Relationships were evaluated between trypanosome infection as measured by antigen detection enzyme immunoassays (antigen ELISA), anaemia as determined by average packed red cell volume (PCV), and animal performance as assessed by daily weight gain in 99 N'Dama cattle in Gabon exposed to natural t...
Trail, J.C.M.
,
D'Ieteren, G.D.M.
,
Viviani, P.
,
Yangari, G.
,
Nantulya, V.M.
,
[Relationships between trypanosome infection measured by antigen detection enzyme immunoassays, anaemia and growth in trypanotolerant N'Dama cattle]
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Relationships between trypanosome infection measured by antigen detection enzyme immunoassays, anaemia and growth in trypanotolerant N'Dama cattle
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]
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Use of antigen-detection immunoassays in assessment of trypanotolerance in N'Dama cattle
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]
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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]
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Evaluation of a field test for trypanotolerance in young N'Dama cattle
The significance of Glossina fusca group tsetse flies as vectors of cattle trypanosomiasis was examined using biconical traps to survey tsetse populations at one site in Gabon and two sites in Zaire. Mean trypanosome infection rates in G. tabaniformis Westwood over the study period ranged from 8....
Leak, S.G.A.
,
Colardelle, C.
,
D'Ieteren, G.D.M.
,
Dumont, P.
,
Feron, A.
,
Jeannin, P.
,
Minengu, M.
,
Mulungo, M.
,
Ngamuna, S.
,
Ordner, G.
,
Sauveroche, B.
,
Trail, J.C.M.
,
Yangari, G.
,
[Glossina fusca group tsetse as vectors of cattle trypanosomiasis in Gabon and Zaire]
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Glossina fusca group tsetse as vectors of cattle trypanosomiasis in Gabon and Zaire
Evaluates in detail how environmental and stress factorts affect trypanosome infection in N'Dama cows and their calves, the linkages with curative drug treatment given under the management regime prevailing, the linkages with anaemia control as measured by packed red cell volume (PCV), and the re...
Trail, J.C.M.
,
D'Ieteren, G.D.M.
,
Murray, M.
,
Ordner, G.
,
Yangari, G.
,
Collardelle, C.
,
Sauveroche, B.
,
Maille, J.C.
,
Viviani, P.
,
[Measurement of trypanotolerance criteria and their effect on reproductive performance of N'Dama cattle]
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Measurement of trypanotolerance criteria and their effect on reproductive performance of N'Dama cattle