Articles by Keyword: Dietary Switching

Search results for Dietary Switching

We found 53 results for you
  1. The rate of consumption of bush and grass by goats in a representative <em>acacia karroo</em> savanna community in the Eastern Cape

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Consumption of browse and grass in a representative Acacia karroo savanna community was measured. Acacia karroo was preferred to grass. It was selected almost exclusively when available at high leaf densities. Grass was consumed in significant amounts only when approximately...
  2. The relationship between sward structure, ingestive behaviour and dietary quality in cattle grazing a <em>Chloris gayana</em> pasture

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The relationship between sward structure, ingestive behaviour (bite size, biting rate and intake rate) and dietary crude protein (CP) content was studied on a Chloris gayana pasture at different growth stages using oesopha‐geally‐fistulated steers. As the pasture matured, leaf table...
  3. PRELIMINARY OBSERVATIONS ON THE MACROCRUSTACEA OF COASTAL LAKES IN THE VICINITY OF RICHARDS BAY, ZULULAND, SOUTH AFRICA

    PRELIMINARY OBSERVATIONS ON THE MACROCRUSTACEA OF COASTAL LAKES IN THE VICINITY OF RICHARDS BAY, ZULULAND, SOUTH AFRICA

    Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences
    A limited amount of research has been carried out on the four coastal lakes in the Richards Bay area. Due to the impending threat of water pollution from industrial, mining and residential areas within the catchments of these lakes there...
  4. A COMPARISON OF THE FOOD SOURCES OF STONEFLIES (PLECOPTERA) FROM AN OPEN-AND A CLOSED-CANOPY HEADWATER STREAM IN SOUTH AFRICA USING STABLE-ISOTOPE TECHNIQUES

    A COMPARISON OF THE FOOD SOURCES OF STONEFLIES (PLECOPTERA) FROM AN OPEN-AND A CLOSED-CANOPY HEADWATER STREAM IN SOUTH AFRICA USING STABLE-ISOTOPE TECHNIQUES

    Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences
    The effects of different local food resources on the diets of some filipalpian stonefly nymphs (Aphanicerca spp.) were investigated. Animals from two headwater reaches, one primarily allochthonously driven and the other an open-canopied autochthonous-based system were compared. However, gut and...
  5. Mixed livestock grazing in diverse temperate and semi-arid environments

    Mixed livestock grazing in diverse temperate and semi-arid environments

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    The need for an annual increase of 2% in global food production demands knowledge on how best to use natural grazing land resources. Taken with the requirement to protect resources, this need creates conflicting demands on grazing land management. Concerns...
  6. Diet selection of goats in the communally grazed Richtersveld National Park

    Diet selection of goats in the communally grazed Richtersveld National Park

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    The study provided an account of the diet selection of goats within the Richtersveld National Park and focused on (a) diet composition, (b) plant growth-forms, (c) principal and preferred food plants. The conservation status of these food plants was also...
  7. Feeding characteristics of sheep (<em>Ovis aries</em>) and Grant's gazelles (<em>Gazella granti</em>) on Kapiti ranch, Kenya

    Feeding characteristics of sheep (<em>Ovis aries</em>) and Grant's gazelles (<em>Gazella granti</em>) on Kapiti ranch, Kenya

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    A study was conducted to determine the dietary characteristics of sheep and Grant's gazelles on Kapiti Ranch, Kenya. The botanical composition of the diet was determined using the faecal microhistological technique. Plant species in the diets were categorised into grass,...
  8. Factors affecting <em>in sacco</em> dietary degradation by Ankole cattle grazing natural range pastures in Uganda

    Factors affecting <em>in sacco</em> dietary degradation by Ankole cattle grazing natural range pastures in Uganda

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    The in sacco disappearance of dietary dry matter after 48h of incubation in the rumen (DMd) was examined for its relationship with seasonal changes in neutral detergent fibre (NDFd), crude protein (CPd), cellulose (CELL), hemicellulose (HCELL), acid detergent lignin (ADLd)...
  9. Fatty acid composition of muscle and heart tissue of Nile perch, <em>Lates niloticus</em>, and Nile tilapia, <em>Oreochromis niloticus</em>, from various populations in Lakes Victoria and Kioga, Uganda

    Fatty acid composition of muscle and heart tissue of Nile perch, <em>Lates niloticus</em>, and Nile tilapia, <em>Oreochromis niloticus</em>, from various populations in Lakes Victoria and Kioga, Uganda

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The fatty acid composition in the heart tissue and muscle tissue of the Nile perch, Lates niloticus, and Nile tilapia, Oreochromis niloticus populations from Lakes Kioga and Victoria was determined by methanolysis and gas chromatography of the resulting fatty acid...
  10. A review of the potential role of tumour-promoting compounds produced by <em>Lyngbya majuscula</em> in marine turtle fibropapillomatosis

    A review of the potential role of tumour-promoting compounds produced by <em>Lyngbya majuscula</em> in marine turtle fibropapillomatosis

    Item type: Journal Article • Journal: African Journal of Marine Science
    Harmful algal blooms (HABs) have increased in abundance and severity in recent decades. Whereas the implications for human impacts and intoxication resulting from blooms have been extensively studied, the ecological implications of these microalgae are less well understood. Many HAB...