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Some West African Bos taurus cattle breeds such as the N'Dama and a number of West African Shorthorns are resistant to tsetse fly-transmitted trypanosomosis. The trait is termed trypanotolerance, for which changes in packed red cell volume percent (PCV) and growth rate following infection are ge...


Waaij, E.H. van derHanotte, Olivier H.Arendonk, Johan A.M. vanKemp, Stephen J.Kennedy, D.Gibson, John P.Teale, A.J.[Population parameters for traits defining trypanotolerance in an F2 cross of N'Dama and Boran cattle]Population parameters for traits defining trypanotolerance in an F2 cross of N'Dama and Boran cattle

This paper reviews the successful N’Dama cattle genetic improvement programme implemented in a low input productions system at the International Trypanotolerance Centre (ITC) in 1994, in the Gambia. The first part of the paper presents the genetic improvement programme. The second part deals with...


Bosso, N.A.Corr, N.Njie, M.Fall, AbdouWaaij, E.H. van derArendonk, Johan A.M. vanJaitner, J.Dempfle, L.Agyemang, K.[The N'Dama cattle genetic improvement programme: A review]The N'Dama cattle genetic improvement programme: A review

To generate information essential for the implementation of breeding schemes suitable for village poultry producers in Ethiopia, a survey was conducted aimed at defining the socioeconomic characteristics of the production environments in different geographic regions, understanding the important f...


Dana, N.Waaij, E.H. van derDessie, TadelleArendonk, Johan A.M. van[Production objectives and trait preferences of village poultry producers of Ethiopia: implications for designing breeding schemes utilizing indigenous chicken genetic resources]Production objectives and trait preferences of village poultry producers of Ethiopia: implications for designing breeding schemes utilizing indigenous chicken genetic resources

This study describes the variations in the physical features and the useful attributes of different populations of indigenous chickens. Five populations of chickens in different regions of Ethiopia were studied based on 13 qualitative traits recorded for a total of 1 125 chickens. Additional meas...


Dana, N.Dessie, TadelleWaaij, E.H. van derArendonk, Johan A.M. van[Morphological features of indigenous chicken populations of Ethiopia]Morphological features of indigenous chicken populations of Ethiopia

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