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    • Journal of Range Management, Volume 49 (1996)
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    Relationship of dietary browse to intake in captive muskoxen

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    Author
    Boyd, C. S.
    Collins, W. B.
    Urness, P. J.
    Issue Date
    1996-01-01
    Keywords
    Salix bebbiana
    activity sampling
    biting rates
    Alaska
    Ovibos moschatus
    fiber content
    voluntary intake
    transit time
    in vitro digestibility
    browsing
    grazing
    grasses
    feed intake
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    Citation
    Boyd, C. S., Collins, W. B., & Urness, P. J. (1996). Relationship of dietary browse to intake in captive muskoxen. Journal of Range Management, 49(1), 2-7.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644310
    DOI
    10.2307/4002717
    Additional Links
    https://rangelands.org/
    Abstract
    The effect of dietary browse (Salix bebbiana Sarg.) on intake and activity of muskoxen (Ovibos moschatus Zimmermann) pastured in south-central Alaska was compared to animals on grass pasture only. In previous work, intake increased in penned animals fed increasing browse: hay rations, which presumably allowed for increased weight gain and wool fiber (qiviut) growth. Eight mature steers were divided into 2 treatments: 8 hours daily ad libitum access to browse plus pasture grass (Bromus inermis Leyss., Poa pratensis L. mix) or pasture grass only. Animals were placed in adaptation enclosures 10 days before each trial. Bundles of browse were tied to perimeter fences. Trials were conducted 3 times during the 1992 growing season. For the trials, animals of like treatment were placed in each of four 0.33 ha trial enclosures for 8 hours, every other day, for 6 days (3 trial days). Activity budgets were calculated using scan sampling. Hand-harvested simulated bites were weighed to determine bite size, an bite rate was calculated using focal sampling techniques. Intake was calculated as a function of bite size, bite rate, and time spent foraging. Intake was greater (P = 0.064) for animals with access to browse. Digestive physiology of mukoxen may have favored higher intake of a mixed grass-browse diet over grass alone. Previous data suggest that elevated intake increases weight gain and qiviut growth.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4002717
    Scopus Count
    Collections
    Journal of Range Management, Volume 49, Number 1 (January 1996)

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