Articles by Keyword: Trout Farming

Search results for Trout Farming

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  1. THE EFFECTS OF TROUT-FARM EFFLUENTS ON BENTHIC INVERTEBRATE COMMUNITY STRUCTURE IN RIVERS IN THE SOUTH-WESTERN CAPE, SOUTH AFRICA

    THE EFFECTS OF TROUT-FARM EFFLUENTS ON BENTHIC INVERTEBRATE COMMUNITY STRUCTURE IN RIVERS IN THE SOUTH-WESTERN CAPE, SOUTH AFRICA

    Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences
    The south-western Cape is currently responsible for 45% of the total annual trout production in South Africa and further expansion of this industry in the region is likely. A preliminary survey of seven trout farms situated on the upper reaches...
  2. An extension approach for the national grazing strategy based on farmer characteristics in the eastern cape<sup>1</sup>

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The development of a sound communication programme for the National Grazing strategy should be based on an understanding of the characteristics of the farmer population of the area concerned. The social, socio‐demographic, socio‐economie, socio‐psychological, communication and agricultural production characteristics of...
  3. Loss of nitrogen fertility and its restoration in some Orange Free State soils

    Loss of nitrogen fertility and its restoration in some Orange Free State soils

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The effects of present or past cultivation on nitrogen fertility in some central Orange Free State soils were investigated by the comparison of paired samples of cultivated or reverted soils with uncultivated soils situated as closely as possible to one...
  4. Changes in chemical properties and temperature during the degradation of organic wastes subjected to simple composting protocols suitable for small-scale farming, and quality of the mature compost

    Changes in chemical properties and temperature during the degradation of organic wastes subjected to simple composting protocols suitable for small-scale farming, and quality of the mature compost

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Despite the high cost of chemical fertilizers and pesticides, composting is not widely practiced in many rural communities in South Africa. To demonstrate the simplicity and benefit of composting, four composting protocols were selected, based on technology and resources available...
  5. The relative abundance of maize stem borers and their parasitoids at the Tshiombo irrigation scheme in Venda, South Africa

    The relative abundance of maize stem borers and their parasitoids at the Tshiombo irrigation scheme in Venda, South Africa

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Maize is an important resource in many small-scale farming areas in South Africa and especially on irrigation schemes in the Limpopo Province where this crop is cultivated under irrigation in sub-tropical conditions. The aim of this study was to determine...
  6. Biomass production, weed suppression, nitrogen and phosphorus uptake in white oat (<em>Avena sativa</em> L.) and grazing vetch (<em>Vicia dasycarpa</em> L.) cover crop bicultures under an irrigated no-till system

    Biomass production, weed suppression, nitrogen and phosphorus uptake in white oat (<em>Avena sativa</em> L.) and grazing vetch (<em>Vicia dasycarpa</em> L.) cover crop bicultures under an irrigated no-till system

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Cultivation of a multipurpose cover crop is of interest to Eastern Cape farmers experiencing soil infertility and weed pressures. The objective of the study was to investigate effects of oat–vetch bicultures on biomass production, weed suppression, and nitrogen (N) and...
  7. FAECAL BACTERIAL CONTAMINATION OF TROUT HATCHERY WATER EFFLUENT

    FAECAL BACTERIAL CONTAMINATION OF TROUT HATCHERY WATER EFFLUENT

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    This study was undertaken to determine the occurrence of faecal bacteria in two trout hatcheries in the Transvaal Province, South Africa. The results indicate that variations in numbers of enteric bacteria are partly caused by man-made changes to the influent...
  8. FRESHWATER FISH CONSERVATION IN SOUTH AFRICA: A RISING TIDE

    FRESHWATER FISH CONSERVATION IN SOUTH AFRICA: A RISING TIDE

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    Attitudes towards the conservation of South African indigenous freshwater fishes have changed radically. Initially alien sport angling species were the focus of fisheries interest and local fishes were considered worthless. Gradually, in response to the work of collectors, taxonomists and...
  9. Climate change perceptions, drought responses and views on carbon farming amongst commercial livestock and game farmers in the semiarid Great Fish River Valley, Eastern Cape province, South Africa

    Climate change perceptions, drought responses and views on carbon farming amongst commercial livestock and game farmers in the semiarid Great Fish River Valley, Eastern Cape province, South Africa

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    There is increasing evidence that climate change will be one of the primary challenges facing future development and agriculture. Farmers, whether crop or livestock farmers, will be faced with tradeoffs and constraints as climate change exposes them to greater risk...
  10. Crop–livestock interactions: implications for policy-makers and for farmers

    Crop–livestock interactions: implications for policy-makers and for farmers

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    This paper was prepared in response to a paper prepared by Vetter (in this issue) that addressed the issue of policy development related to sustainable management of rangelands. In line with the sentiments of Vetter, policies are understood to guide...