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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

Gonadal and extragonadal sperm reserves were determined in testicular and epididymal tissues obtained from 14 small highland Abyssinian Zebu (SHAZ) and from 15 Borana bulls slaughtered at the Debre Zeit abattoir. Bulls were mature and over six years of age. Body weight and scrotal circumference w...


Tegegne, AzageTaddele, Y.Kassa, T.[Gonadal and extragonadal sperm reserves in two breeds of mature Zebu (Bos indicus) bulls in Ethiopia]Gonadal and extragonadal sperm reserves in two breeds of mature Zebu (Bos indicus) bulls in Ethiopia

Results of a study conducted to determine the conception rates of Boran cattle following artificial insemination of different times from the onset of induced oestrus compared with artificial insemination following natural oestrus.


Mukasa-Mugerwa, E.Tegegne, AzageWarnick, A.C.[Time of artificial insemination and pregnancy rates in Boran (Bos indicus) cattle]Time of artificial insemination and pregnancy rates in Boran (Bos indicus) cattle

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
Shapiro, S.Z.Murray, M.[African trypanosome antigens recognized during the course of infection in N'Dama and Zebu cattle]African trypanosome antigens recognized during the course of infection in N'Dama and Zebu cattle

Reports results of a study on the relationships between tsetse challenge and trypanosome prevalence in trypanotolerant and susceptible breeds of cattle. Presents data on tsetse challenge and trypanosome prevalence in N'Dama and Zebu cattle in Zaire, Gabon, Ethiopia and Cote d'Ivoire.


Leak, S.G.A.Colardelle, C.Coulibaly, L.Dumont, P.Feron, A.Hecker, P.D'Ieteren, G.D.M.Jeannin, P.Minengu, M.Minja, S.Mulatu, W.Nankodaba, G.Ordner, G.Rowlands, G.J.Sauveroche, B.Tikubet, G.Trail, J.C.M.[Relationships between tsetse challenge and trypanosome prevalence in trypanotolerant and susceptible cattle]Relationships between tsetse challenge and trypanosome prevalence in trypanotolerant and susceptible cattle
Dargie, J.D.Murray, P.K.Murray, M.Grimshaw, W.R.T.McIntyre, W.I.M.[Bovine trypanosomiasis. The red cell kinetics of N'Dama and Zebu cattle infected with Trypanosoma congolense]Bovine trypanosomiasis. The red cell kinetics of N'Dama and Zebu cattle infected with Trypanosoma congolense

Gondal and extragonadal sperm reserves were determined in testicular and epididymal tissues obtained from ten Small East African Zebu (SEAZ), ten unimproved Borana and nine improved Boran bulls. Bulls were mature and were between 6 and 8 years of age. Body weight and scrotal circumference differe...


Tegegne, AzageMukasa-Mugerwa, E.Entwistle, K.W.[Genotype differences in gonadal and extragonadal sperm reserves in mature Zebu bulls in Ethiopia]Genotype differences in gonadal and extragonadal sperm reserves in mature Zebu bulls in Ethiopia

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, AzageMattoni, 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

Two experiments were carried out to evaluate the effect of incremental levels of Gliricidia sepium (gliricidia) and Leucaena leucocephala (leucaena) on forage intake, diet apparent digestibility, microbial nitrogen supply and live-weight changes in cattle. In each experiment, 20 intact and five f...


Abdulrazak, S.A.Muinga, R.W.Thorpe, W.R.Orskov, E.R.[The effects of supplementation with Gliricidia sepium or Leucaena leucocephala forage on intake, digestion and live-weight gains of Bos taurus X Bos indicus steers offered Napier grass]The effects of supplementation with Gliricidia sepium or Leucaena leucocephala forage on intake, digestion and live-weight gains of Bos taurus X Bos indicus steers offered Napier grass

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