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Two levels of CM substitution (25 and 50 percent) for industrial concentrate were studied; 3 treatments (with broiler chicks randomly assigned to blocks) during fattening were compared with a check treatment (100 percent industrial concentrate). Slaughter wt. over 1.5 kg/animal were obtained, wit...
Agriculture is the mainstay of the country and also the major source of employment and income. About 85 percent of the population live in the rural areas and are primarily engaged in agriculture and related activities. Among the other agricultural sector, livestock production contributes about 30...
This paper reviews the historical development of the use of the eucalypt over 200 years, from its curiosity status in the botanical gardens of Europe to its extensive use as a fuelwood for the wood-burning locomotives of the national railway systems, and then to its more recent use as a major sou...
Analysis of the fuelwood situation has been hampered by lack of reliable information, and has been the subject of considerable debate. The present paper assesses the implications of recent information on the subject. New data and recent more accurate projections show that increasing urbanisation ...
Responding to the decline of game, fruit and fiber, post-logging, communities along the Capim River in Pará, Brazil, requested that research be initiated into the value of non-timber forest products. As a first step, an ethnobotanical inventory of one hectare of mature terra firme forest was cond...
Isolates of Sphaceloma and Elsinoë spp. were collected from Euphorbia brasiliensis, Eu. heterophylla, Eu. pulcherrima, Jatropha aconitifolia var. papaya, Manihot carthaginensis, and M. esculenta in Mexico, Costa Rica, the Dominican Republic, and Colombia. M. carthaginensis and J. aconitifolia var...
Effective management of plant health is fundamental for food and income security to meet the growing demands of local and global markets. This however requires farmers’ adequate access to quality planting materials under the prevailing contextual and psycho-social factors. This study, anchored in...
The domestication process of Brassica oleracea L. has not been fully clarified, either regarding its initial location or the progenitor species involved. Two alternative hypotheses proposed so far point to either a northwest European or a Mediterranean location. Previous studies to clarify the do...
Cassava is the 4th most important source of food energy in the tropics. More than 2/3 of the total production of this crop is used as food for humans, with lesser amounts being used for animal feed and industrial purposes. The ingestion of high levels of cassava has been associated with chronic c...
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