Epiphane Sodjinou

• PhD
• Associate Professor at University of Parakou

In this paper, we investigate right-truncated count data models incorporating cavariates into the parameters. A regression method is proposed to model right-truncated count data exibiting high heterogeneity. The study encompasses the formulation of the proposed model, parameter estimation using an Expectation-Maximisation (EM) algorithm, and the pr...

In most developing countries, village poultry are raised in a scavenging system which gives the impression that all the birds in the village belong to the same flock. Therefore, actions targeting the entire community (Community-Based Management, CBM) could better contribute to improving the productivity of village poultry, notably through the adopt...

The purpose of this study is to analyze the impact of agricultural clusters on the economic effectiveness of Benin's soybean producers. The questionnaire has been sent to a total of 360 of producers those belonging to an Agribusiness Cluster (ABC) and who do not participate. The invested producers were selected randomly. The data have been analyzed...

La contractualisation, qui est un accord entre un producteur et un prestataire qui s’engage à fournir des services en nature ou en numéraire pour une contrepartie exigible à l’échéance conformément aux clauses fixées préalablement, permet de résoudre les problèmes d’accès aux intrants, aux financements, et aux marchés des produits. L’objectif de ce...

This study examined the effect of sample sizes, distribution of the noise term and variance inefficiency term performance on directional output distance function ( DODF ) through Monte Carlo experiments. Sample sizes from 100 to 500 at the interval length of 100, variance of the inefficiency term (\(\sigma_u^{2}=0.05, \ 0.8)) and distribution of th...

La production de l’igname, basée essentiellement sur des cultures itinérantes sur brûlis dans les forêts naturelles ou les savanes arborées, entraîne la dégradation des terres, l’appauvrissement des sols et la perte de la biodiversité. Afin de remédier à ces problèmes, les systèmes agroforestiers sont promus en tant que pratiques agricoles alternat...

Objectives: This review aims to make a comprehensive synthesis of distance function methods for the efficiency analysis of organic production units. Methodology and Results: The study reviewed and summarized the different approaches of distance functions applied in organic farming systems to assess performance. Original articles covering ten years,...

L’objectif de cette étude était d’analyser les perceptions paysannes de l’effet des changements climatiques sur l’agriculture et d’évaluer l’impact de ces changements climatiques sur les revenus agricoles des producteurs. Pour ce faire, des données qualitatives et quantitatives ont été collectées dans six des douze départements du Bénin sur un écha...

Sweet potato (SP) weevils, Cylas spp. are important pests of SP throughout the world and particularly in Africa. They cause damage to the crop as a result of their diet and reproduction. This study was undertaken to identify species of Cylas attached to SP production in southern Benin and to assess the distribution of the insects in study areas. A...

L’objectif de cette étude est de faire l’évaluation économique des aulacodes d’élevage engraissés avec trois niveaux de compléments alimentaires dans la production du kilogramme de viande Grand-Lahou, Côte d’Ivoire. Le dispositif expérimental était composé d’un bloc aléatoire simple à trois traitements, de rations alimentaires à trois répétitions c...

This study analyses the profitability of organic and conventional cotton in Benin and assesses their determinant factors. The research was carried out in three districts including Glazoue, Banikoara, and Tanguieta. Those localities belong to different agro ecological areas. For the purpose of this research, we used a quantitative approach based on...

Le document traite de l’analyse financière de l’entreprise agricole ou agroalimentaire. Il aborde l’analyse financière dans sa vision rétrospective et dans sa vision prévisionnelle. Dans le premier cas, deux principales méthodes ont été développées à savoir la méthode des marges ou l’approche budget d’entreprise (incluant les charges opérationnelle...

Parmi les contraintes au développement de la pisciculture au Bénin, les problèmes liés à l’alimentation occupent une place importante. Ainsi, aussi bien le coût des aliments que leurs qualités et valeurs nutritives constituent des préoccupations soulevées à toutes les rencontres ayant trait à l’aquaculture. Par conséquent, la présente étude a été r...

Village poultry, also termed “bicycle poultry,” is produced in scavenging farming systems and is a chewy meat with a low fat content, and constitutes an important source of meat in many African countries. This study investigates consumers’ preferences regarding the physical traits of these birds (notably chickens, ducks and guinea fowl) in the Repu...

Organic cotton relies on ecological processes and the use of natural resources to sustain the production system, unlike conventional cotton, mainly characterized by massive utilization of synthesis chemicals. In West Africa, where rural livelihoods are particularly vulnerable, organic cotton is expected to contribute not only to poverty reduction b...

Abstract Text: Village poultry, also termed "bicycle poultry" because it is produced in scavenging farming systems, has preferred juicy meat with low fat content and constitutes an important source of meat in many African countries. This study aims to understand reasons underlying consumers’ preferences for physical traits of these birds in Bnin....

Community-based management (CBM) of village poultry aims to foster development and reduce poverty in Benin by disseminating five technologies for improving village poultry farming. We develop a theoretical model to analyze multiple technology adoption decisions that takes into account the interrelations between the technologies. Estimates from mult...

Community-based poultry health management (CBM) is a strategy for village poultry improvement based on the installment of "poultry interest groups" in experimental villages. These groups serve as a channel for the dissemination of village poultry improvement technologies. The use of CBM is due to the fact that village poultry farming is practiced i...

Benin is among the poorest countries in the world with an agriculture-based economy. Poverty is more prevalent in rural areas where, for many people, village poultry plays a significant income generating role. The important position of village poultry in the national meat supply (second most popular source of meat after beef) and in the household‘s...

Technical and economical analysis of the grass cutter husbandry in Northern Bénin: Adoption determinants Abstract The grass cutter (Thryonomys swinderianus) husbandry is less developed in the North than in the South of Bénin. The objective of this study is to identify and to analyze the constraints that hobble the development of grass cutter rearin...

Résumé L'élevage de l’aulacode (Thryonomys swinderianus) est moins développé au Nord du Bénin que dans le Sud-Bénin. L’objectif de cette étude est d’identifier et d’analyser les contraintes au développement de l’aulacodiculture au Nord-Bénin. Cette étude, réalisée dans les quatre départements du Nord (Borgou, Alibori, Donga et Atacora), s’est dérou...

The objective of this paper is to analyze the African giant snails marketing system study in order to make recommendations for their rational and sustainable exploitation. Three rural markets (Houègbo, Zinvié and Avakpa) and one urban market (Dantokpa in Cotonou) have been studied. In these markets, 53 actors of African giant snails marketing syste...

Characterisation of African Giant Snails Market in Atlantique and Littoral Regions in South-Benin. The African giant snail is an animal which's meat is very appreciated by all social categories, in countryside as well as urban surroundings, at the same title the grass-cuter and the chicken. But this meat is a lot more consumed by the rich compared...

L’objectif de ce travail est d’étudier différentes techniques de rééchantillonnage avec le logiciel statistique S-PLUS 2000. Après une introduction à ce dernier, le principe qui sous-tend les différentes techniques de rééchantillonnage et leur mode d’utilisation en régression et pour l’estimation des limites de confiance ont été abordés. La manière...