and around Addis Ababa, Ethiopia]A cross-sectional study of bovine brucellosis and test performance in intra-and peri-urban production systems in and around Addis Ababa, Ethiopia

Compares estrus response, estrus response interval and subsequent pregnancy rate in Bos indicus and Bos indicus X Bos taurus cross cows and heifers following estrus synchronization with prostaglandin F2 (PGF2X (a), a progesterone releasing intravaginal device (PR10) (b), and synchro-mate B (SMB) ...


Tegegne, AzageWarnick, A.C.Mukasa-Mugerwa, E.Ketema, H.[Fertility of Bos indicus and Bos indicus X Bos taurus crossbred cattle after estrus synchronization]Fertility of Bos indicus and Bos indicus X Bos taurus crossbred cattle after estrus synchronization

Small East African Zebu cows which calved during the dry season were used to determine the effects of postpartum nutritional supplementation and suckling intensity on body weight, body condition score, reproductive performance and on calf mortality and preweaning growth performance. Cows were all...


Tegegne, AzageEntwistle, K.W.Mukasa-Mugerwa, E.[Effects of supplementary feeding and suckling intensity on postpartum reproductive performance of small East African Zebu cows]Effects of supplementary feeding and suckling intensity on postpartum reproductive performance of small East African Zebu cows

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