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.
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.
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D'Ieteren, G.D.M.
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Trail, J.C.M.
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Kakiese, O.
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[Quantification of the relative importance of trypanotolerance measurements on productivity of N'Dama cattle (Addendum)]
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Quantification of the relative importance of trypanotolerance measurements on productivity of N'Dama cattle (Addendum)
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.
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Pelo, M.
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[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
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.
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Wissocq, N.M.
,
D'Ieteren, G.D.M.
,
Kakiese, O.
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Murray, M.
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[Patterns of Trypanosoma vivax and T. Congolense infection differ in young N'Dama cattle and their dams]
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Patterns of Trypanosoma vivax and T. Congolense infection differ in young N'Dama cattle and their dams
A study was conducted to assess the correlation between criteria of trypanotolerance and production. N'dama post weaner cattle with different weights and from different age groups were studied for weight gain, packed cell volume (PCV) and for the presence of trypanosomes. The analysis approach wa...
D'Ieteren, G.D.M.
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Feron, A.
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Kakiese, O.
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Kemp, Stephen J.
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Maille, J.C.
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Teale, A.J.
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Trail, J.C.M.
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Yangari, G.
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[Aspects of trypanotolerance and their association with performance in N'Dama cattle]
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Aspects of trypanotolerance and their association with performance in N'Dama cattle
Discusses the genetic aspects of criteria of trypanotolerance including parasitaemia, anaemia control and immune response. Includes data on heritability estimates for daily liveweight change, for PCV under low & high trypanosome prevalence, and for number of treatments required in four periods af...
Matching animal health and performance data were recorded over the 2 year period from weaning at 10 months of age on 225 N'Dama cattle in a high natural tsetse challenge situation in Zaire. Four parameters that are regarded as possible indicators of trypanotolerance, species of trypanosomes detec...
Trail, J.C.M.
,
Wissocq, N.M.
,
D'Ieteren, G.D.M.
,
Kakiese, O.
,
Murray, M.
,
[Quantitative phenotyping of N'Dama cattle for aspects of trypanotolerance under field tsetse challenge]
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Quantitative phenotyping of N'Dama cattle for aspects of trypanotolerance under field tsetse challenge