Articles by Author: G M Brockett

Search results for G M Brockett

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  1. Results of grazing trials on ladino clover

    Results of grazing trials on ladino clover

    Ladino white clover grown under irrigation at the Kokstad Research Station exhibits two major periods of growth, the one in the spring when growth rates reach values of 1 100 kg DM/ha/week and the other in autumn, when a maximum...
  2. A comparison of grazing management techniques with sheep on ladino clover pastures

    A comparison of grazing management techniques with sheep on ladino clover pastures

    A comparison of grazing management techniques revealed that, in general, lamb performance under a continuous grazing system was superior to that measured under a rotational grazing system. Lamb performance was also superior at moderate to low levels of pasture dry...
  3. The effect of stocking rate and grazing system on the performance of beff steers grazing an

    The effect of stocking rate and grazing system on the performance of beff steers grazing an

    Animal average daily growth shows a characteristic drop in the spring/early summer period (until 31 December), a slight increase over the mid‐summer period (January/February) and a rapid decline in autumn (March). Growth ranges from 0,8 to 0,5 kg/animal/day in spring/early...
  4. The growth of young cattle and sheep managed on a preference and follower herd basis within a rotational grazing system on veld

    The growth of young cattle and sheep managed on a preference and follower herd basis within a rotational grazing system on veld

    The trial was carried out at the Kokstad Research Station in the summer rainfall area on the Eastern sea board of South Africa. Growing cattle and sheep in the first season and cattle only in the second were run on...
  5. The effect of defoliation on the persistence of <em>elionurus muticus</em> (spreng.) kunth in the highland sourveld of natal

    The effect of defoliation on the persistence of <em>elionurus muticus</em> (spreng.) kunth in the highland sourveld of natal

    A small plot trial with different heights of defoliation of unpalatable Elionurus muticus and other grass species was conducted over a six year period in the drier phase of the Highland Sourveld of Natal. Results indicate that moderate defoliation of...
  6. The performance of tropical pastures in the drier phase of the Highland sourveld of Natal

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Several tropical grasses (Acroceras macrum, Cenchrus ciliaris, Cyndon sp., Digitaria sp. and Pennisetum clandestinum) and legumes (Desmodium uncinatum and Lotononis bainesii) were evaluated at the Kokstad Research Station (Bioclimatic sub‐region 4f of Natal) over a period of seven years. The...
  7. Evaluation of veld potential in east griqualand using beef cattle under two grazing management systems

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Beef production from veld, in the short term, was found to be greater under a continuous grazing system than under a rotational grazing system. Average daily gains decreased from a maximum in late‐spring and the highest three‐year mean value was...
  8. Sampling efficiency for species composition assessments using the wheel-point method in a semi-arid savanna

    Sampling efficiency for species composition assessments using the wheel-point method in a semi-arid savanna

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    A pilot survey to determine the sampling efficiency of the wheel-point method, using the nearest plant method, to assess species composition (using replicate similarity related to sampling intensity, and total sampling time) was conducted on three plot sizes (20 ×...
  9. Pilot survey to assess sample size for herbaceous species composition assessments using a wheel-point apparatus on the Zululand coastal plain

    Pilot survey to assess sample size for herbaceous species composition assessments using a wheel-point apparatus on the Zululand coastal plain

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    A pilot survey to determine sub-sample size (number of point observations per plot) for herbaceous species composition assessments, using a wheel-point apparatus applying the nearest-plant method, was conducted. Three plots differing in species composition on the Zululand coastal plain were...
  10. Research note: Calibrating a disc pasture meter to estimate grass fuel loads on the Zululand coastal plain

    Research note: Calibrating a disc pasture meter to estimate grass fuel loads on the Zululand coastal plain

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    A disc meter was calibrated to estimate fuel load on the Zululand coastal plain. The regression model was valid for fuel load estimates within a disc height of 1–58 cm. The mean calibrated disc height was 11.8 cm. Estimated fuel...