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.
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D'Ieteren, G.D.M.
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Feron, A.
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Kakiese, O.
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Mulungo, M.
,
Pelo, M.
,
[Effect of trypanosome infection, control of parasitaemia and control of anaemia development on productivity of N'Dama cattle]
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Effect of trypanosome infection, control of parasitaemia and control of anaemia development on productivity of N'Dama cattle
Report of a study on the economics of trypanotolerant livestock production with station cattle and village cattle and sheep. Presents data on overall cattle & sheep production parameteres, economic parameters including veterinary services, veterinary treatments, fodder, mineral blocks, night krau...
Morkramer, G.
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Defly, A.
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D'Ieteren, G.D.M.
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Grundler, G.
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Itty, P.
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Leak, S.G.A.
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Maehl, J.H.H.
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Mawuena, K.
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Nagda, S.M.
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Rarieya, J.M.
,
Thorpe, W.R.
,
Trail, J.C.M.
,
[Economic aspects of recently introduced trypanotolerant livestock production under trypanosomiasis risk in southern Togo]
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Economic aspects of recently introduced trypanotolerant livestock production under trypanosomiasis risk in southern Togo
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.
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Hecker, P.
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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.
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Nankodaba, G.
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Ordner, G.
,
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
Reports the productivity levels achieved by grade Boran cattle maintained by chemoprophylaxis at Mkwaja ranch (Tanzania) from 1973 to 1982. Analyses the effects of year and season of calving on birth, cow age, calf sex and area & location of herd on performance of the environmental influences. Ev...
Evaluates the effects of trypanosome infection and other factors on parturition interval (1984-1986) at Network sites of Avetonou, Boundiali & Mushie. Presents data on litter size, lambing interval and calving interval.
Thorpe, W.R.
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Coulibaly, L.
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Defly, A.
,
D'Ieteren, G.D.M.
,
Feron, A.
,
Grundler, G.
,
Hecker, P.
,
Itty, P.
,
Maehl, J.H.H.
,
Mawuena, K.
,
Morkramer, G.
,
Mulungo, M.
,
Nagda, S.M.
,
Paling, R.W.
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Pelo, M.
,
Rarieya, J.M.
,
Schuetterle, A.
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Trail, J.C.M.
,
[Factors influencing reproductive performance in a range of network situations]
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Factors influencing reproductive performance in a range of network situations
Considerable progress has been made in defining and measuring criteria of trypanotolerance since the late 1970's, when ILCA, FAO and UNEP worked with researchers in 18 West and Central African countries to show clear relationship between level of trypanosomiasis risk and animal performance. Durin...
Trail, J.C.M.
,
D'Ieteren, G.D.M.
,
[Phenotypic and genetic parameter estimates of factors related to the performance of trypanotolerant livestock]
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Phenotypic and genetic parameter estimates of factors related to the performance of trypanotolerant livestock
The exploitation of resistance traits very much relies on the understanding of the mechanisms underlying trypanotolerance, their characterisation in the field, the identification of practical measures of trypanotolerance characteristics, the evaluation of their linkage with final livestock output...
D'Ieteren, G.D.M.
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Wissocq, N.M.
,
Trail, J.C.M.
,
Nantulya, V.M.
,
Masake, R.
,
[Parasite control and assessment of trypanotolerance]
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Parasite control and assessment of trypanotolerance
Presents preliminary results of a study of N'Dama cattle introduced in a metayage system in Zaire. Studies tsetse relative densities, tsetse challenge, corrected tsetse challenge, trypanosome prevalence and PCV in gallery forest, savanna woodland and grass savanna areas. Also presents data on fee...
Winckel, F. van
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D'Ieteren, G.D.M.
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Leak, S.G.A.
,
Maehl, J.H.H.
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Minengu, M.
,
Nagda, S.M.
,
Ngamuna, S.
,
Rarieya, J.M.
,
Rowlands, G.J.
,
Thorpe, W.R.
,
Trail, J.C.M.
,
[Preliminary results of a study of N'Dama cattle introduced in a metayage system in Idiofa District, Zaire]
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Preliminary results of a study of N'Dama cattle introduced in a metayage system in Idiofa District, Zaire
This paper reviews studies on the relationships between trypanotolerance and performance of cattle, and the genetics of trypanotolerance traits. Results of these studies are used to discuss the practical possibilities of increasing trypanotolerance through selection.