References of "Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE]"
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See detailPreliminary description of the diet of Hippopotamus amphibius L. in Loango National Park (Gabon)
Michez, Adrien ULg; Doucet, Jean-Louis ULg; Dendocker, Nicolas et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(4), 580-583

Due to the paucity of suitable habitat, hippos are very rare in the Congo Bassin. Compared to East-African populations, Central African populations of hippos have been less studied. Information found in ... [more ▼]

Due to the paucity of suitable habitat, hippos are very rare in the Congo Bassin. Compared to East-African populations, Central African populations of hippos have been less studied. Information found in the literature regarding the animal’s basic ecology is limited. This study focuses on the description of the diet of an isolated hippo population in Loango National Park (Gabon), comparing faecal analysis with a reference collection ofherbaceous species from the savannas. The effectiveness of using faecal analysis versus using the floristic description of hippos’ pastures was demonstrated. The most frequent herbaceous species identified in faeces samples were Paspalum vaginatum, Axonopus compressus, Stenotaphrum secundatum (Poaceae) and Desmodium triflorum (Fabaceae). The voluntary consumption of a dicotyledonous species (Desmodium triflorum) is novel for this species. [less ▲]

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See detailSoil model systems used to assess fouling, soil adherence and surface cleanability in the laboratory: a review
Toure, Yetioman ULg; Mabon, Nicolas; Sindic, Marianne ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(3), 527-539

Surface fouling is a chronic problem in processing industries. The hygienic state of surfaces is thus a critical parameter with respect to the performance of the production process and to the final ... [more ▼]

Surface fouling is a chronic problem in processing industries. The hygienic state of surfaces is thus a critical parameter with respect to the performance of the production process and to the final quality of the product. For this reason, cleaning and disinfection are essential. The most important first step in implementing a fouling mitigation strategy through cleaning and disinfection is to understand the mechanisms of fouling. This allows ways to be found to reduce, even to eliminate fouling, or to improve the effectiveness of cleaning and disinfection. This paper reviews the relevant literature and summarizes a selection of soil model systems used to aid such improvements. Organic, mineral, microbial, particulate, and composite soil model systems are presented. These soil model systems are of particular relevance in the study of fouling, cleaning or soil adhesion onto solid surfaces in the laboratory environment. The key features of the models, as well as their practical advantages and disadvantages, are described and discussed. [less ▲]

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See detailAnalyse de l'évolution de la consommation de plats préparés en Belgique
Winandy, Stéphane ULg; De Fays, Maud; Lebailly, Philippe ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(4), 593-603

This study aims to analyze the evolution of the consumption of ready-made food in Belgium and to discern any trends. The data used are expenditure made on convenience food from 1999 and 2009 (in euros ... [more ▼]

This study aims to analyze the evolution of the consumption of ready-made food in Belgium and to discern any trends. The data used are expenditure made on convenience food from 1999 and 2009 (in euros) and socio-demographic characteristics, obtained from the Household Budget Survey undertaken annually by the Federal Public Service Economy (DGSIE). Statistical analyses (simple, multiple and binary logistic regressions) enable the study of consumption trends in terms of exependiture and percentage of consumers as well as the determination of consumer profiles. Convenience food is part of the eating habits of Belgian households, with more than nine out of ten households being consumers. Convenience food prepared from meat is the most frequently purchased. For all ready-made food, the variable of household size explains the most variability in consumption, followed by the variables of income and age. [less ▲]

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See detailContribution to the study of the resistance to drying of Pseudomonas fluorescens
Mputu Kanyinda, Jean-Noël ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013)

The objective of this thesis is to study the resistance to drying of Pseudomonas fluorescens. Freeze-drying is the most suitable method for drying P. fluorescens. However, freeze-drying induced loss of ... [more ▼]

The objective of this thesis is to study the resistance to drying of Pseudomonas fluorescens. Freeze-drying is the most suitable method for drying P. fluorescens. However, freeze-drying induced loss of cell viability. This loss of viability is mainly due to membrane rupture, temperature and oxidation of fatty acids, membrane proteins and glutathione. For this purpose, the use of protective compounds during freeze-drying has allowed us to obtain a powder having a high viability. We then studied the impact of these protective compounds, oxygen and storage temperature on the viability of P. fluorescens during storage. Analyses of fatty acids, proteins, glutathione and the study of membrane integrity during the various manufacturing processes and storage have established a link between the degree of oxidation and cell death. The results of flow cytometry showed that the freeze-drying longer affects the viability of P. fluorescens rather than storage. We have increased the yield of the production in bioreactor of P. fluorescens and time of culture was halved. [less ▲]

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See detailImpacts of logging and hunting on western lowland gorilla (Gorilla gorilla gorilla) populations and consequences for forest regeneration. A review
Haurez, Barbara ULg; Petre, Charles-Albert ULg; Doucet, Jean-Louis ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(2), 364-372

Timber exploitation is rapidly expanding throughout the Congo Basin. Forest areas assigned to timber harvesting have sharply expanded over the decades and logging concessions now largely overlap with the ... [more ▼]

Timber exploitation is rapidly expanding throughout the Congo Basin. Forest areas assigned to timber harvesting have sharply expanded over the decades and logging concessions now largely overlap with the range of western lowland gorilla (Gorilla gorilla gorilla Savage & Wyman, 1847). However this species, which is considered as critically endangered by IUCN, could play an essential role in maintaining the structure and composition of tropical rainforest notably through seed dispersal services. This is likely due to its frugivorous diet, high stomach capacity and ability to swallow seeds of variable sizes. Moreover gorillas have a long gut retention time of ingested food, travel long daily distances and deposit most ingested seeds in suitable habitats for plant development (such as logging gaps). Consequently, the preservation of the role of gorilla in forest regeneration is essential in the context of logged forest ecosystems. Timber harvesting has two major opposing impacts on gorilla populations: on the one hand, gorillas benefit from growth of herbaceous vegetation (e.g. Marantaceae and Zingiberaceae) following forest canopy opening, as such herbs provide both staple food and nest-building materials; on the other hand, gorilla populations suffer with the rise in hunting associated with logging activity, especially with road network installation. Considering the potential negative knock-on effects of logging concessions on the ecological function of western lowland gorilla, the implementation of timber harvesting methods that preserve gorilla populations is a considerable challenge for forest sustainability, as well as for gorilla’s conservation. [less ▲]

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See detailContrôle de l'azote potentiellement lessivable dans le sol en début de période de lixiviation. Etablissement des valeurs de référence
Vandenberghe, Christophe ULg; De Toffoli, Marc; Bachelart, Florent ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17

Based on observations in the field, for ten years, Gembloux Agro-Bio Tech (ULg) and the Catholic University of Louvain set annual benchmarks for nitrate-nitrogen concentrations in the soil at the ... [more ▼]

Based on observations in the field, for ten years, Gembloux Agro-Bio Tech (ULg) and the Catholic University of Louvain set annual benchmarks for nitrate-nitrogen concentrations in the soil at the beginning of the leaching period (referred to as ‘PLN’ - Potentially Leachable Nitrogen). These values are used as a reference to monitor farmers located in vulnerable zones, with the monitoring being carried out by the Public Service of Wallonia. Soil samples were taken twice a year (October and December) from approximately 250 plots subjected to reasoned nitrogen fertilization. The plots were located within 34 reference farms (constituting the Agricultural Survey Areas). The samples were then analyzed for nitrate-nitrogen content. The results allowed to establish reference values for eight classes of cultivation or meadow. Analysis of the results recorded in 2011, as in previous years, illustrates the importance of “crop” and “year” in establishing reference values. [less ▲]

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See detailSuivi de la lixiviation du nitrate en plein champ par la technique lysimétrique : retour de huit années d'expérience
Deneufbourg, Mathieu ULg; Vandenberghe, Christophe ULg; Heens et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(S1), 177-186

Since 2003, nitrate leaching has been monitored in six plots located in a loamy area (Hesbaye, Belgium), mainly dedicated to wheat, sugarbeet and vegetable crops. Open-field lysimeters have been used in ... [more ▼]

Since 2003, nitrate leaching has been monitored in six plots located in a loamy area (Hesbaye, Belgium), mainly dedicated to wheat, sugarbeet and vegetable crops. Open-field lysimeters have been used in order not to impede agricultural operations. Lysimeters are used as follow-up tools to quantify the amounts of nitrate leaching below the root zone. This study aims to evaluate the suitability of PLN (Potentially Leachable Nitrogen – APL in French) defined in the Sustainable Nitrogen Management Program (PGDA in French) as an environmental indicator by relating nitrogen management practices (including fertilization recommendations) to PLN values and groundwater quality. This study demonstrates that lysimeters are efficient in collecting representative amounts of leaching water. Lysimeters show that PLN is identified as being related to the nitrate content in leaching water, which will not be taken up by the next crop. The amount of nitrate leaching below the root zone demonstrates the necessity and the relevance of the organic nitrogen spreading limits defined in the Sustainable Nitrogen Management Program. The lysimeter tool also shows that respect for leaching water quality standards under agricultural plots needs to be considered from an integrated and generalized approach, taking into account complete crop sequences and rotations, including rational fertilization rates and the introduction of catch crops in rotation. Some suitable or unsuitable crop sequences with regard to good groundwater quality are listed. [less ▲]

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See detailGestion durable de l'azote au-delà de la seule problématique "nitrate"
Bodson, Bernard ULg; Vandenberghe, Christophe ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17s1

The aim of the sustainable management of nitrogen is to reduce dramatically the risk of nitrogen leaching into groundwater. Regulations and recommendations have resulted in a more judicious use of manure ... [more ▼]

The aim of the sustainable management of nitrogen is to reduce dramatically the risk of nitrogen leaching into groundwater. Regulations and recommendations have resulted in a more judicious use of manure as a mineral fertilizer to benefit both the environment and farmers. Rehabilitating leguminous plants into our rotations and our forage areas needs to become a priority. These plants can partially substitute for imported soya and, at the same time, synthesize the free nitrogen available to plants. Management of intercropping and in particular of catch crops can no longer be limited to the single issue of nitrate in water. Integrated crop protection and risk reduction of greenhouse gas emissions also need to be taken into account and flexibility needs to be incorporated into the implementation of these intercropping rules. [less ▲]

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See detailKivuguto traditional fermented milk and the dairy industry in Rwanda. A review
Karenzi, Eugène ULg; Mashaku, Albert; Nshimiyimana, Alphonse M. et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(2), 383-391

Traditional methods of fermenting milk involve the use of indigenous microorganisms, leading to the production of a variety of tastes in fermented milk products. Kivuguto is a fermented milk product ... [more ▼]

Traditional methods of fermenting milk involve the use of indigenous microorganisms, leading to the production of a variety of tastes in fermented milk products. Kivuguto is a fermented milk product, which is popular in Rwanda. Kivuguto is produced by traditional spontaneous acidification of raw milk by a microflora present both on utensils and containers used for milk preservation and in the near environment of cattle. Thus, this method does not allow the shelf stability of the product. Faced to such a situation, modern dairies now produce fermented milk and other dairy products using exotic strains. The main objectives of this paper are firstly, to provide documentation on the traditional production of kivuguto, as well as its by-products, and secondly, to describe the current situation of the dairy industry in Rwanda. [less ▲]

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See detailDifferent methods for spatial interpolation of rainfall data for operational hydrology and hydrological modeling at watershed scale: a review
Ly, Sarann ULg; Charles, Catherine ULg; Degré, Aurore ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(2), 392-406

Watershed management and hydrological modeling require data related to the very important matter of precipitation, often measured using raingages or weather stations. Hydrological models often require a ... [more ▼]

Watershed management and hydrological modeling require data related to the very important matter of precipitation, often measured using raingages or weather stations. Hydrological models often require a preliminary spatial interpolation as part of the modeling process. The success of spatial interpolation varies according to the type of model chosen, its mode of geographical management and the resolution used. The quality of a result is determined by the quality of the continuous spatial rainfall which ensues from the interpolation method used. The objective of this article is to review the existing methods for interpolation of rainfall data that are usually required in hydrological modeling. We review the basis for the application of certain common methods and geostatistical approaches used in interpolation of rainfall. Previous studies have highlighted the need for new research to investigate ways of improving the quality of rainfall data and ultimately, the quality of hydrological modeling. [less ▲]

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See detailBacteriological assessment of smoked game meat in Lubumbashi, D.R.C.
Kabwang a Mpalang, Rosette; Kakubu a Mpalang, Mireille; Mukeng Kaut, Clarence et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17

The bacteriological quality of smoked game meat in Lubumbashi has not been studied much to date. The present study focused on the analysis of 182 samples of smoked game meat from three species, Syncerus ... [more ▼]

The bacteriological quality of smoked game meat in Lubumbashi has not been studied much to date. The present study focused on the analysis of 182 samples of smoked game meat from three species, Syncerus caffer (n = 63), Phacochoerus aethiopicus (n = 60) and Sylvicapra grimmia (n = 59), sold at retail outlets in Lubumbashi. The isolation of Escherichia coli from 81.3% of samples (mean 4.87 ± 0.6 log10 CFU.g-1 of sample) confirms significant faecal contamination of smoked game meat. The study has determined by culture prevalences of 0.0%, 4.3% [CI95% 1.4-7.4], 3.8% [CI95% 1.1-6.6] and 14.2% [CI95% 9.2-19.4] respectively for Shiga toxigenic Escherichia coli (STEC), Salmonella spp., Campylobacter jejuni and Campylobacter coli. Using Polymerase Chain Reaction, these prevalences were of 2.2% [IC95% 0.1-4.3], 6.0% [IC95% 2.6-9.5], 3.8% [IC95% 1.1-6.6] and 15.9% [IC95% 10.6-21.3] respectively for STEC, Salmonella spp., C. jejuni and C. coli. Syncerus caffer was established as a potential vehicle of STEC carrying stx1 gene (3.2%), stx2 gene (1.6%) and the combination of stx2 and eae genes (1.6%). On the basis of these data, we suggested the need for developing monitoring plans of the production, preparation, handling and distribution of smoked game meat in Lubumbashi. [less ▲]

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See detailEvaluation of the third Action Programme. Recommendations for regulatory and scientific research
Vandenberghe, Christophe ULg; Destain, Jean-Pierre ULg; Beckers, Yves ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(SPL1), 301-306

In accordance with the Nitrates Directive, the third "Durable Nitrogen Management Plan" (PGDA) will be soon reviewed in Wallonia (Belgium). The second "Nitrate - Water" workshop took place between 28th ... [more ▼]

In accordance with the Nitrates Directive, the third "Durable Nitrogen Management Plan" (PGDA) will be soon reviewed in Wallonia (Belgium). The second "Nitrate - Water" workshop took place between 28th May and 1st June 2012. The workshop was attended by both Belgian scientists (Université catholique de Louvain - UCL, Walloon Agricultural Research Center CRA-W, Université de Liège - ULg, Gembloux Agro-Bio Tech) and French scientists (National Institute for Agricultural Research - INRA). In the light of the results of experiments presented by scientists at this workshop, modifications to the PGDA are now recommended. These concern organic and mineral nitrogen fertilization for crops and meadows; catch crops; soil nitrate-nitrogen residue limitation in autumn, at the start of the nitrate leaching period; the management of meadow ploughing and a modification of the dairy cow standard for nitrogen production. [less ▲]

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See detailMunkoyo : des racines comme sources potentielles en enzymes amylolytiques et une boisson fermentée traditionnelle (synthèse bibliographique)
Foma, Roland Kibwega; Destain, Jacqueline ULg; Kayisu, Kalenga et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(2), 352-363

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See detailVers une intégration du sorgho comme matière première pour la brasserie moderne (synthèse bibliographique)
Bwanganga Tawaba, J.-C.; Ba, K.; Destain, Jacqueline ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(4), 622-633

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See detailPheromone-based management strategies to control the tomato leafminer, Tuta absoluta (Lepidoptera: Gelechiidae). A review
Caparros Megido, Rudy ULg; Haubruge, Eric ULg; Verheggen, François ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(3), 475-482

We here review pheromone control strategies for species-specific and environmentally safe management of the tomato leafminer, Tuta absoluta (Lepidoptera: Gelechiidae). This insect pest originates from ... [more ▼]

We here review pheromone control strategies for species-specific and environmentally safe management of the tomato leafminer, Tuta absoluta (Lepidoptera: Gelechiidae). This insect pest originates from South America and is now considered to be one of the most damaging invasive pests of tomatoes in the Mediterranean Basin countries of Europe and North Africa. After presenting the general principles of sex pheromone-based control strategies, we describe strategies used to control T. absoluta including pest detection, population monitoring, mass annihilation and mating disruption techniques. [less ▲]

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See detailAmélioration des bilans d'excrétion d'azote dans deux exploitations laitières de la région wallonne par un suivi raisonné des rations
Knapp, Emilie ULg; Istasse, Louis ULg; Hornick, Jean-Luc ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17

Deux exploitations laitières situées l'une en Pays de Herve et l'autre en Ardenne ont fait l'objet de suivis réalisés en vue de déterminer les bilans d'excrétion azotée. Dans la première exploitation, les ... [more ▼]

Deux exploitations laitières situées l'une en Pays de Herve et l'autre en Ardenne ont fait l'objet de suivis réalisés en vue de déterminer les bilans d'excrétion azotée. Dans la première exploitation, les vaches étaient divisées en deux groupes, à savoir le groupes de hautes productrices (HP) et le groupe des basses productrices (BP), chaque groupe recevant une ration spécifique. Dans la seconde exploitation, les animaux constituaient un seul groupe. [less ▲]

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See detailThe development of knowledge regarding the characteristics of the proteose peptone fraction of milk: Techno-functional and biological properties. A review
Karamoko, Gaoussou; Anihouvi, Prudent; Blecker, Christophe ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(2), 373-382

The total proteose-peptone fraction (TPP) is defined as a heat-stable soluble fraction of milk, representing about 10% of the whey protein. TPP is divided into two classes according to its origin. The ... [more ▼]

The total proteose-peptone fraction (TPP) is defined as a heat-stable soluble fraction of milk, representing about 10% of the whey protein. TPP is divided into two classes according to its origin. The first class consists of proteolysis fragments of the β-casein from the N-terminal region. These are non-hydrophobic fractions, which are the highly soluble β-CN-5P (f1-105/107); β-CN-4P (f1-28) and β-CN-1P (f29-105/107) respectively called PP5 (14.3 kDa), PP8S (9.9 kDa), and PP8F (4 kDa). The second class includes the hydrophobic fractions of glycoproteins, whose major constituents are a glycoprotein LP28, the highly hydrophobic glycoprotein LP18 and a hydrophobic peptide with apparent Mr, respectively 28 kDa, 18 kDa and 11 kDa. TPP has numerous interesting characteristics such as techno-functional properties (emulsifying and foaming actions) and biological properties (lipolysis inhibition and antimicrobial activities), making TPP usable as a potential functional ingredient for industry. In addition, these functional properties are partly governed by the major components including glycoproteins, such as LP28, due to their hydrophobic nature. [less ▲]

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See detailGenetics of body condition score as an indicator of dairy cattle fertility. A review
Bastin, Catherine ULg; Gengler, Nicolas ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(1), 64-75

Body condition score (BCS) is a subjective measure of the amount of metabolizable energy stored in a live animal. Change in BCS of dairy cows is considered to be an indicator of the extent and the ... [more ▼]

Body condition score (BCS) is a subjective measure of the amount of metabolizable energy stored in a live animal. Change in BCS of dairy cows is considered to be an indicator of the extent and the duration of postpartum negative energy balance. Although change in BCS over lactation is lowly heritable, heritability estimates of level of BCS range from 0.20 to 0.50. Also, BCS tends to be more heritable in mid-lactation indicating that genetic differences are more related to how well cows recover from the negative energy balance state. BCS measurements are generally highly correlated within and between lactations. Genetic correlations with BCS are unfavorable for milk, fat, and protein yield, suggesting that genetically superior producers tend to have lower BCS, especially during the lactation. Genetic correlations are generally moderate and favorable with fertility indicating that cows with higher levels of BCS would have a greater chance to conceive after insemination and fewer number of days when not pregnant. Because direct selection to improve fertility might be complicated by several factors, selection for higher levels of BCS, especially in mid-lactation, appears to be a good option to indirectly improve fertility in dairy cows. [less ▲]

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See detailImportance nutritionnelle du manioc et perspectives pour l’alimentation de base au Sénégal (synthèse bibliographique)
Diallo, Younoussa; Gueye, Momar Talla; Sakho, Mama et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(4), 634-643

Cassava is one of the main plants and starchy roots grown in the world. In 2008, the total yield of cassava in West Africa represented 29% of the world production. However, in many West African countries ... [more ▼]

Cassava is one of the main plants and starchy roots grown in the world. In 2008, the total yield of cassava in West Africa represented 29% of the world production. However, in many West African countries such as Senegal, cassava is not used as a staple food. In fact, the processing techniques used for cassava are poorly known. In addition, the chemical composition of local cassava varieties has not yet been determined, nor has their toxicity been assessed. In 2004, showing an aggressive agricultural policy and revived interest, the Senegalese government launched a major program for intensifying the production of cassava for food security purposes. Cassava is an important source of calories and can be an interesting option for imported rice and wheat. Although many food products made from cassava are well known in the region, their use in the Senegalese diet is rare. Nevertheless, these cassava products are found as delicacies in some restaurants, and are consumed by the Senegalese and many other Africans. The objective of the present study is to demonstrate the nutritional value and the dietary possibilities of using cassava as a staple food in Senegal. [less ▲]

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See detailL’impact d’un Système Public d’Information sur l’intégration et l’efficacité des marchés : une application du modèle « Parity Bounds » au cas du maïs au Bénin
Kpenavoun Chogou, Sylvain; Adegbidi, Anselme; Lebailly, Philippe ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(2), 332-343

During the 1990s, agricultural market reforms prevailed within the economic liberalization undertaken in many sub-Saharan countries. In these countries, government intervention in the commodity markets ... [more ▼]

During the 1990s, agricultural market reforms prevailed within the economic liberalization undertaken in many sub-Saharan countries. In these countries, government intervention in the commodity markets through marketing boards or parastatal organizations was abandoned in favor of new market reforms. Public Market Information Systems (PMIS) thus emerged as part of these reforms. Even though great positive impacts were expected from these reforms, little empirical work has been carried out to evaluate their effects. This article investigates how PMIS has affected the market performance of maize, a major staple food crop in Benin. We use a modified version of the Parity Bounds Model (PBM). This method allows the estimation of the rates of spatial market efficiency or integration, but also the estimation of the rates of market arbitrage, autarky, profitable opportunities and the violation of market arbitrage conditions. Results showed that Benin’s agricultural sector suffered from a lack of quality training in how to follow the government-supported market information system implemented in the early 1990s. Subsequently, PMIS did not significantly improve the degree of market integration, although the reforms did induce new marketing opportunities. Results also showed that the impact of PMIS is limited by other market imperfections, such as entry barriers for non-residents or for persons not in local informal trade organizations, and the non-transparent enforcement of formal regulations. This study therefore recommends the implementation of more efficiency-raising policies in order to encourage competition and to allow PMIS to fulfill the expectations of farmers and consumers. Improving food producers and traders’ access to reliable information will allow them to better exploit the market opportunities induced by the reforms. [less ▲]

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