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Zerbini, E.Gemeda, T.Tegegne, AzageGebrewold, A.Franceschini, R.[The effects of work and nutritional supplementation on postpartum reproductive activities and progesterone secretion in F1 crossbred dairy cows in Ethiopia]The effects of work and nutritional supplementation on postpartum reproductive activities and progesterone secretion in F1 crossbred dairy cows in Ethiopia
Wirtu, G.Tegegne, AzageKassa, T.[Determination of accuracy of oestrus detection in zebu and crossbred cattle using plasma progesterone concentrations]Determination of accuracy of oestrus detection in zebu and crossbred cattle using plasma progesterone concentrations

Assesses the effect of cow-calf association and continuous suckling on the resumption of oestral activity; and monitors the temporal patterns of plasma progesterone during the post-partum period in grazing Ethiopian Small East African Zebu cows under uncontrolled mating.


Mukasa-Mugerwa, E.Tegegne, AzageFranceschini, R.[Influence of suckling and continuous cow-calf association on the resumption of post-partum ovarian function in Bos indicus cows monitored by plasma progesterone profiles]Influence of suckling and continuous cow-calf association on the resumption of post-partum ovarian function in Bos indicus cows monitored by plasma progesterone profiles

A study undertaken to determine the progesterone concentration in the peripheral plasma of pregnant Ethiopian Zebu cows using the ELISA technique.


Mukasa-Mugerwa, E.Tegegne, Azage[Peripheral plasma progesterone concentration in Zebu (Bos indicus) cows during pregnancy]Peripheral plasma progesterone concentration in Zebu (Bos indicus) cows during pregnancy

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 incidence of short luteal phases and ovulations without oestrus was investigated in 42 primiparous Borana cows. Based on calving body weight, cows were allocated to either a control group with grass hay only or to a supplement group with a concentrate ration. Within nutritional groups, cows w...


Tegegne, AzageGeleto, A.Kassa, T.[Short luteal phases and ovulations without oestrus in primiparous Borana (Bos indicus) cows in the central highlands of Ethiopia]Short luteal phases and ovulations without oestrus in primiparous Borana (Bos indicus) cows in the central highlands of Ethiopia

Postpartum ovarian activity was investigated in dairy cows in urban/peri urban dairy production systems in and around Addis Ababa using milk progesterone profiles. Nineteen crossbred (Friesian x Zebu) dairy cows which calved between March and June 1998 were used for the study. Milk samples were c...


Mekasha, YosephTegegne, AzageYami, A.Umunna, N.N.[Characterisation of postpartum ovarian activities using milk progesterone profiles in dairy cows in urban/peri-urban dairy production systems]Characterisation of postpartum ovarian activities using milk progesterone profiles in dairy cows in urban/peri-urban dairy production systems

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, AzageEntwistle, 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

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, AzageWitru, 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

This study examines superovulatory response, embryo recovery rates, embryo quality, return to natural estrus, and patterns of progesterone secretion and its relationship with superovulatory response and embryo quality in Boran cows after treatment with either a human menopausal gonadotropin (Perg...


Tegegne, AzageFranceschini, R.Sovani, S.[Superovulatory response, embryo recovery and progesterone secretion in Boran (Bos indicus) cows after treatment with either Pergovet or Pluset]Superovulatory response, embryo recovery and progesterone secretion in Boran (Bos indicus) cows after treatment with either Pergovet or Pluset

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