Thirty-six crossbred cows were used in a 2 X 2 factorial arrangement in a randomized block design to evaluate forages from two cropping systems (1 and 2) and feeding levels (ad libitum, (Level1)) or 80 percent of ad libitum (Level 2) on milk yield, live weight, and reproductive performance. Crops...
Crosse, A.
,
Umunna, N.N.
,
Osuji, P.O.
,
Tegegne, Azage
,
Khalili, H.
,
Tedla, A.
,
[Comparative yield and nutritive value of forages from two cereal-legume based cropping systems. 2. Milk production and reproductive performance of crossbred dairy cows]
,
Comparative yield and nutritive value of forages from two cereal-legume based cropping systems. 2. Milk production and reproductive performance of crossbred dairy cows
Data on reproductive performance of Zebu and Friesian X Zebu crossbred cows reared under small-scale dairy farms were analysed and the effects of genotype, parity, body condition score (BCS), season, and year of calving were examined for a total of 246 calvings. Uterine involution was completed e...
Kassa, T.
,
Tegegne, Azage
,
[Factors affecting reproductive performance of Zebu and crossbred cows under small-scale dairy farms]
,
Factors affecting reproductive performance of Zebu and crossbred cows under small-scale dairy farms
Plasma progesterone profiles were used to monitor post-partum reproductive activity in 12 Small East African Zebu (Bos indicus) cows allocated to either supplementary or no supplementary feeding (control) with continious or restricted (twice daily) suckling regimes. Intact bulls were used for bre...
Tegegne, Azage
,
Entwistle, K.W.
,
Mukasa-Mugerwa, E.
,
[Plasma progesterone and blood metabolite profiles in post-partum small East African Zebu cows]
,
Plasma progesterone and blood metabolite profiles in post-partum small East African Zebu cows
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, Azage
,
Diedhiou, 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
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, Azage
,
Mattoni, 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
Milk yield, milk composition and body weight change of crossbred dairy cows (Holstein Friesian X Zebu) were studied in the urban and peri-urban dairy production systems in the Addis Ababa milk shed between December 1997 and November 1998. Ninety-seven cows, with parities above two and at the begi...
Mekasha, Yoseph
,
Tegegne, Azage
,
Yami, A.
,
Umunna, N.N.
,
[Milk production, milk composition and body weight change of crossbred dairy cows in urban and peri-urban dairy production systems in Ethiopia]
,
Milk production, milk composition and body weight change of crossbred dairy cows in urban and peri-urban dairy production systems in Ethiopia
This paper presents the results of a comparative study conducted to characterize the oestrous phenonenon in Zebu and crossbred cattle and to determine oestrus detection using both androgenized cows and entire bulls. The study was conducted at ILRI Debre Zeit Research Station during the dry season...
Tegegne, Azage
,
Witru, G.
,
Mukasa-Mugerwa, E.
,
Kassa, T.
,
[Oestrus phenomenon and oestrus detection efficiency using androgenized cows and entire bulls in Boran and Boran x Friesian crossbred cows]
,
Oestrus phenomenon and oestrus detection efficiency using androgenized cows and entire bulls in Boran and Boran x Friesian crossbred cows
An on-farm monitoring study was carried out in the urban and peri-urban dairy production systems in the Addis Ababa milk shed to assess variations in on farm nutrient intake of dairy cows (Holstein Friesian X Zebu) and feed balance. Ninety seven cows, with parities above two and at the beginning ...
Mekasha, Yoseph
,
Tegegne, Azage
,
Yami, A.
,
Umunna, N.N.
,
[Variations in nutrient intake of dairy cows and feed balance in urban and peri-urban dairy production systems in Ethiopia]
,
Variations in nutrient intake of dairy cows and feed balance in urban and peri-urban dairy production systems in Ethiopia
Postpartum body weight dynamics of zebu and crossbred cows in relation to postpartum reproduction was studied using data from the Bako Agricultural Research Centre. Body weight at calving, first postpartum oestrus, first service and conception were analysed using the General Linear Model which in...
Gebreyohannes, G.
,
Tegegne, Azage
,
Diedhiou, M.L.
,
Hegde, B.P.
,
[Body weight dynamics of Zebu and crossbred cows in relation to postpartum reproduction under sub humid climate of Bako]
,
Body weight dynamics of Zebu and crossbred cows in relation to postpartum reproduction under sub humid climate of Bako
Based on the promising results obtained from on-station, the cow traction study was further taken to on-farm for verification under the Ethiopian smallholder farmers management conditions. The study was undertaken in Holetta area between 1992 and 1996 by involving 14 farmers. Mean dairy milk yiel...
Alemayehu, M.
,
Gebre-Wold, A.
,
Tegegne, Azage
,
Zerbini, E.
,
Larsen, C.
,
[Dairy-draft on-farm performance of crossbred cows in Holetta area]
,
Dairy-draft on-farm performance of crossbred cows in Holetta area