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Journal Article 2016-01-15

Autor: Wondmeneh, E. Waaij, Liesbeth van der Udo, H.M.J. Dessie, Tadelle Arendonk, Johan A.M. van

A selective breeding program was implemented to improve the performance of indigenous chickens. Improved chicken from the 7th generation were compared with commercial layer, crossbred and unselected indigenous chickens both on-station and on-farm. A total of 870 chickens were used. More than 600 ...

Enlace original: https://cgspace.cgiar.org/handle/10568/69191

Investigación en Agricultura
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Wondmeneh, E. ,  Waaij, Liesbeth van der ,  Udo, H.M.J. ,  Dessie, Tadelle ,  Arendonk, Johan A.M. van ,  [Comparison of different poultry breeds under station and on-farm conditions in Ethiopia] ,  Comparison of different poultry breeds under station and on-farm conditions in Ethiopia
Journal Article 2002-06-02

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

Economic values for production traits (carrier, fat, protein, and dressing percentage) and functional traits (conception rate, survival rate, body weight, and rumen capacity) were calculated for Holstein cattle of Costa Rica. Economic values were derived using a bio-economic model that combined g...

Enlace original: https://cgspace.cgiar.org/handle/10568/1838

Investigación en Agricultura
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Vargas, B. ,  Groen, A.F. ,  Herrero, Mario T. ,  Arendonk, Johan A.M. van ,  [Economic values for production and functional traits in Holstein cattle of Costa Rica] ,  Economic values for production and functional traits in Holstein cattle of Costa Rica
Journal Article 2003

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

Breeding objectives were developed for meat sheep in smallholder production circumstances in the tropics. The traits considered were litter size, lambing frequency, pre-weaning, and post-weaning lamb survival to 12 months, ewe survival, lamb live weight at 12-month, mature ewe live weight, consum...

Enlace original: https://cgspace.cgiar.org/handle/10568/33171

Investigación en Agricultura
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Kosgey, I.S. ,  Arendonk, Johan A.M. van ,  Baker, R.L. ,  [Economic values for traits of meat sheep in medium to high production potential areas of the tropics] ,  Economic values for traits of meat sheep in medium to high production potential areas of the tropics
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
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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
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
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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
Journal Article 2005

Autor: Koudande, O.D. Arendonk, Johan A.M. van Iraqi, F.A.

A marker-assisted introgression (MAI) experiment was conducted to use genetic markers to transfer each of the three trypanotolerance QTL from a donor mouse strain, C57BL/6, into a recipient mouse strain, A/J. We used a backcross strategy that consisted of selecting two lines, each carrying two of...

Enlace original: https://cgspace.cgiar.org/handle/10568/29205

Investigación en Agricultura
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Koudande, O.D. ,  Arendonk, Johan A.M. van ,  Iraqi, F.A. ,  [Marker-assisted introgression of trypanotolerance QTL in mice] ,  Marker-assisted introgression of trypanotolerance QTL in mice
Journal Article 2018-06-01

Autor: Onzima, R.B. Gizaw, Solomon Kugonza, D.K. Arendonk, Johan A.M. van Kanis, E.
Enlace original: https://cgspace.cgiar.org/handle/10568/93066

Investigación en Agricultura
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Onzima, R.B. ,  Gizaw, Solomon ,  Kugonza, D.K. ,  Arendonk, Johan A.M. van ,  Kanis, E. ,  [Production system and participatory identification of breeding objective traits for indigenous goat breeds of Uganda] ,  Production system and participatory identification of breeding objective traits for indigenous goat breeds of Uganda
Journal Article 2014-10-15

Autor: Gizaw, Solomon Arendonk, Johan A.M. van Valle-Zárate, A. Haile, Aynalem Rischkowsky, Barbara A. Dessie, Tadelle Okeyo Mwai, Ally

A simulation study was conducted to optimize a cooperative village-based sheep breeding scheme for Menz sheep of Ethiopia. Genetic gains and profits were estimated under nine levels of farmers' participation and three scenarios of controlled breeding achieved in the breeding programme, as well as...

Enlace original: https://cgspace.cgiar.org/handle/10568/67387

Investigación en Agricultura
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Gizaw, Solomon ,  Arendonk, Johan A.M. van ,  Valle-Zárate, A. ,  Haile, Aynalem ,  Rischkowsky, Barbara A. ,  Dessie, Tadelle ,  Okeyo Mwai, Ally ,  [Breeding programmes for smallholder sheep farming systems: II. Optimization of cooperative village breeding schemes] ,  Breeding programmes for smallholder sheep farming systems: II. Optimization of cooperative village breeding schemes
Journal Article 2014-10-15

Autor: Gizaw, Solomon Rischkowsky, Barbara A. Valle-Zárate, A. Haile, Aynalem Arendonk, Johan A.M. van Okeyo Mwai, Ally Dessie, Tadelle

Village- and central nucleus-based schemes were simulated and evaluated for their relative bio-economic efficiencies, using Ethiopia's Menz sheep as example. The schemes were: village-based 2-tier (Scheme-1) and 1-tier (Scheme-2) cooperative village breeding schemes, dispersed village-based nucle...

Enlace original: https://cgspace.cgiar.org/handle/10568/67393

Investigación en Agricultura
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Gizaw, Solomon ,  Rischkowsky, Barbara A. ,  Valle-Zárate, A. ,  Haile, Aynalem ,  Arendonk, Johan A.M. van ,  Okeyo Mwai, Ally ,  Dessie, Tadelle ,  [Breeding programs for smallholder sheep farming systems: I. Evaluation of alternative designs of breeding schemes] ,  Breeding programs for smallholder sheep farming systems: I. Evaluation of alternative designs of breeding schemes

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