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In tropical Africa, the most common and most extensively evaluated Brachiaria species as cultivated pastures are B. brizantha, B. decumbens, and B. mutica. In recent years, B. dictyoneura cv. Llanero, B. humidicola, and B. platynota have also received increased attention. The first four species p...


Ndikumana, J.Leeuw, P.N. de[Regional experience with Brachiaria: Sub-Saharan Africa]Regional experience with Brachiaria: Sub-Saharan Africa

Describes the research approach adopted by an interdisciplinary ILCA team to study a pastoralist production system, summarizing the methodology & results of research on small ruminants' productivity in the Maasai pastoral system, and outlining dif. features of current smallstock research in Kenya...


Leeuw, P.N. dePeacock, C.P.[The productivity of small ruminants in the Maasai pastoral system, Kajiado District, Kenya. An introduction to current research]The productivity of small ruminants in the Maasai pastoral system, Kajiado District, Kenya. An introduction to current research

Research agenda for ILCA's Kenya programme, including details of objectives, programme of work, time schedule, data evaluation procedures and expected benefits for each research component to improve livestock productivity of pastoralists and systems research to improve mixed farming systems, both...


Bekure, S.Leeuw, P.N. dePasha, I.K.O.Tessema, S.Woie, B.M.Maranga, E.K.Shaabani, S.B.[Proposed research programme and research protocols for 1986-1989]Proposed research programme and research protocols for 1986-1989

The first chapter gives a brief description of a pastoral production system, as envisaged by the study team and outlines the multi-disciplinary approach of the study, its sampling design and the data collected. Chapters 2 & 3 describe Kenya's biophysical and socio-economic environments, within wh...


Bekure, S.Leeuw, P.N. deGrandin, B.E.Neate, Paul J.H.[Maasai herding: An analysis of the livestock production system of Maasai pastoralists in eastern Kajiado District, Kenya]Maasai herding: An analysis of the livestock production system of Maasai pastoralists in eastern Kajiado District, Kenya

Reviews various approaches and techniques used in a number of sub-Saharan African countries to collect and analyze data on large-scale ecological changes with particular reference to remote sensing and monitoring techniques in resource inventory; suggests ways to build more effective data bases.


Leeuw, P.N. deMilligan, K.[L'utilisation des enquetes integrees pour le recensement des ressources et le suivi de l'evolution des systemes pastoraux en Afrique au sud du Sahara]L'utilisation des enquetes integrees pour le recensement des ressources et le suivi de l'evolution des systemes pastoraux en Afrique au sud du Sahara

Analyzes the output of the Maasai pastoral system by examining three group ranches in the Kajiado District in Kenya, first in terms of output per animal, household cash and subsistence income from livestock for large-and small-scale producers, and second in terms of output per unit of pastoral land.


Leeuw, P.N. deBekure, S.Grandin, B.E.[Aspects de la productivite de l'elevage dans les ranches collectifs Masai du Kenya]Aspects de la productivite de l'elevage dans les ranches collectifs Masai du Kenya

This report is divided into seven sections. The first section deals with biology of Stylosanthes and its importance in West Africa and Latin America. The second section presents papers on the screening and evaluation of Stylosanthes germplasm. This includes genetic diversity, genetic resources, s...


Leeuw, P.N. deMohamed-Saleem, M.A.Nyamu, A.M.[Stylosanthes as a forage and fallow crop. Proceedings of a regional workshop on the use of Stylosanthes in West Africa]Stylosanthes as a forage and fallow crop. Proceedings of a regional workshop on the use of Stylosanthes in West Africa

This study illustrates how productivity impacts resulting from livestock research can be measured using a herd simulation model, how the results of this model can be extended spatially using geographic information systems (GIS) to determine the potential increase in livestock production that woul...


Kristjanson, Patricia M.Rowlands, G.J.Swallow, B.M.Kruska, R.L.Leeuw, P.N. deNagda, S.M.[Using the economic surplus model to measure potential returns to international livestock research. The case of trypanosomosis vaccine research]Using the economic surplus model to measure potential returns to international livestock research. The case of trypanosomosis vaccine research

Les auteurs analysent la saisonnalite de la feuillaison de 28 especes ligneuses saheliennes afin de caracteriser les disponibilites saisonnieres en feuillage fourrager ainsi que leurs variations interannuelles. Pour chacune des especes, des branchettes de meme calibre ont ete echantillonnees chaq...


Hiernaux, Pierre H.Y.Cisse, M.I.Diarra, L.Leeuw, P.N. de[Fluctuations saisonnieres de la feuillaison des arbres et des buissons saheliens. Consequences pour la quantification des ressources fourrageres]Fluctuations saisonnieres de la feuillaison des arbres et des buissons saheliens. Consequences pour la quantification des ressources fourrageres

This paper deals with foraging behaviour of cattle grazing semi-arid rangelands in the Sahel of Mali. It discusses the location of study site, vegetation in the grazing orbit, herd management and livestock behaviour. Results on seasonal variation in feed supply, selection of the annual grazing or...


Diarra, L.Hiernaux, Pierre H.Y.Leeuw, P.N. de[Foraging behaviour of cattle grazing semi-arid rangelands in the Sahel of Mali]Foraging behaviour of cattle grazing semi-arid rangelands in the Sahel of Mali

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