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Autor: Varvikko, T.

Metabolizable energy (ME) and crude protein (CP) of the stall-fed resources met half of the requirements of crossbred cows in the Central Ethiopian highlands. The average supply of ME and CP from stall-feeding supported a milk yield of 850 kg or 55 percent of the lactation yield. The additional M...


Varvikko, T.[Nutrition constraint to improved smallholder milk production in the Ethiopian highlands: The Selale experience]Nutrition constraint to improved smallholder milk production in the Ethiopian highlands: The Selale experience

The question of whether the contentious situation at the Ngorongoro Conservation Area, Tanzania, engendered by human population growth, agricultural intensification and perceptions of proper and sustainable land use, is a prevalent problem on a broader continental scale is addressed.


Ellis, J.Reid, Robin S.Thornton, Philip K.Kruska, R.L.[Population growth and land-use change among pastoral people: Local processes and continental patterns. Poster]Population growth and land-use change among pastoral people: Local processes and continental patterns. Poster

Growing pearl millet and cowpea in combination with raising ruminant livestock is widely practiced in the Sahel. In this farming system, livestock feeding depends mostly on rangeland, fallows and cropland grazing. Nutritional constraints to grazing ruminants stem primarily from feed scarcity and ...


Fernández Rivera, S.Hiernaux, Pierre H.Y.Williams, Timothy O.Turner, M.Schlecht, E.Salla, A.Ayantunde, Augustine A.Sangare, M.[Nutritional constraints to grazing ruminants in the millet-cowpea- livestock farming system of the Sahel]Nutritional constraints to grazing ruminants in the millet-cowpea- livestock farming system of the Sahel

A survey was conducted on 224 randomly selected farmers, comprising those participating and non-participating in a goat corssbreeding project in Burundi, and 54 farmers chosen as `breeders' by the project. Participating farmers were similar to the average goat farmers in the region in terms of la...


Rey, B.Jacob, U.[Participation in the Ngozi goat crossbreeding project (Burundi) and associated changes in the farming systems]Participation in the Ngozi goat crossbreeding project (Burundi) and associated changes in the farming systems

Describes West African transhumant pastoralism, briefly analysing major characteristics of this mode of production, reviews differences in land tenure & farm size, livestock holdings, labour intensity, income & level of technical knowledge of African pastoral & cropping systems, and assesses appl...


Leeuw, P.N. de[Pastoral production systems and land utilisation types]Pastoral production systems and land utilisation types

A regional workshop was held in Ethiopia (Eastern Africa) to assess the status, future needs, and methodological issues of soil fertility research for bean cropping systems on the continent. Traditional forms of soil fertility maintenance, diagnosis of soil fertility constraints, nutrient require...


Wortmann, Charles S.[Workshop on Soil Fertility Research for Bean Cropping Systems in Africa (1988, Addis Ababa, Ethiopia). Proceedings]Workshop on Soil Fertility Research for Bean Cropping Systems in Africa (1988, Addis Ababa, Ethiopia). Proceedings
Botero Botero, RaúlSeré Rabé, CarlosUribe Urdinola, JRamos Rodríguez, HF[Experiencias en la difusión de pastos tropicales en suelos ácidos de ladera en minifundios del norte del Cauca, Colombia]Experiencias en la difusión de pastos tropicales en suelos ácidos de ladera en minifundios del norte del Cauca, Colombia

Discusses the rest period requirements and the role of stylosanthes in cereal cropping systems in the Nigerian subhumid zone. Presents results of two trials, viz, N application on maize grain yield after natural fallow, and changes in soil physical properties after diffrent land use.


Mohamed-Saleem, M.A.Adeoye, K.B.Kaufmann, Ralph R. von[Rest period requirements and role for Stylosanthes cereal cropping systems in the Nigerian subhumid zone]Rest period requirements and role for Stylosanthes cereal cropping systems in the Nigerian subhumid zone

This Report provides an overview of empirical methods that are frequently used for the analysis of spatial patterns of LUCC based on a survey of recent literature. Because these methods are relevant for wider analysis of system change beyond LUCC (Land Use and Land Cover Change), some examples of...


Lesschen, J.P.Verburg, P.H.Staal, Steven J.[Statistical methods for analysing the spatial dimension of changes in land use and farming systems]Statistical methods for analysing the spatial dimension of changes in land use and farming systems

Some evidence of encouraging changes in rural land and labour use systems that are indicative of evolving and perhaps sustainable agricultural production in Ethiopia is provided from a 1993 survey of 228 households in seven villages in the central Ethiopian highlands. Information is discussed tha...


Omiti, J.Ehui, Simeon K.Parton, K.Nokoe, S.[Some effects of institutional reform on mechanisms of land, labor and animal traction use in the Ethiopian highlands]Some effects of institutional reform on mechanisms of land, labor and animal traction use in the Ethiopian highlands

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