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    • Journal of Range Management, Volume 40 (1987)
    • Journal of Range Management, Volume 40, Number 5 (September 1987)
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    Clearcutting Brazilian Semiarid Tropics: Observations on Its Effects on Small Ruminant Nutrition during the Dry Season

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    Author
    Kirmse, R. D.
    Provenza, F. D.
    Malechek, J. C.
    Issue Date
    1987-09-01
    Keywords
    forest litter
    tropics
    north east brazil
    clearcutting
    forests
    dry seasons
    animal nutrition
    semiarid zones
    sheep
    goats
    grazing
    forage
    feed intake
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    Citation
    Kirmse, R. D., Provenza, F. D., & Malechek, J. C. (1987). Clearcutting Brazilian semiarid tropics: observations on its effects on small ruminant nutrition during the dry season. Journal of Range Management, 40(5), 428-432.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/645147
    DOI
    10.2307/3899604
    Additional Links
    https://rangelands.org/
    Abstract
    Small ruminant production in northeast Brazil is limited by prolonged nutritional stress during the dry season. Our study assessed the effects of clearcutting woody vegetation on the nutrition of goats and sheep during the initial dry season following clearing. Dry matter intake g day-1 was higher for animals on cleared than on uncleared areas (818 vs. 627; P<0.05). Extrusa from esophageally fistulated animals grazing cleared, as opposed to uncleared, areas was more digestible (52 vs. 47%; P<0.05), was similar in crude protein (7.1 vs. 7.1%; P<0.05), and was lower in neutral detergent fiber (49 vs. 51%; P<0.05) and lignin (14 vs. 16%; P<0.05). Intake and diet quality declined on both cleared and uncleared areas as forage availability declined. Animals on cleared areas benefitted from increased availability of herbs and of biomass from palatable trees that coppiced and retained green leaves throughout much of the dry season. Animals on uncleared areas relied heavily on leaf litter from trees, which provided a poorer quality, but persistent, source of forage throughout the dry season.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/3899604
    Scopus Count
    Collections
    Journal of Range Management, Volume 40, Number 5 (September 1987)

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