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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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    Herbivore response to anti-quality factors in forages

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    Author
    Launchbaugh, K. L.
    Provenza, F. D.
    Pfister, J. A.
    Issue Date
    2001-07-01
    Keywords
    allelochemicals
    food intake
    detoxification
    animal husbandry
    energy content
    metabolism
    flavor
    toxicity
    nutrient content
    foraging
    nutrient availability
    tolerance
    adaptation
    animal behavior
    selective grazing
    herbivores
    nutritive value
    quality
    literature reviews
    grazing
    forage
    anti-quality
    conditioned aversions
    detoxification
    diet selection
    forage quality
    foraging
    grazing behavior
    toxic plants
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    Citation
    Launchbaugh, K. L., Provenza, F. D., & Pfister, J. A. (2001). Herbivore response to anti-quality factors in forages. Journal of Range Management, 54(4), 431-440.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/643891
    DOI
    10.2307/4003114
    10.2458/azu_jrm_v54i4_launchbaugh
    Additional Links
    https://rangelands.org/
    Abstract
    Plants possess a wide variety of compounds and growth forms that are termed "anti-quality" factors because they reduce forage value and deter grazing. Anti-quality attributes can reduce a plant's digestible nutrients and energy or yield toxic effects. Herbivores possess several adaptive mechanisms to lessen the impacts of anti-quality factors. First, herbivores graze selectively to limit consumption of potentially harmful plant compounds. Grazing animals rely on a sophisticated system to detect plant nutritional value or toxicity by relating the flavor of a plant to its positive or negative digestive consequences. Diet selection skills are enhanced by adaptive intake patterns that limit the deleterious effects of plant allelochemicals; these include cautious sampling of sample new foods, consuming a varied diet, and eating plants in a cyclic, intermittent, or carefully regulated fashion. Second, grazing animals possess internal systems that detoxify or tolerate ingested phytotoxins. Animals may eject toxic plant material quickly after ingestion, secrete substances in the mouth or gut to render allelochemicals inert, rely on rumen microbes to detoxify allelochemicals, absorb phytochemicals from the gut and detoxified them in body tissues, or develop a tolerance to the toxic effects of plant allelochemicals. Understanding the behavioral and metabolic abilities of herbivores suggests several livestock management practices to help animals contend with plant anti-quality characteristics. These practices include offering animals proper early life experiences, selecting the appropriate livestock species and individuals, breeding animals with desired attributes, and offering nutritional or pharmaceutical products to aid in digestion and detoxification.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4003114
    Scopus Count
    Collections
    Journal of Range Management, Volume 54, Number 4 (July 2001)

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