Forage quality of shrub legumes evaluated in acid soils

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dc.creatorLascano Aguilar, Carlos Eduardo
dc.creatorMaass, Brigitte L.
dc.creatorKeller-Grein, Gerhard
dc.date1994
dc.date2016-01-18T13:33:44Z
dc.date2016-01-18T13:33:44Z
dc.date.accessioned2026-06-27T14:28:13Z
dc.descriptionThe forage quality of shrub legume species planted in acid soils of the llanos and forest margins of Colombia was evaluated by the Tropical Forages Program (TFP) of CIAT. Results showed differences in quality among and within species. Species free of tannins such as Cratylia argentea and Desmodium velutinum had medium in vitro dry matter digestibility (IVDMD) and high crude protein (CP). In contrast, species with tannins such as Flemingia macrophylla, Tadehagi spp., Dendrolobium spp. and Codariocalyx gyroides had adequate CP but low IVDMD. In these legumes, IVDMD of different accessions within species was negatively correlated with level of extractable condensed tannins (ECT). However, only 20 to 30 percent and 40 to 70 percent of the variation in IVDMD could be explained by level of ECT in the wet and dry seasons, respectively. The capacity of ECT to complex protein was variable among shrub legumes, and was related to degree of polymerization of CT. Extractable CT and protein-bound CT were negatively correlated (r=-0.5) with IVDMD, but no relationship was found between fiber-hound CT and IVDMD. Of the species evaluated, C. argentea and D. velutinum have high potential as fodder for livestock. Other species evaluated appear to have low feeding value due to the presence of CT and not well defined phenols and cell wall constituents which could also affect digestibility. Future studies should investigate factors responsible for low digestibility of some nitrogen fixing shrub legumes and determine the effects of level, structure and form of condensed tannins on ruminant nutrition.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/69841
dc.identifier.urihttp://hdl.handle.net/123456789/79127
dc.languageen
dc.publisherInternational Center for Tropical Agriculture
dc.rightsOpen Access
dc.sourceLascano, Carlos E; Maass, Brigitte L; Keller-Grein, Gerhard. 1994. Forage quality of shrub legumes evaluated in acid soils. Centro Internacional de Agricultura Tropical (CIAT), Cali, CO. 27 p.
dc.subjectfeed legumes
dc.subjectshrubs
dc.subjectnutritive value
dc.subjecttannins
dc.subjectprotein content
dc.subjectdigestibility
dc.subjectacid soils
dc.subjectleguminosas forrajeras
dc.subjectarbustos
dc.subjectvalor nutritivo
dc.subjecttaninos
dc.subjectcontenido proteico
dc.subjectdigestibilidad
dc.subjectsuelo ácido
dc.titleForage quality of shrub legumes evaluated in acid soils
dc.typeConference Paper

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