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Tannins limit the use of fodder trees as feed for ruminants. Removal of the effects of tannins would thus improve the nutritional quality of these trees. This prompted the study to evaluate the effect of rumen or faecal mixed cultures from different animals on tannin degradation. Tannin extracts,...


Ephraim, E.Odenyo, A.A.Ashenafi, M.[Screening for tannin degradation by rumen and faecal samples of wild and domestic animals in Ethiopia]Screening for tannin degradation by rumen and faecal samples of wild and domestic animals in Ethiopia

Santos Meléndez, Luis Guillermo[Sequential sampling for seed viability testing at CIAT's genebank]Sequential sampling for seed viability testing at CIAT's genebank

The relationship between succession and tropical forest diversity has been much debated. A fundamental disagreement hinges on whether high local species richness is a transient successional property, albeit one that can be maintained by disturbance, or is rather a property of stable late successi...


Sheil, Douglas[Long-term observations of rain forest succession, tree diversity and responses to disturbance]Long-term observations of rain forest succession, tree diversity and responses to disturbance

The maximum likelihood parameters estimated in logistic analysis are in terms of a transformation of the original response variable and, although inferences are easily made about the sources of variation in the linearized model using standard procedures applied in regression analysis, the varianc...


Rege, J.E.O.Sherington, J.[A method for estimating sampling variances of predicted probabilities from maximum likelihood estimates in logit response function]A method for estimating sampling variances of predicted probabilities from maximum likelihood estimates in logit response function

Presents a study conducted in five different sites, Debre Berhan, Dejen, Deneba, Tulu Meko and Wereilu in the highlands of Ethiopia, from June 1988 to December 1989, to determine the prevalences of endoparasites of the highland sheep in Ethiopia. Analyses data to determine nematode log egg counts...


Bekele, T.Kasali, O.B.Wolde-Mariam, W.A.[Endoparasite prevalences of the highland sheep in Ethiopia]Endoparasite prevalences of the highland sheep in Ethiopia

Four proximal soil sensors were tested at four smallholder farms in Embu County, Kenya: a portable X-ray fluorescence sensor (PXRF), a mobile phone application for soil color determination by photography, a dual-depth electromagnetic induction (EMI) sensor, and a LED-based soil optical reflectanc...


Piikki, KristinSöderström, MatsEriksson, JanMuturi, John JamleckMuthee, Patrick IreriWetterlind, JohannaLund, Eric[Performance evaluation of proximal sensors for soil assessment in smallholder farms in Embu County, Kenya]Performance evaluation of proximal sensors for soil assessment in smallholder farms in Embu County, Kenya
Cardona Mejía, CésarRodríguez Torres, Isaura VivianaBueno Mondragon, J.M.Tapia, X[Manejo de la mosca blanca o palomilla en los cultivos de frejol y vainita]Manejo de la mosca blanca o palomilla en los cultivos de frejol y vainita
Cardona Mejía, CésarRodríguez Torres, Isaura VivianaBueno Mondragon, J.M.[Manejo de la mosca blanca o palomilla en los cultivos de habichuela y frijol]Manejo de la mosca blanca o palomilla en los cultivos de habichuela y frijol

Presents workshop papers & discussion summaries on the development of low-level aerial survey techniques and presents applications to livestock, wildlife and land-use surveys. Reviews survey designs and sampling procedures as well as problems of bias, levels, from ground survey to satellite image...


Grimsdell, J.J.R.Westley, S.[Low-level aerial survey techniques]Low-level aerial survey techniques

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