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Résultats de la recherche

Showing items 1 through 9 of 13.
  1. Library Resource
    Rapports et recherches
    décembre, 1990
  2. Library Resource
    Rapports et recherches
    décembre, 1990
  3. Library Resource
    janvier, 1990
    Botswana, Zimbabwe, Afrique sub-saharienne

    This document contains a collection of critical comments by experts working in the field of pastoralism with regard to several PDN papers.

  4. Library Resource
    janvier, 1990
    Zimbabwe, Afrique sub-saharienne

    In their recent paper, de Leeuw and Tothill (1990) discussed the shortcomings of estimating carrying capacity (CC) of pastoral systems in Africa. They noted the difficulty of determining available forage per animal due to high annual and spatial variability in plant production, seasonal changes in forage quantity and quality, livestock species mix, and the use of supplemental feeds.

  5. Library Resource
    janvier, 1990
    Botswana, Zimbabwe, Afrique sub-saharienne

    This article suggests that communual rangeland management policies in Botswana and Zimbabwe are based on incorrect technical assumptions about the stability of semiarid rangelands, the nature of rangeland degradation, and the benefits of destocking. Consequently, inappropriate policies, stressing the need to destock and stabilise the rangelands, are pursued.Acknowledgement of the great instability but intrinsic resilience of rangeland would encourage the Governments to more favourable regard the opportunistic stocking strategies of the agro-pastoralists of the Communual Areas.

  6. Library Resource
    janvier, 1990
    Afrique sub-saharienne

    Ever since colonial administrators and western trained scientists became involved in sub-Saharan Africa in the early 20th century and were faced with the task of governing countries where livestock production was a major economic enterprise, the proper utilisation of rangelands became a major concern. While during most of the colonial era devastating epidemics (like rinderpest and pleuropneumonia) kept the growth of livestock populations in check, during the 1950s and 1960s regional campaigns of eradicating these major cattle diseases created a continuous increase in livestock numbers.

  7. Library Resource
    Documents et rapports de conférence
    décembre, 1990

    Presents and discusses research results on feed resources, agroindustrial by-products utilisation, forage production, use of crop residues, dairy feeding systems, feeding strategies, introduction and adoption of improved forage technologies, nutritive value of different forages, effects of management on animal performance, effect of supplements on feed utilisation, potential of agricultural by-products as animal feeds, and effects of management on pasture grasses & legumes; and evaluates the utilisation of these results by smallholders.

  8. Library Resource
    Rapports et recherches
    décembre, 1990

    Provides a brief outline of the theory and practice of livestock systems research, and presents the fruits of both ILCA's own long experience of livestock systems research and of expertise and efforts of others in the field. The manual may be of use to a wide audience, including those who need to study livestock systems in Africa in the context of development activities rather than research.

  9. Library Resource
    Rapports et recherches
    décembre, 1990

    Discusses the considerations relating to economic policy, supporting institutions and marketing and consumer demand. Classifies and discusses market functions and analyses market organization and institutions of marketing. Looks into the purpose of marketing studies. Discusses some lessons from past livestock marketing studies.

  10. Library Resource
    Documents et rapports de conférence
    décembre, 1990
    Kenya, Afrique, Afrique orientale

    Presents procedures for feed budgeting and allocation developed to access the quantity and quality of all feed components and to determine the production goals of each enterprise and allocates feed in relation to their requirements within the framework of overall feed supplies.

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