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    Role of plant defense in the utilization of native browse in southern Ethiopia

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    Authors
    Woodward, A.
    Coppock, D.L.
    Date
    1995
    Language
    en
    Type
    Journal Article
    Accessibility
    Limited Access
    Metadata
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    Citation
    Agroforestry Systems;32(2): 147-161
    Permanent link to cite or share this item: https://hdl.handle.net/10568/28146
    DOI: https://doi.org/10.1007/BF00711570
    Abstract/Description
    Browse is an important forage in pastoral systems, especially during dry seasons, because it is high in nitrogen and digestibility. However, browse palatability may be reduced by possible plant defenses such as tannins and physical attributes. Chemical and physical properties of 20 browse species were correlated with the feeding preference of camels, sheep and goats during wet and dry seasons in a densely wooded, semi-arid savanna. Preference was assessed by comparing relative use with abundance of browse species. Chemical components included nitrogen, available nitrogen, acid-detergent fibre, in vitro digestibility, total tannins, and condensed tannins. Physical defenses included thorns, hooks, spines, and leaf surface properties. Animal preference was negatively related to chemical and physical defense factors, positively related to N content, and unrelated to fibre and digestibility with results depending on animal species and season. Understanding the physical and chemical factors which influence browse selectivity aids in identifying promising forage resources.
    AGROVOC Keywords
    browse plants; pastoralism; borana; chemical composition; feeding behaviour; seasons; proanthocyanidin; acacia
    Subjects
    FEEDS; ANIMAL FEEDING; LIVESTOCK;
    Countries
    Ethiopia
    Regions
    Africa; Eastern Africa
    Collections
    • ILRI archive [4978]
    • ILRI articles in journals [5969]

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