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    • Journal of Range Management, Volume 45 (1992)
    • Journal of Range Management, Volume 45, Number 2 (March 1992)
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    Evaluation of microhistological analysis for determining ruminant diet botanical composition

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    Author
    Alipayo, D.
    Valdez, R.
    Holechek, J. L.
    Cardenas, M.
    Issue Date
    1992-03-01
    Keywords
    feces analysis
    assessment
    feces composition
    shrubs
    diets
    sheep
    goats
    cattle
    botanical composition
    grasses
    New Mexico
    forage
    feeding preferences
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    Citation
    Alipayo, D., Valdez, R., Holechek, J. L., & Cardenas, M. (1992). Evaluation of microhistological analysis for determining ruminant diet botanical composition. Journal of Range Management, 45(2), 148-152.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644708
    DOI
    10.2307/4002773
    Additional Links
    https://rangelands.org/
    Abstract
    The accuracy of microhistological techniques for analysis of herbivore diets was evaluated with cattle, sheep, and Angora goats fed grass, forb, and shrub mixtures of known botanical compositions. Two observers performed microhistological analyses on undigested diets as offered and on feces collected. Similarity indices and chi-square tests were used to determine if differences existed among actual diets, estimated diets, and fecal samples. Botanical compositions of diets fed to all 3 animal species generally were accurately estimated by fecal analyses. In some other studies, shrubs in ruminant diets have been inaccurately estimated by the microhistological technique. However, in our study, shrubs were accurately estimated with no differences between actual and observed compositions. We attribute this to the fact that shrub materials used in our study had a high proportion of current growth relative to woody materials. Woody plant parts had lower proportions of identifiable epidermal material than leaves and young stems. In grass-forb diets, forbs sometimes were overestimated and differentiation among grasses was difficult. However, in most cases, observers could precisely estimate diets of the 3 herbivore species.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4002773
    Scopus Count
    Collections
    Journal of Range Management, Volume 45, Number 2 (March 1992)

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