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    • Journal of Range Management, Volume 54 (2001)
    • Journal of Range Management, Volume 54, Number 5 (September 2001)
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    Evaluation of 3 techniques for determining diet composition

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    Author
    Henley, S. R.
    Smith, D. G.
    Raats, J. G.
    Issue Date
    2001-09-01
    Keywords
    feces collection
    diet study techniques
    cud
    direct observation
    shrublands
    errors
    sampling
    herbivores
    goats
    grazing
    feeding preferences
    microhistological analysis
    goats
    South Africa
    Oesophageal fistula
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    Citation
    Henley, S. R., Smith, D. G., & Raats, J. G. (2001). Evaluation of 3 techniques for determining diet composition. Journal of Range Management, 54(5), 582-588.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/643594
    DOI
    10.2307/4003588
    10.2458/azu_jrm_v54i5_henley
    Additional Links
    https://rangelands.org/
    Abstract
    A comparative study was made of 3 techniques applied to the study of herbivore diet selection, namely direct observation, faecal analysis and the recently developed remote control oesophageal fistula valve, using 3 animals over 4 study days. Direct observation showed a relatively high level of precision with respect to the woody forage class but a poor measurement of the grass class. The ratios of grass to dicot were similar in the diets determined by direct observation and valve fistulation, but faecal analysis over-emphasised dicots relative to the other techniques. The greatest overlap in estimated diet was between faecal analysis and valve fistulation. Overall the valve fistulation technique was considered superior to the other 2 techniques because it provided reliable estimates of diet composition that could be readily equated to range conditions at the time of ingestion.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4003588
    Scopus Count
    Collections
    Journal of Range Management, Volume 54, Number 5 (September 2001)

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