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]
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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 Mulatu
,
Nagda, 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]
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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]
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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]
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Genetic variation in packed red cell volume and frequency of parasitaemia in East African Zebu cattle exposed to drug-resistant trypanosomes
Ten farmers on Rusinga Island, Lake Victoria, Kenya were selected to study the epidemiology of tick-borne diseases (TBDs) and their possible effects on calf performance. During the years 1986-1988 a total of 162 calves were ear-tagged, weighed monthly and monitored closely for TBDs and endoparasi...
Latif, A.A.
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Rowlands, G.J.
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Punyua, D.K.
,
Hassan, S.M.
,
Capstick, P.B.
,
[An epidemiological study of tick-borne diseases and their effects on productivity of Zebu cattle under traditional management on Rusinga Island, western Kenya]
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An epidemiological study of tick-borne diseases and their effects on productivity of Zebu cattle under traditional management on Rusinga Island, western Kenya
Rowlands, G.J.
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Swallow, B.M.
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Kristjanson, Patricia M.
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Leak, S.G.A.
,
Mulatu, W.
,
[Sustainability and economic benefits of tsetse control using an insecticide pour-on applied to cattle in Southwest Ethiopia]
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Sustainability and economic benefits of tsetse control using an insecticide pour-on applied to cattle in Southwest Ethiopia
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]
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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
East Coast fever (ECF), caused by Theileria parva, is the most important tick-borne disease of cattle in much of eastern, central and southern Africa. In Kenya, immunization against ECF has been performed in many field trials using the infection and treatment method. The main targets for immuniza...
Deem, S.L.
,
Perry, Brian D.
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Katende, J.M.
,
McDermott, John J.
,
Mahan, S.M.
,
Maloo, S.H.
,
Morzaria, S.P.
,
Musoke, A.J.
,
Rowlands, G.J.
,
[Variations in prevalence rates of tick-borne diseases in Zebu cattle by agroecological zone: Implications for East Coast fever immunization]
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Variations in prevalence rates of tick-borne diseases in Zebu cattle by agroecological zone: Implications for East Coast fever immunization
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.
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Colardelle, C.
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Coulibaly, L.
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Dumont, P.
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Feron, A.
,
Hecker, P.
,
D'Ieteren, G.D.M.
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Jeannin, P.
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Minengu, M.
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Minja, S.
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Mulatu, W.
,
Nankodaba, G.
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Ordner, G.
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Rowlands, G.J.
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Sauveroche, B.
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Tikubet, G.
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Trail, J.C.M.
,
[Relationships between tsetse challenge and trypanosome prevalence in trypanotolerant and susceptible cattle]
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Relationships between tsetse challenge and trypanosome prevalence in trypanotolerant and susceptible cattle
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]
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An epidemiological study of recurrent trypanosome infection in East African Zebu cattle and its association with drug resistance