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CATTLE BREED EVALUATION STUDIES BY THE INTERNATIONAL LIVESTOCK CENTRE FOR AFRICA (ILCA)

Published online by Cambridge University Press:  01 August 2011

J.C.M. Trail
J.C.M. Trail
Affiliation:
International Livestock Centre for Africa, P.O. Box 4ó847, Nairobi, Kenya
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Summary

This note describes work being carried out by ILCA on evaluation of the productivity of N'Dama, Sahiwal and Boran cattle breeds. Indications of the potential of the N'Dama to increase output from areas of trypanosomiasis risk has led to studies throughout West and Central Africa concerned with aspects of trypanotolerant livestock. Studies on the Sahiwal and many different crosses between Sahiwal and Ayrshires under a range of production systems have allowed suggestions to be made on achieving and maintaining optimal contributions from the Sahiwal breed. Similar ongoing studies on the Boran breed are described.

Resume

Cette note passe en revue les travaux du CIEA en matière d'évaluation de la productivité des races bovines N'Dama, Sahiwal et Boran. Comme la race N'Dama semble offrir des possibilités d'accroltre la production dans les zones à risque de trypanosomiase, on a mis en place un réseau de stations d'étude du bétail trypanotolérant qui couvre toute l'Afrique centrale et l'Afrique de l'Ouest. Des études effectuées sur la race pure Sahiwal et différents croisements de Sahiwal et d'Ayrshire dans diffórents systómes d'ólevage ont permis de faire des suggestions sur la manizère de tirer le meilleur profit de la race Sahiwal. La note décrit également les travaux similaires entrepris pour la race Boran.

Resumen

En esta nota se describe la labor realizada por el ILCA en lo relativo a la evaluación de la productividad de las razas de ganado vacuno N'Dama, Sahiwal y Boran. Las indicaciones del potencial de la raza N'Dama para aumentar la producción de las zonas expuestas a la tripanosomiasis ban dado lugar al establecimiento de una red de estaciones en todo el Africa Occidental y central que se ocupa de los aspectos del ganado tripanotolerante. Estudios de la raza Sahiwal y muchos cruces diferentes entre Sahiwal y Ayrshires en diversos sistemas de producción ban permitido hacer sugerencias para lograr y mantener contribuciones óptimas de la raza Sahiwal. Se describen estudios similares actualmente en curso sobre la raza Boran.

Type
Research Articles
Information
Animal Genetic Resources/Resources génétiques animales/Recursos genéticos animales , Volume 1 , April 1983 , pp. 17 - 20
Copyright
Copyright © Food and Agriculture Organization of the United Nations 1983

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References

REFERENCES

Gregory, K.E. and Trail, J.C.M. Rotation crossbreeding with Sahiwal and Ayrshire cattle in the tropics. Journal of Dairy Science ó4.10. 1978–1984. 1981CrossRefGoogle Scholar
ILCA. Sahiwal cattle: an evaluation of their potential contribution to milk and beef production in Africa. Monograph 3, ILCA, Addis Ababa. 1981Google Scholar
ILCA. Trypanotolerant livestock in West and Central Africa. Vol. 1 General Study. Vol. 2 Country Studies. Monograph 2. ILCA, Addis Ababa. 1979Google Scholar
Trail, J.C.M. Merits and demerits of importing exotic cattle compared with improvement of local breeds. Cattle in Africa south of +he Sahara. Intensive animal production in developing countries. Occasional publication no. 4. British Society of Animal Production. 1979Google Scholar
Trail, J.C.M. and Gregory, K.E. Sahiwal cattle in Africa. How they can help improve milk and beef production. Span 24: 28–30. 1981aGoogle Scholar
Trail, J.C.M. and Gregory, K.E. Characterization of the Boran and Sahiwal breeds of cattle for economic characters. Journal of Animal Science 52: 128ó–1293. 1981bGoogle Scholar
Trail, J.C.M. and Gregory, K.E. Production characters of the Sahiwal and Ayrshire breeds and their crosses in Kenya. Tropical Animal Health and Production 14(1): 45–57. 1982CrossRefGoogle ScholarPubMed