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    Edible forage production, chemical composition, rumen degradation and gas production characteristics of Calliandra calothyrsus (Messin) provenances in the humid tropics of West Africa

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    Authors
    Larbi, Asamoah
    Duguma, B.
    Smith, Jimmy W.
    Mollet, M.
    Akinlade, A.
    Date Issued
    1998
    Language
    en
    Type
    Journal Article
    Accessibility
    Limited Access
    Metadata
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    Citation
    Agroforestry Systems;39(3): 275-290
    Permanent link to cite or share this item: https://hdl.handle.net/10568/30031
    DOI: https://doi.org/10.1023/A:1005934629426
    Abstract/Description
    Two experiments evaluated variations in feed value among Calliandra calothyrsus provenances. In Experiment 1, edible forage production of four provenances were evaluated at Ibadan, southwestern Nigeria over a 2-year period in three seasons: main-wet (April-August), minor-wet (September-November) and dry (December-March). Forage samples from the main-wet and dry seasons were incubated for 6, 12, 48, 72 and 96 h in rumen-fistulated steers to estimate in sacco dry matter (DM) and nitrogen (N) degradation characteristics. In vitro gas production was estimated over 3, 6, 12, 24, 48, 72 and 96 h of incubation. In Experiment 2, DM degradation characteristics of 14 provenances of C. calothyrsus planted on an acid soil in Yaounde, Cameroon, were evaluated. Data were subjected to cluster analysis for grouping, and the 14 provenances were placed into four distinct cluster groups. Based on the potential extent of DM and, N degradation and gas production characteristics in Experiment 1, the four provenances of C. calothyrsus were classified into three forage quality groups: high (ILCA 16310), medium (ILCA 14891, ILCA 15166) and low (NFTA 896). In Experiment 2, using the extent of DM degradation as a forage quality index, C. calothyrsus provenances in cluster 3 and 4 (namely: 51/92, 11/91. 13/91, 45/92, 10/91, 15/91, 18/91, 134/91, 12/91, 62/92), were relatively higher in quality than their counterparts in clusters 1 and 2. The results suggested the existence of intra-species variation among the provenances, and confirmed earlier observations that forage quality of C. calothyrsus could be improved through provenance evaluation.
    AGROVOC Keywords
    humidtropics; calliandra calothyrsus; feed production; chemical composition; rumen; degradation; yields; quality; seasonal variation
    Subjects
    FEEDS; LIVESTOCK;
    Regions
    Africa; Western Africa
    Collections
    • ILRI archive [4978]
    • ILRI articles in journals [6574]

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