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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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    Prior grazing by sheep reduces waxy larkspur consumption by cattle: An observation

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    Author
    Ralphs, M. H.
    Olsen, J. D.
    Issue Date
    1992-03-01
    Keywords
    loss prevention
    Delphinium glaucescens
    biological control
    poisonous weeds
    weed control
    pastures
    sheep
    cattle
    Montana
    grazing
    
    Metadata
    Show full item record
    Citation
    Ralphs, M. H., & Olsen, J. D. (1992). Prior grazing by sheep reduces waxy larkspur consumption by cattle: An observation. Journal of Range Management, 45(2), 136-139.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644766
    DOI
    10.2307/4002770
    Additional Links
    https://rangelands.org/
    Abstract
    Sheep are more resistent to larkspur poisoning than cattle. Grazing larkspur with sheep before cattle turn-in may reduce the threat of cattle poisoning. Two 2.1-ha pastures were established in Upper Ruby Valley in southwest Montana in 1987 and 1989. A band of sheep grazed 1 pasture in mid-June in both years. Sheep grazed 70% of larkspur stalks in 1987 and 35% in 1988. Because sheep grazed little larkspur in 1988, larkspur was hand decapitated to simulate the use obtained in 1987 for the subsequent cattle grazing portion of the trial. Five cows were placed in each pasture immediately following sheep grazing in 1987 and after a 3-week delay in 1998. Cattle diets were quantified by bite counts. Waxy larkspur consumption by cattle in the sheep-grazed pasture was lower than in the cattle-only pasture especially during and after rainstorms in 1987 and throughout the study in 1988. One cow died from larkspur poisoning in the cattle-only pasture in 1988. If sheep will graze waxy larkspur, subsequent consumption by cattle can apparently be reduced on this site, thus reducing the risk of poisoning.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4002770
    Scopus Count
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    Journal of Range Management, Volume 45, Number 2 (March 1992)

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