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An average of 840 East African Zebu cattle from nine herds in the Ghibe Valley, southwest Ethiopia were monitored from 1986 to 1990. Each month blood samples were collected from analysis of packed red cell volume and detection of trypanosomes. Animals were found to be parasitaemic and with a PCV ...


Rowlands, G.J.Mulatu, W.Authie, A.D'Ieteren, G.D.M.Leak, S.G.A.Nagda, S.M.Peregrine, A.S.[Epidemiology of bovine trypanosomiasis in the Ghibe Valley, southwest Ethiopia. 2. Factors associated with variations in trypanosome prevalence, incidence of new infections and prevalence of recurrent infections]Epidemiology of bovine trypanosomiasis in the Ghibe Valley, southwest Ethiopia. 2. Factors associated with variations in trypanosome prevalence, incidence of new infections and prevalence of recurrent infections

Approximately 320 East African Zebu cows over 36 months of age were monitored monthly from 1986 to 1992 in nine village herds in an area of high trypanosomiasis risk in southwest Ethiopia where there was resistance to all available trypanocidal drugs. Cows were individually treated with diminazen...


Rowlands, G.J.Woudyalew MulatuNagda, S.M.D'Ieteren, G.D.M.[Variations in packed red cell volume and trypanosome prevalence and relationships with reproductive traits in East African Zebu cows exposed to drug-resistant trypanosomes]Variations in packed red cell volume and trypanosome prevalence and relationships with reproductive traits in East African Zebu cows exposed to drug-resistant trypanosomes

Approximately 390 East African Zebu calves from birth to 3 years of age and their dams were monitored monthly from 1986 to 1992 in nine village herds in an area of high trypanosomiasis risk in southwest Ethiopia where there was resistance to all available trypanocidal drugs. Cattle were individua...


Rowlands, G.J.Mulatu, W.Authié, E.D'Ieteren, G.D.M.Leak, S.G.A.Nagda, S.M.[Effects of trypanosomiasis on growth and mortality of young East African Zebu cattle exposed to drug-resistant trypanosomes]Effects of trypanosomiasis on growth and mortality of young East African Zebu cattle exposed to drug-resistant trypanosomes

Nine hundred and thirty-six East African Zebu village calves in an area of high trypanosomiasis risk in south-western Ethiopia were monitored monthly with their dams from birth to 3 years of age. Mean packed red cell volume (PCV) and the frequency of detected parasitaemia were calculated for each...


Rowlands, G.J.Mulatu, W.Nagda, S.M.Dolan, R.B.D'Ieteren, G.D.M.[Genetic variation in packed red cell volume and frequency of parasitaemia in East African Zebu cattle exposed to drug-resistant trypanosomes]Genetic variation in packed red cell volume and frequency of parasitaemia in East African Zebu cattle exposed to drug-resistant trypanosomes

A method is described for calculating new infection incidence from monthly field data collected between April 1994 and February 1998 from an average of 770 Ethiopian Highland Zebu cattle maintained under traditional management in the Ghibe valley, southwest Ethiopia and exposed to a high challeng...


Rowlands, G.J.Leak, S.G.A.Peregrine, A.S.Nagda, S.M.Mulatu, W.D'Ieteren, G.D.M.[The incidence of new and the prevalence and persistence of recurrent trypanosome infections in cattle in southewest Ethiopia exposed to a high challenge with drug-resistant parasites]The incidence of new and the prevalence and persistence of recurrent trypanosome infections in cattle in southewest Ethiopia exposed to a high challenge with drug-resistant parasites

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

Reports the feeding preferences of Glossina species at sites of the African Trypanotolerant Livestock Network. Estimates tsetse challenge and relates the results with trypanosome prevalence in cattle. Examines the relationship between tsetse challenge using linear regression analysis. Also examin...


Leak, S.G.A.Colardelle, C.Coulibaly, L.D'Ieteren, G.D.M.Dumont, P.Feron, A.Hecker, P.Jeannin, P.Maloo, S.H.Minengu, M.Minja, S.Mulatu, W.Mulungo, M.Nankodaba, G.Ngamuna, S.Ordner, G.Sauveroche, B.Schuetterle, A.Tikubet, G.Touré, M.Trail, J.C.M.Tsotsi, E.Yangari, G.[Tsetse feeding habits and tsetse challenge at sites of the African Trypanotolerant Livestock Network]Tsetse feeding habits and tsetse challenge at sites of the African Trypanotolerant Livestock Network
Rowlands, G.J.Authié, E.D'Ieteren, G.D.M.Leak, S.G.A.Mulatu, W.Nagda, S.M.Peregrine, A.S.[An epidemiological study of recurrent trypanosome infection in East African Zebu cattle and its association with drug resistance]An epidemiological study of recurrent trypanosome infection in East African Zebu cattle and its association with drug resistance

Research has been undertaken since 1986 in the Ghibe valley, southwest Ethiopia, monitoring approximately 840 village East African Zebu cattle monthly to assess the effects of trypanosomiasis on productivity. The average monthly trypanosome prevalence between 1986 and 1989 was about 30 percent. M...


Mulatu, W.Rowlands, G.J.D'Ieteren, G.D.M.Nagda, S.M.[Effects of trypanosomiasis on productivity of East African Zebu cattle exposed to drug resistant trypanosomes]Effects of trypanosomiasis on productivity of East African Zebu cattle exposed to drug resistant trypanosomes

An average of 840 East African Zebu cattle have been monitored in the Ghibe valley, south west Ethiopia since 1986. Despite a high prevalence of drug resistance, regular Berenil treatment appears to have maintained these cattle at reasonable levels of productivity. However, when corrected for fre...


Rowlands, G.J.Mulatu, W.D'Ieteren, G.D.M.Nagda, S.M.[Evidence of differences in trypanosusceptibility in East African Zebu cattle]Evidence of differences in trypanosusceptibility in East African Zebu cattle

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