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    • Journal of Range Management, Volume 54 (2001)
    • Journal of Range Management, Volume 54, Number 4 (July 2001)
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    Anti-quality components in forage: Overview, significance, and economic impact

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    Author
    Allen, V. G.
    Segarra, E.
    Issue Date
    2001-07-01
    Keywords
    plant diseases and disorders
    immune response
    morbidity
    animal health
    sexual reproduction
    antinutritional factors
    Festuca arundinacea
    nutritional status
    toxicity
    mineral content
    economic analysis
    liveweight gain
    mortality
    adaptation
    animal behavior
    secondary metabolites
    digestibility
    insect pests
    nutritive value
    literature reviews
    livestock
    forage
    feed intake
    chemical constituents of plants
    nutrition
    animal health
    performance
    forage quality
    toxins
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    Citation
    Allen, V. G., & Segarra, E. (2001). Anti-quality components in forage: overview, significance, and economic impact. Journal of Range Management, 54(4), 409-412.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/643888
    DOI
    10.2307/4003111
    10.2458/azu_jrm_v54i4_allen
    Additional Links
    https://rangelands.org/
    Abstract
    Although recognized in importance from the dawn of history, forages have too often been underestimated and undervalued perhaps in part because animal performance has frequently failed to reflect apparent forage quality. Anti-quality components, diverse impediments to quality, have evolved as structural components and as secondary metabolites. They include mineral imbalances or can be related to the presence of insects and diseases. Animal behavior and adaptation are increasingly recognized as important aspects of anti-quality factors. An anti-quality component may reduce dry matter intake, dry matter digestibility, or result in nutritional imbalances in animals. They can act as a direct poison compromising vital systems, result in abnormal reproduction, endocrine function, and genetic aberrations, trigger undesirable behavior responses, or suppress immune function leading to increased morbidity and mortality. The economic impact of anti-quality factors on individual herds can be devastating but definable. Broadscale economic impacts of anti-quality factors are far more difficult to estimate. A loss of 0.22 kg/day in potential gain of stocker cattle due to anti-quality factors during a 166-day grazing season translates into a loss of about 55/steer at 1.45/kg or over 2 billion annually when applied to the U.S stocker cattle. Economic losses to tall fescue (Festuca arundinacea Schreb.) toxicosis in the U.S. beef industry are probably underestimated at 600 million annually. Reproductive and death losses of livestock due to poisonous plants have been estimated at 340 million in the 17 western states alone. These examples of economic losses due to anti-quality factors may be upper bounds of actual losses but even if a small proportion of the expected losses were eliminated through research, the potential payoff would be extremely high.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4003111
    Scopus Count
    Collections
    Journal of Range Management, Volume 54, Number 4 (July 2001)

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