Articles by Keyword: Browse

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  1. The response of <em>Acacia karroo</em> plants to defoliation by hand compared to defoliation by goats

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The leaf and shoot growth of Acacia karroo plants defoliated by goats was compared to that of plants in which leaf only or leaf plus shoot‐tips were removed by hand, to simulate goat browsing.
  2. Towards a method of assessing the veld condition of the valley bushveld in the Eastern Cape

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Currently, no technique is available for assessing the condition of Valley Bushveld in the Eastern Cape. The objective of this investigation was to develop a method of scoring bushveld according to its productive condition. It was established, through principal component...
  3. 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...
  4. Effect of intensity and frequency of defoliation on aerial growth and carbohydrate reserve levels in <em>Acacia karroo</em> plants

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Acacia karroo trees were defoliated by goats at two intensities and four frequencies; 2, 4, 8 and 12‐weekly. Leaf accumulation and carbohydrate reserve levels were compared to a non‐defoliated control, and to plants (defoliation controls) which were defoliated for the...
  5. Quantitative description of woody plant communities: Part I. An approach

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Various descriptive units for woody plant communities are proposed. These are the Evapotranspiration Tree Equivalent (ETTE), Browse Tree Equivalent (BTE) and Canopied Subhabitat Index (CSI), which describe the status of a woody community in terms of potential moisture use, value...
  6. The response of <em>Acacia karroo</em> plants to defoliation of the upper or lower canopy

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The response of Acacia karroo trees to defoliation of either the upper or lower canopy only, was compared experimentally with that of plants whose whole canopies had been defoliated at a range of defoliation levels. These plants were very sensitive...
  7. Quantifying indices of potential competitiveness and browse productivity of single‐stemmed <em>Acacia karroo</em> trees in south‐eastern Africa

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The prediction of indices of potential competition with grass and browse productivity of single‐stemmed Acacia karroo trees, using various trunk and canopy parameters, was evaluated on the basis of the variance accounted for by each of four operators and the...
  8. Grazing behaviour and diet selection of Barotse cattle on a communally grazed floodplain in west Zambia

    Grazing behaviour and diet selection of Barotse cattle on a communally grazed floodplain in west Zambia

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Grazing behaviour and diet selection of cattle were studied on a communally grazed floodplain and its adjacent wooded uplands in western Zambia to identify the interaction between basic herd management practices, foraging behaviour and body condition of cattle. On average,...
  9. The nutritional value of <em>Zizyphus spina-christi</em> for goat production among the pastoralists of Kalu district, South Wello, Ethiopia

    The nutritional value of <em>Zizyphus spina-christi</em> for goat production among the pastoralists of Kalu district, South Wello, Ethiopia

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Fifteen yearling goats of similar weight were used to evaluate the potential of Zizyphus spina-christi leaves as a supplement to goats fed on Cynodon dactylon grass. Animals were randomly assigned to five feeding regimes and individually stall-fed for a preliminary...
  10. Cattle diet selection during the hot-dry season in a semi-arid region of Namibia

    Cattle diet selection during the hot-dry season in a semi-arid region of Namibia

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    The northern Kalahari Desert is dominated by Terminalia sericea savanna woodland and a sparse herbaceous layer. Range ecologists regard T. sericea as a major encroaching species and that such encroachment represents a cost to cattle production. In contrast, pastoralists regard...