Descubre y comparte nuestro conocimiento público

Se han encontrado 41 recursos

Resultados de búsqueda

Journal Article 2008

Autor: Kosgey, I.S. Rowlands, G.J. Arendonk, Johan A.M. van Baker, R.L.

A survey was conducted by way of personal interviews with 562 respondents comprising 459 farmers and 103 butchers/traders in selected districts in the central and western parts of Kenya, consisting of three predominantly smallholder and four predominantly pastoral/extensive districts. The study a...

Enlace original: https://cgspace.cgiar.org/handle/10568/33181

Investigación en Agricultura
Enlace permanente
Kosgey, I.S. ,  Rowlands, G.J. ,  Arendonk, Johan A.M. van ,  Baker, R.L. ,  [Small ruminant production in smallholder and pastoral/extensive farming systems in Kenya] ,  Small ruminant production in smallholder and pastoral/extensive farming systems in Kenya
Journal Article 2006

Autor: Kosgey, I.S. Baker, R.L. Udo, H.M.J. Arendonk, Johan A.M. van

Despite the large numbers and importance of adapted indigenous sheep and goats in the tropics, information on sustainable conventional breeding programmes for them is scarce and often unavailable. This paper reviews within-breed selection strategies for indigenous small ruminants in the tropics,...

Enlace original: https://cgspace.cgiar.org/handle/10568/33177

Investigación en Agricultura
Enlace permanente
Kosgey, I.S. ,  Baker, R.L. ,  Udo, H.M.J. ,  Arendonk, Johan A.M. van ,  [Successes and failures of small ruminant breeding programmes in the tropics: A review] ,  Successes and failures of small ruminant breeding programmes in the tropics: A review
Journal Article 2003

Autor: Waaij, E.H. van der Hanotte, Olivier H. Arendonk, Johan A.M. van Kemp, Stephen J. Kennedy, D. Gibson, John P. Teale, A.J.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/29175

Investigación en Agricultura
Enlace permanente
Waaij, E.H. van der ,  Hanotte, Olivier H. ,  Arendonk, Johan A.M. van ,  Kemp, 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
Journal Article 2001

Autor: Vargas, B. Herrero, Mario T. Arendonk, Johan A.M. van

A dynamic performance model was integrated with a model that optimised culling and insemination policies in dairy herds using dynamic programming. The performance model estimated daily feed intake, milk yield and body weight change of dairy cows on the basis of availability and quality of feed an...

Enlace original: https://cgspace.cgiar.org/handle/10568/29197

Investigación en Agricultura
Enlace permanente
Vargas, B. ,  Herrero, Mario T. ,  Arendonk, Johan A.M. van ,  [Interactions between optimal replacement policies and feeding strategies in dairy herds] ,  Interactions between optimal replacement policies and feeding strategies in dairy herds
Book Chapter 2006

Autor: Bosso, N.A. Waaij, E.H. van der Agyemang K.A. Arendonk, Johan A.M. van

Heritabilities and correlations for growth traits in N'Dama cattle under tsetse challenge were estimated using an animal model. Animals were born and weaned in a low to medium tsetse challenge area and, after weaning at 12 months of age, they were transported to a high tsetse challenge area until...

Enlace original: https://cgspace.cgiar.org/handle/10568/70949

Investigación en Agricultura
Enlace permanente
Bosso, N.A. ,  Waaij, E.H. van der ,  Agyemang K.A. ,  Arendonk, Johan A.M. van ,  [Genetic parameters for growth traits in N'Dama cattle under Tsetse challenge in The Gambia. In Genetic improvement of livestock in Tsetse infested areas in west Africa] ,  Genetic parameters for growth traits in N'Dama cattle under Tsetse challenge in The Gambia. In Genetic improvement of livestock in Tsetse infested areas in west Africa
Presentation 2015-05-18

Autor: Arendonk, Johan A.M. van
Enlace original: https://cgspace.cgiar.org/handle/10568/69315

Investigación en Agricultura
Enlace permanente
Arendonk, Johan A.M. van ,  [Long term genetic gains implementation plan for the African Chicken Genetic Gains program] ,  Long term genetic gains implementation plan for the African Chicken Genetic Gains program
Journal Article 2008

Autor: Gizaw, Solomon Komen, Hans Hanotte, Olivier H. Arendonk, Johan A.M. van

Ethiopia has a diverse sheep population, numbering 23.6 million, in parallel with its diverse ecology, production systems and communities. A comprehensive phenotypic and genetic characterization of Ethiopian sheep populations was initiated in 2005 to provide a nationwide framework for the managem...

Enlace original: https://cgspace.cgiar.org/handle/10568/70952

Investigación en Agricultura
Enlace permanente
Gizaw, Solomon ,  Komen, Hans ,  Hanotte, Olivier H. ,  Arendonk, Johan A.M. van ,  [Indigenous sheep resources of Ethiopia: Types, production systems and farmers preferences] ,  Indigenous sheep resources of Ethiopia: Types, production systems and farmers preferences
Book Chapter 2006

Autor: Bosso, N.A. Cisse. M.F. Waaij, E.H. van der Fall, Abdou Arendonk, Johan A.M. van

The International Trypanotolerance Centre’s small ruminant breeding meat production and the trypanotolerance of the animals (sheep and goat) To achieve that goal, selection was based on estimated breeding values for daily weight gain from 4 to 12 months of age measured on trypanotolerance challen...

Enlace original: https://cgspace.cgiar.org/handle/10568/70950

Investigación en Agricultura
Enlace permanente
Bosso, N.A. ,  Cisse. M.F. ,  Waaij, E.H. van der ,  Fall, Abdou ,  Arendonk, Johan A.M. van ,  [Genetic and phenotypic parameters of body weight in west African dwarf goat and Djallonke sheep. In Genetic improvement of livestock in Tsetse infested areas in west Africa] ,  Genetic and phenotypic parameters of body weight in west African dwarf goat and Djallonke sheep. In Genetic improvement of livestock in Tsetse infested areas in west Africa
Journal Article 2006

Autor: Bosso, N.A. Corr, N. Njie, M. Fall, Abdou Waaij, E.H. van der Arendonk, Johan A.M. van Jaitner, J. Dempfle, L. Agyemang, K.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/70951

Investigación en Agricultura
Enlace permanente
Bosso, N.A. ,  Corr, N. ,  Njie, M. ,  Fall, Abdou ,  Waaij, E.H. van der ,  Arendonk, Johan A.M. van ,  Jaitner, J. ,  Dempfle, L. ,  Agyemang, K. ,  [The N'Dama cattle genetic improvement programme: A review] ,  The N'Dama cattle genetic improvement programme: A review
Journal Article 2001-04-13

Autor: Vargas, B. Herrero, Mario T. Arendonk, Johan A.M. van

A dynamic performance model was integrated with a model that optimised culling and insemination policies in dairy herds using dynamic programming. The performance model estimated daily feed intake, milk yield and body weight change of dairy cows on the basis of availability and quality of feed an...

Enlace original: https://cgspace.cgiar.org/handle/10568/2144

Investigación en Agricultura
Enlace permanente
Vargas, B. ,  Herrero, Mario T. ,  Arendonk, Johan A.M. van ,  [Interactions between optimal culling and insemination policies and feeding strategies in dairy herds] ,  Interactions between optimal culling and insemination policies and feeding strategies in dairy herds

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso
Marcar todos
Limpiar todo