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    • Rangeland Ecology & Management, Volume 66 (2013)
    • Rangeland Ecology & Management, Volume 66, Number 1 (January 2013)
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    Recovery and Viability of Sulfur Cinquefoil Seeds From the Feces of Sheep and Goats

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    Author
    Frost, Rachel A.
    Mosley, Jeffrey C.
    Roeder, Brent L.
    Issue Date
    2013-01-01
    Keywords
    endozoochory
    Potentilla recta
    prescribed grazing
    targeted grazing
    weed seeds
    
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    Show full item record
    Citation
    Frost, R. A., Mosley, J. C., & Roeder, B. L. (2013). Recovery and viability of sulfur cinquefoil seeds from the feces of sheep and goats. Rangeland Ecology & Management, 66(1), 51-55.
    Publisher
    Society for Range Management
    Journal
    Rangeland Ecology & Management
    URI
    http://hdl.handle.net/10150/642686
    DOI
    10.2111/REM-D-11-00218.1
    Additional Links
    https://rangelands.org/
    Abstract
    Targeted grazing by sheep or goats is a potentially useful tool for suppressing the noxious weed sulfur cinquefoil (Potentilla recta L.). However, possible transmission of weed seeds by grazing livestock is a serious ecological concern that must be addressed in any targeted grazing prescription. We investigated the effect of sheep and goat digestion on the viability of sulfur cinquefoil seeds collected from live plants growing on a foothill rangeland site in southwestern Montana. Eight sheep and eight goats (all wethers) were each gavaged with 5 000 sulfur cinquefoil seeds. Four animals of each species received immature seeds, and four animals received mature seeds. All animals were fed ground grass hay in excess daily, and intake averaged 2.0% body weight d-1. Total fecal collection began immediately after gavaging and continued for 7 consecutive days. Once each day, all identifiable sulfur cinquefoil seeds were recovered and counted from fecal subsamples. Seed viability before gavaging averaged 36% for immature seeds and 76% for mature seeds. Sheep and goats excreted similar numbers of viable seeds. Almost all (98%) of the viable seeds recovered from sheep and goats were excreted during Day 1 and Day 2 after gavaging. No viable seeds were recovered from either sheep or goats after Day 3. Our estimates of sulfur cinquefoil seed excretion and viability in sheep and goat feces are likely inflated compared with targeted grazing animals because gavaging with seeds bypassed mastication. Grazing livestock that consume sulfur cinquefoil seeds should be kept in a corral for at least 3 d to prevent transferring viable seeds to uninfested areas.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2111/REM-D-11-00218.1
    Scopus Count
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    Rangeland Ecology & Management, Volume 66, Number 1 (January 2013)

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