Mahamadou Dahouda

University of Abomey-Calavi | UAC · Faculty of Agricultural Sciences (FSA)

Background and Aim Bovine tuberculosis (bTB) is a contagious and notifiable disease, which is prevalent in cattle populations of many countries and in several wildlife species worldwide. However, the role of wildlife in the transmission and/or maintenance of bTB at the human-wild animal-animal interface and the epidemiology of zoonotic disease are...

Cette étude a été entreprise afin de caractériser la diversité des systèmes d’élevage caprin et identifier les principales contraintes et opportunités pour leur durabilité dans les différentes zones agro-écologiques du Bénin. Les données collectées sur 478 troupeaux caprins ruraux élevés dans quatre communes du Bénin ont été soumises à une analyse...

The snail meat is very appreciated by the Beninese population, however, its quality is not under control. This study aims to evaluate the morphological characteristics, technological, organoleptic and nutritional quality of snail meat marketed for consumption. For this purpose, 120 giant African snails (Archachatina marginata, Archachatina ventrico...

Objective: To characterize the semen of three genetic types of boars (local, improved and Large White boars) reared in Benin. Methods: Sperm of local, improved and Large White boars reared in Benin were collected using the gloved hand method and analyzed to determine volume, pH, concentration, mobility, motility and morphology. The effect of the g...

Knowledge of the diet of Macrobrachium macrobrachion (Herklots, 1851) in its natural environment is a key factor facilitating its successful breeding. We have analyzed the stomach content of 452 specimens collected from the Ouémé River Delta (ORD) (338 stomachs) and from the Mono River/Grand-Popo Lagoon complex (MGLC) (114 stomachs), from February...

Benin’s domestic production of pork is deficient because of the animals’ low productivity. This study aimed to evaluate the zootechnical performances of pigs reared in south Benin. Data on zootechnical performances and reproduction management were collected from 63 farms in the departments of Ouémé and Plateau. These data were analyzed with SAS sof...

This study explored the potential role of agro-ecology in shaping the morphology of Lagune cattle population of Benin. A total of 708 adult Lagune cattle were sampled randomly from nine provenances in two agro-ecological zones (AEZs) and were assessed for eight qualitative and twelve linear body measurements. Data were analyzed using generalized li...

Objectif : L’élevage du canard de Barbarie est moins développé au Bénin comparativement aux poulets et à la pintade. L’objectif de l’étude est de caractériser cet élevage dans le Sud du Bénin. Méthodologie et résultats : Ainsi, une enquête a été réalisée de Juin 2015 à Août 2016 dans 213 élevages de canard de Barbarie répartis dans trois zones agro...

L’insémination artificielle est une technique de fécondation sans intervention directe du mâle, par dépôt de sperme dans les voies génitales de la femelle. Elle est utilisée pour la diffusion du progrès génétique et permet à l’éleveur de gagner du temps dans l’exploitation. Elle est également un outil de contrôle des pathologies vénériennes de cont...

Good knowledge of tropical animal species requirements is required to improve their productivity. The paper describes voluntary dry matter intakes in growing and fattening rabbits as affected by tropical climate. This study aims at determining the levels of concentrate feed consumed alone or in association with fodder. Thus, two commercial concentr...

Diet quality, especially its protein content can improve pigs' performances and immune status. This study aims at assessing the effects of varying energy and protein contents in diet on pigs' growth performances and immune status through two periods of experiments: growing and fattening. A total of 32 weaned pigs (growing period, 56 days) and 32 fa...

Background: The improvement in pig zootechnical performances is a common practice in Benin. This improvement of the performances is made by the choice of the best reproducers in farms and the crossbreeding between the different breeds. Aim: This study aims to characterize practices related to consanguinity management in pigs reared in Ouémé and...

Cross-border seasonal livestock movements in West Africa bring into close contact several cattle breeds. In the coastal countries hosting migrating herders from the Sahel, it often affects the genetic variability and geographical distribution of traditional cattle breeds, through their indiscriminate but also intended crossbreeding with larger-fram...

The West African Shorthorn Lagune cattle breed of Benin is known for its adaptability to humid regions and resistance to parasitic diseases: But since 1970’s, its population size, estimated to about 37000 in 2004, is sharply decreasing. Yet, past initiatives of conserving this small-bodied breed were limited to its characterisation out of its produ...

The West African Shorthorn Lagune cattle breed of Benin is known for its adaptability to humid regions and resistance to parasitic diseases: But since 1970’s, its population size, estimated to about 37000 in 2004, is sharply decreasing. Yet, past initiatives of conserving this small-bodied breed were limited to its characterisation out of its produ...

Most Benin's pig farmers do not have access to commercially feeds due to its high cost, which obliges them to make their own diet using available local feedstuffs in their localities. The study assessed the nutritional values and chemical composition of the diets composed by farmers and the raw materials used to prepare such diets. For this purpose...

L'élevage bovin constitue une source d'activités très importantes pour les agriculteurs du nord-est Bénin. Cependant, les différentes pratiques d'alimentation et de gestion des ressources alimentaires locales restent très peu connues. Cette étude a été réalisée dans les Communes de N'Dali, Nikki et Kalalé au Bénin auprès de 330 éleveurs (110 par Co...

Une typologie des pratiques d'alimentation des caprins a été réalisée dans quatre zones agro-écologiques du Bénin (Tanguiéta au nord-ouest, Kérou au nord-est, Kpomassè au sud et Glazoué au centre). Cette enquête a pris en compte 480 producteurs de caprins répartis dans quatre villages. Les données collectées à l'aide d'un questionnaire structuré on...

Muscovy ducks reared in Benin have a good growth performance and are very rustic animals. However, these birds' carcass traits are little-known. This study aimed to evaluate the body composition of Muscovy ducks reared in South Benin. Thus, data on carcass traits and fifth quarter components were collected from February 07 to April 04, 2018 on 40 M...

In Benin, veterinary antibiotics are widely used for cattle breeding. This livestock contributes to 57% of the locally produced meat. The aim of this study was to assess the impact of the large use of antibiotics by determining the contamination level with antibiotic residues in bovine meat, in North Benin. Kidney and muscle samples taken from 50 b...

Fish is a very perishable foodstuff whose preservation requires a continuous cold chain. The study aims to evaluate the effect of the break in cold chain on the bacteriological quality of Scomber scombrus (Atlantic mackerel) and Trachurus trachurus (Horse mackerel). Thus, data were collected from June to December 2016 in South Benin. A total of 120...

Meat is a food, which is rich in protein and is very important in human nutrition. Meat quality is based on its organoleptic, nutritional, hygienic and technologic proprieties. The main aim of this paper is to review on the quality of the meats consumed in Benin. It also reviews on the statistics of meat production and meat importation in this coun...

Stress generally deteriorates meat quality. The current study aims to evaluate the influence of the pre-slaughter transportation duration stress on carcass and meat quality in local chicken of Benin. Sixty-four chickens of 6 to 7 months old divided into 4 flocks of 8 males and 8 females each reared under traditional system were used. Chickens of th...

Non-genetic factors influence production and reproduction performances of animals. This study aims to evaluate the influence of the parturition rank, the parity and the sex on the zootechnical performance of the dwarf goat in the Sudanian zone of Benin. To this end, data on reproductive and production performance were collected on 954 goats. From t...

This article present digestility of Moringa leave meal based diet by Rabbit.

Fish is one of the most important protein sources in Benin. Inappropriate processing and preservation processes could deteriorate fish quality traits. The study aims to evaluate the effect of processing and preservation processes on the technological and organoleptic qualities of fish in south Benin. Thus, 86 fish processors and wholesalers were su...

Abstract - The processing and preservation processes are necessary to guarantee the microbiological, technological, organoleptic and nutritional qualities of fish. This article describes the technological (fish flesh composition, fish flesh evolution after capture, evisceration, filleting, water content, water holding capacity and pH), organolept...

Le poisson est l’une des sources de protéine la plus importante au Bénin. Le but de l’étude est d’évaluer les qualités technologiques et sensorielles des poissons fumés dans le département du littoral. A cet effet, des données sur la fumaison et sur la qualité de la chair de Scomber scombrus (maquereau commun) et de Trachurus trachurus (chinchard...

Fish is one of the most important sources of protein in South Benin. The fainting of hygiene in the processing and preservation process constitutes a potential danger to the consumer by the appearance of pathogenic germs. This study aimed to control the sanitary quality of smoked fish in the Littoral Department (Benin). Thus, data were collect...

Fish is a very perishable foodstuff. The multiplication of the pathogenic germs is a problem of public health. The study aimed to evaluate the effect of processing and preservation processes on the microbiological quality of fish in south Benin. The study was carried out from June 2014 to December 2014. One hundred and twenty (120) samples of Sarot...

Dans le but de caractériser les pratiques d’alimentation des porcs dans les départements de l’Ouémé et du Plateau au Sud-Bénin, une enquête a été réalisée auprès de 151 éleveurs de porcs. Cette étude a permis d’identifier trois groupes d’éleveurs. Le groupe 1 (32,5 % des personnes enquêtées) était composé en majorité d’éleveurs sans instruction sco...

L’élevage porcin est très pratiqué au Sud-Bénin et implique une diversité de races ou de populations. L’objectif de l’étude était de caractériser les différents porcs sur le plan morphométrique et phénotypique. Ainsi, les données phénotypiques ont été collectées sur 149 porcs, dont 14 améliorés, 91 croisés et 44 locaux. Les porcs de type génétique...

Le poisson est l'une des sources de protéine la plus importante au Bénin. Le but de l'étude est d'évaluer les qualités technologiques et sensorielles des poissons fumés dans le département du littoral. A cet effet, des données sur la fumaison et sur la qualité de la chair de Scomber scombrus (maquereau commun) et de Trachurus trachurus (chinchard)...

The aim of this study was to evaluate the possibility of using neem (Azadirachta indica) leaves in the feeding of lactating rabbits. For 35 days, food consumption, weight performance and mortality were recorded in 96 mother cages of four batches of lactating rabbits subjected to four diets, including a control diet without neem leaves (lot 0) and t...

Le stress est un état comportemental, physiologique et émotionnel de l’animal confronté à une situation qu’il perçoit comme menaçante pour le fonctionnement de son état corporel ou mental. Cet article a pour but de faire un point des connaissances du stress et de ses conséquences sur la qualité de la carcasse et celle de la viande des animaux de pr...

Agronomic performance of groundnut differs according to variety. The objective of the study was to determine the productivity, the fodder and the nutritional potentials of haulms of four varieties of groundnut. A systematic randomized controlled trial was carried out with six replicates. Each block counted for has 24 plots with an area of 50 m². Th...

This study was conducted as part of a series of experiments on the use of dried leaves for the production of complete rabbit feed. For this purpose, 120 female rabbits, distributed in 4 batches (N0, N5, N10 and N15) with the same number (30) and homogeneous average weights (2595 g to 2708.7 g) were followed before and during pregnancy. Each of the...

Stress generally deteriorates meat quality. The current study aims to evaluate the influence of the pre-slaughter transportation duration stress on carcass and meat quality in local chicken of Benin. Sixty-four chickens of 6 to 7 months old divided into 4 flocks of 8 males and 8 females each reared under traditional system were used. Chickens of th...

The perceptible growth delays and financial losses in the Beninese cuniculture farms are often the result of inadequate feeding and high mortality rates. The aim of this study was to contribute to improve the zootechnical performances and the profitability of the cuniculture farms. Thus, a trial was carried out on four lots of 28 rabbits (male and...

Understand animal pre-slaughter conditions, is very important to prevent stress and its subsequent detrimental effects on meat quality. The current study aims to clear up the ante-mortem transportation, capture chase and waiting time conditions of local chicken. A survey was carried out on 50 poultry traders or sellers and 50 breeders in the townsh...

Producers’ typology is a key factor to identify the diversity of existing farms in order to establish development actions. This study aimed to characterize existing groundnut production systems in Northern Benin. Therefore, 126 groundnut farmers were enrolled and interviewed in Borgou and Alibori Departments where by three types of production were...

The current work aims at determining relationships between technological and nutritional meat quality parameters in Holli, Fulani, Sahoue, North and South indigenous chicken ecotypes of Benin. Color parameters (L*, a*, b*, hue and chroma), pH, texture, dry matter content, protein content, fat content, and ash content were collected on 52 cockerels...

La présente étude s’est intéressée à la comparaison des performances (zootechniques et économiques) et à la qualité de la viande des lapins nourris aux aliments à base de folioles de Moringa (Moringa oleifera Lam.) ou aux aliments commerciaux. Au total 144 lapereaux de race locale âgés de 35 à 40 jours dont 79 mâles et 65 femelles, ont été répartis...

The offal is well appreciated by consumers in sub-Saharan Africa and viscera are sold at the same price as the carcass meat. Therefore, the aim of this study was to assess on the offal components yield of Lagunaire, Borgou and Zebu Fulani bulls raised on natural pasture and to examine the macroscopic lesions associated with potential hazards for th...

Objectives: The current work was carried out to determine the relationships between live weight, carcass traits and the offal components traits in Holli, Fulani, Sahoue, North and South indigenous chicken ecotypes of Benin. Methodology and results: 260 indigenous chickens of which 52 cockerels of each ecotype were slaughtered at 24 weeks old and us...

This study was carried out to evaluate muscle characteristics, meat ten derness and nutritional qualities of Benin indigenous cattle raised on natural pasture. Thus, 10 Zebu Fulani, 10 Borgou and 5 Lagunaire were slaughtered at 5 years old and their Longissimus thoracis muscle samples were collected for analyses. Lactate dehydrogenase activity of Z...

The local poultry population of Benin is composed of various ecotypes including chickens Holli, Sahoue, Fulani, North and South. To better characterize them, our study aims to assess their carcass traits according to genetic type, breeding system and slaughter age. Thus, 260 chickens of which 52 chickens of each ecotype were divided in two lots and...

La caracterisation des systemes d’elevage permet d’identifier la diversite des elevages afin d’elaborer des actions de developpement. Le but de cette etude est de caracteriser les types d’elevages de bovins de race Borgou dans la zone septentrionale du Benin. La collecte des donnees a eu lieu dans 40 elevages dans l’Alibori, 24 dans l’Atacora et 84...

This study aimed at comparing two proteins sources on the performance of quail bred in Benin. Six groups of 45 quails from common breed, without sex discrimination, received diets containing either soybean meal (20 and 25%), fishmeal (20 and 25%), or their mixture (20 and 25%). The feeding period lasted six weeks. Quail weights were similar at the...

The grassland resource could be better managed if the effect of different defoliation regimes on the amount of the dry matter and nutritive value was known. Consequently, 9 ecotypes of Panicum maximum were evaluated in central region of Benin with an average 1100 mm annual rainfall during 3 years for ley pasture without any fertiliser input. Three...

Objectif : La qualité de la viande prend en compte la qualité technologique, la qualité organoleptique, la qualité nutritionnelle et la qualité hygiénique. Le but de cette étude est d’évaluer les qualités technologiques et organoleptiques de la viande de bovins de races Borgou, Lagunaire et Zébu Peulh, élevés sur pâturage naturels. Méthodologie et...

Panicum maximum est une espèce fourragère très polymorphe répandue en Afrique tropicale. Une meilleure connaissance de sa diversité contribuera à son amélioration et à son utilisation. Cette étude a étéréalisée en 2008 dans la zone Ouest Africaine sur des souches autochtones et porte sur 70 accessions de l’espèce collectées dans différentes zones a...

Local chicken populations of Benin include North, South, Holli, Fulani and Sahoue ecotypes. This study assesses the nutritional quality of their meat. Two groups of 26 chickens of each ecotype were reared under free range or confinement breeding systems, and slaughtered when 20, 24 and 28 weeks old. Breast and thigh-drumstick meats were used for ch...

Chicken meat results from overall biochemical and mechanical changes of the muscles after slaughtering process. The transformation of muscle in meat is a control point in the determinism of meat quality. Several and complex factors can affect poultry meat quality properties. Therefore, genotype, age, sex, type of muscle, structure of muscle fiber,...

A study on growth performance, carcass traits and meat quality was carried out on Savannah and Forest ecotype chicken of Benin, using Label Rouge (T55 X SA51) as a control genotype. All the animals were fed ad libitum with three diets (starter, grower and layer feed). They were individually weighed at hatching and during the growing stage, and the...

The present study aimed to evaluate the effects of Cassia tora leaves meal inclusion in the diets of growing indigenous Senegal chickens on growth performances, carcass and organ characteristics and economic margins. A total of 88 indigenous Senegal chickens, 6 week old, were randomly allotted into 4 equal groups according to the proportions of C....

L’objectif de l’étude est de déterminer l’effet de la densité sur les performances de croissance des jeunes escargots géants Africains (Archachatina marginata). Au total, 232 escargots géants Africains dont 160 juvéniles d’un jour d’âge ont été répartis dans des pots d’élevage aux densités 50, 100, 150 et 200 achatines/m2 et 72 jeunes de 3 mois d’â...

The correlations and Principal Components Analysis allow appreciating the relationship between several variables. Therefore, this study aims to establish the relationships between the offal components and the carcass characteristics of Lagunaire, Borgou and Zebu Fulani bulls raised on natural pasture and slaughtered in abattoir of Cotonou-Porto-Nov...

The study of the phenotypic characterisation and molecular polymorphism of local chicken populations was carried out in Benin on 326 chickens of the Forest ecological area and 316 of the Savannah ecological area, all were 7 months old at least. The collection of blood for the molecular typing was achieved on 121 indigenous chickens of which 60 from...

In Benin, there is no assessment related to the body composition of native bovine breeds in spite of the requirements of butchers and consumers. This study aimed at evaluating Benin indigenous cattle carcass characteristics raised on pasture and slaughtered in the abattoir of Cotonou-Porto-Novo at 5 years old. Carcass characteristics, carcass confo...