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The East African highlands face servere erosion problems, declining soil fertility and acute shortages of fodder and fuelwood. These problems are worsened by the region's rapid population growth, but may be reduced if leguminous trees are integrated into the farming systems. Adapted leucaena spec...


Otsyina, R.Hanson, JeanAkyeampong, E.[Leucaena in East Africa]Leucaena in East Africa

Results of two completed and one continuing feeding/growth trials are discussed. When fed Panicum maximum plus concentrates ad lib, West African Dwarf (WAD) bucks attain a growth rate of 60 gd-1 at a DDMI of 53.3g kg0.75d-1 , which is estimated to be approximately 1.8 times the DDMI needed for ma...


Ademosun, A.A.Bosman, H.G.Roessen, P.L.[Nutritional studies with West African Dwarf goats in the humid zone of Nigeria]Nutritional studies with West African Dwarf goats in the humid zone of Nigeria
Autor: Haque, I.

Crop livestock production systems in Africa are constrained by wide fluctuations in the quality and quantity of feed resources during the year and by the low availability of nutrients, especially nitrogen and phosphorus, in most soils, which threatens the sustainability of primary production. In ...


Haque, I.[Use of legume biological nitrogen fixation in crop/livestock production systems]Use of legume biological nitrogen fixation in crop/livestock production systems
Thomas, D.Andrade, Ronaldo P. deCouto, W.MOORE, C.P.Rocha, Carlos Magno Campos da[Pasture development in the tropical savanna region of Brazil]Pasture development in the tropical savanna region of Brazil
Melaku, S.[Supplementation of selected multipurpose trees to Ethiopian highland sheep maintained on a basal diet of teff straw (Eragrostis tef) : Effects on rumen fibre degradation, rumen and blood metabolites, live weight gain and reproduction parameters]Supplementation of selected multipurpose trees to Ethiopian highland sheep maintained on a basal diet of teff straw (Eragrostis tef) : Effects on rumen fibre degradation, rumen and blood metabolites, live weight gain and reproduction parameters
Autor: Sumberg, J.E.

Describes ILCA's research w. integrated alley farming, Gliricidia & Leucaena w. food crops, in southwest Nigeria, either w. a cut-and-carry browse feeding system for both sheep & goats or a grazed fallow system for sheep, outlining its biological & economic advantages and assessing its applicabil...


Sumberg, J.E.[Small ruminant feed production in a farming systems context]Small ruminant feed production in a farming systems context
Tiemann, Tassilo T.Franco, LHRamírez, G.Kreuzer, M.Lascano, Carlos E.Hess, HD[Influence of cultivation site and fertilisation on the properties of condensed tannins and in vitro ruminal nutrient degradation of Calliandra calothyrsus, Flemingia macrophylla and Leucaena leucocephala]Influence of cultivation site and fertilisation on the properties of condensed tannins and in vitro ruminal nutrient degradation of Calliandra calothyrsus, Flemingia macrophylla and Leucaena leucocephala

Between 1991 and 1995, 10 genera and 88 accessions of shrub species were evaluated in the Brazilian Cerrados. The total cumulative DM production of these species during the first year of growth ranged between 0.5 t/ha for Cratylia argentea CIAT 18516 and 2.5 t/ha for Mimosa sp. CNPAB 0040. Among ...


Pizarro, Esteban A.Carvalho, Marcelo AyresRamos, Allan Kardec Braga[Introducción y evaluación de leguminosas forrajeras arbustivas en el Cerrado brasileño]Introducción y evaluación de leguminosas forrajeras arbustivas en el Cerrado brasileño

Quantification of the movement of residue N through various biologically meaningful soil organic matter (SOM) fractions is essential in low-input tropical cropping systems for the development of management practices aimed at optimizing N-use efficiency. The flow of N derived from 15N-labeled leuc...


Vanlauwe, BernardSanginga, N.Merckx, R.[Soil organic matter dynamics after addition of nitrogen15 labeled leucaena and dactyladenia residues]Soil organic matter dynamics after addition of nitrogen15 labeled leucaena and dactyladenia residues

Nitrogen fixation by leguminous trees contributes nitrogen to agroforestry systems and enables farmers to grow their own nitrogen fertilizer. Estimation of the amount of nitrogen fixed is necessary to asses the value of leguminous trees. In the present paper, the difference method and the 15N iso...


Liya, S.M.Odu, C.T.I.Agboola, A.A.Mulongoy, K.[Estimation of N2 fixation by nitrogenfixing trees in the subhumid tropics using 15N dilution and difference methods]Estimation of N2 fixation by nitrogenfixing trees in the subhumid tropics using 15N dilution and difference methods

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