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Discusses factors influencing liveweight in a range of trypanotolerance network situations. Analyses liveweight traits, viz, dam liveweights at parturition and weaning, dam liveweight change between parturition and weaning, progeny liveweights at birth and weaning and progeny pre-weaning daily gain.


Maehl, J.H.H.Coulibaly, L.Defly, A.D'Ieteren, G.D.M.Feron, A.Grundler, G.Hecker, P.Itty, P.Mawuena, K.Morkramer, G.Mulungo, M.Nagda, S.M.Paling, R.W.Pelo, M.Rarieya, J.M.Schuetterle, A.Sheria, M.Thorpe, W.R.Trail, J.C.M.[Factors influencing liveweight in a range of network situations]Factors influencing liveweight in a range of network situations

Discusses the productivity of N;Dama cattle at Kolo and Mushie ranches (Zaire). Includes data on productivity under zero (Kolo) and high (Mushie) trypanosomiasis risk (1984-86). Compares the productivity of Boran and N'Dama cattle under ranch management at five sites in Africa.


Feron, A.D'Ieteren, G.D.M.Durkin, J.W.Kakiese, O.Maehl, J.H.H.Mulungo, M.Nagda, S.M.Paling, R.W.Pelo, M.Rarieya, J.M.Sheria, M.Thorpe, W.R.Trail, J.C.M.[Productivity of ranch N'Dama cattle under trypanosomiasis risk]Productivity of ranch N'Dama cattle under trypanosomiasis risk

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

The genetic components of trypanotolerance measurements must be determined in well controlled on going production systems where the necessary identification and/or quantification of environment and genetic effects are possible. A resource population has been established in the Mushie District Ban...


Wissocq, N.M.Monsengo, B.D'Ieteren, G.D.M.Mommens, G.[A N'Dama cattle resource population for research on trypanotolerance]A N'Dama cattle resource population for research on trypanotolerance

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

Emphasises the importance of trypanotolerance by indicating that trypanotolerant breeds were at least as productive as other indigenous African breeds in areas of zero to low tsetse challenge and that in areas where tsetse challenge was substantial, only trypanotolerant breeds could survive. It w...


Trail, J.C.M.D'Ieteren, G.D.M.[Characterisation of trypanotolerant cattle: a case study]Characterisation of trypanotolerant cattle: a case study

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

Reports the prevalence species and intensity of trypanosome parasitaenia (1986-1987) for N'Dama cattle managed in village herds inforest and plateau areas of Idiofa, Zaire, Examines tsese challenge & its relationshipto trypanosome prevalence. Reports the duration of infection, pattern of parasita...


Ngamuna, S.D'Ieteren, G.D.M.Itty, P.Leak, S.G.A.Maehl, J.H.H.Minengu, M.Nagda, S.M.Paling, R.W.Rarieya, J.M.Thorpe, W.R.Trail, J.C.M.[Trypanosomiasis in N'Dama cattle under village management in Zaire]Trypanosomiasis in N'Dama cattle under village management in Zaire

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