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Matching information on animal health and performance aspects was collected from 255 N'dama post-weaners from September 1986 to December 1991. Records covered for each animal a two years period from weaning at 10 months of age until 34 months of age. Curative trypanocidal drug treatment was given...


Wissocq, N.M.D'Ieteren, G.D.M.Trail, J.C.M.Kakiese, O.[Quantification of the relative importance of trypanotolerance measurements on productivity of N'Dama cattle (Addendum)]Quantification of the relative importance of trypanotolerance measurements on productivity of N'Dama cattle (Addendum)

Evaluates possible contributions of the antigen-detection enzyme immunoassays (ELISA) for the diagnosis of Trypanosoma vivase, T.congolense, and T.Bucei infections in N'Dama cattle in Gabon, Central Africa. The assays are based on monoclonal antibodies which recoginse trypanosome antigens specifi...


Trail, J.C.M.D'Ieteren, G.D.M.Maille, J.C.Yangari, G.Nantulya, V.M.[Use of antigen-detection immunoassays in assessment of trypanotolerance in N'Dama cattle]Use of antigen-detection immunoassays in assessment of trypanotolerance in N'Dama cattle

Trypanosomiasis, a disease transmitted by the tsetse fly, is a major constraint to livestock production and mixed farming in Africa. Due to the prevalence of trypanosomiasis and skin diseases in much of Zaire, it was concluded that cattle production was only feasible through the introduction of t...


Itty, P.Rowlands, G.J.Minengu, M.Ngamuna, S.Winkel, F. vanD'Ieteren, G.D.M.[The economics of recently introduced village cattle production in a tsetse affected area. (I): Trypanotolerant N'Dama cattle in Zaire]The economics of recently introduced village cattle production in a tsetse affected area. (I): Trypanotolerant N'Dama cattle in Zaire

Data on tsetse fly, and on village Ndama cattle collected over a 4-year period in southern Senegal were analysed. A total of 431 Ndama cattle in four herds of three villages in the Upper Casamance area of southern Senegal were monitored monthly. Glossina morsitans submorsitans and Glossina palpal...


Fall, AbdouDiack, A.Diaite, A.Seye, M.D'Ieteren, G.D.M.[Tsetse challenge, trypanosome and helminth infection in relation to productivity of village Ndama cattle in Senegal]Tsetse challenge, trypanosome and helminth infection in relation to productivity of village Ndama cattle in Senegal

Discusses trypanotolerance in cattle and prospects for the control of trypanosomiasis by selective breeding in Africa. Looks into methods available for control including tsetse control, drugs & vaccination and discusses constraints that limit the control. Also discusses prospects for future contr...


Murray, M.Trail, J.C.M.D'Ieteren, G.D.M.[Trypanotolerance in cattle and prospects for the control of trypanosomiasis by selective breeding]Trypanotolerance in cattle and prospects for the control of trypanosomiasis by selective breeding

A study undertaken to evaluate the degree of genetic determination in the control of development of anaemia in N'Dama post-weaner cattle exposed to a medium natural trypanosome challenge during a short term test for trypanotolerance. The heritabilities of average pcv, lowest pcv reached, and grow...


Trail, J.C.M.D'Ieteren, G.D.M.Maille, J.C.Yangari, G.[Genetic aspects of control of anaemia development in trypanotolerant N'Dama cattle]Genetic aspects of control of anaemia development in trypanotolerant N'Dama cattle

Evaluates components of a short term test for trypanotolerance criteria in N'Dama post-weaners exposed to a medium natural trypanosome challenge in Gabon; compares the effectiveness of different measures of control of development of anaemia; and measures the post-test recovery of packed red cell ...


Trail, J.C.M.D'Ieteren, G.D.M.Colardelle, C.Maille, J.C.Ordner, G.Sauveroche, B.Yangari, G.[Evaluation of a field test for trypanotolerance in young N'Dama cattle]Evaluation of a field test for trypanotolerance in young N'Dama cattle

Presents results of a study undertaken firstly to measure the relative effects in N'Dama cattle of length of time detected parasitaemic; intensity of parasitaemia; and control of development of anaemia; on reproductive performance (calving interval), maternal ability (calf weaning weight) and cow...


Trail, J.C.M.D'Ieteren, G.D.M.Feron, A.Kakiese, O.Mulungo, M.Pelo, M.[Effect of trypanosome infection, control of parasitaemia and control of anaemia development on productivity of N'Dama cattle]Effect of trypanosome infection, control of parasitaemia and control of anaemia development on productivity of N'Dama cattle

Trypanosome infection was detected by the dark ground/phase contrast buffy coat microscopic technique in N'Dama cattle in a high natural tsetse challenge situation in Zaire. The data were used to compare the pattern of infection in very young animals and in their dams, and to evaluate how the pat...


Trail, J.C.M.Wissocq, N.M.D'Ieteren, G.D.M.Kakiese, O.Murray, M.[Patterns of Trypanosoma vivax and T. Congolense infection differ in young N'Dama cattle and their dams]Patterns of Trypanosoma vivax and T. Congolense infection differ in young N'Dama cattle and their dams

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

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