Laboratoire Of Recherche En Biologie Appliquee Larba
Laboratoire Of Recherche En Biologie Appliquee Larba
Akpo Y.,Center Cunicole Of Recherche Et Dinformation Cecuri |
Kpodekon M.T.,Laboratoire Of Recherche En Biologie Appliquee Larba |
Kpodekon M.T.,Center Cunicole Of Recherche Et Dinformation Cecuri |
Djago Y.,Center Cunicole Of Recherche Et Dinformation Cecuri |
And 2 more authors.
Veterinary Parasitology | Year: 2012
Three groups of twelve 35-day-old rabbits were used for the experiment. Two groups were vaccinated with a mixture of precocious lines of Eimeria magna and Eimeria media originating from corresponding wild strains isolated in Benin. One group benefited of a booster whereas the second one was kept without booster. A third non-vaccinated group was used as control. All groups were challenged per os with an equal mixture of the wild strains of E. magna and E. media at a dose of 104 oocysts per animal. Three weeks after the challenge inoculation, no case of diarrhoea was recorded in the two groups of vaccinated rabbits, as compared to the non-vaccinated rabbits that developed diarrhoea. No mortality was recorded in the three groups. During the patent period, oocyst output of vaccinated rabbits was significantly lower than that of control animals (P<0.01), confirming a good immunogenic characteristic of the precocious lines. No booster effect was noticed for the boost vaccinated group. The daily weigh gain of the two groups of vaccinated rabbits was significantly higher than that of the non-vaccinated rabbits (P<0.05). Consequently the precocious lines of Benin origin turned out to be immunogenic and therefore constitute good potential candidates for vaccine production for this country. © 2011 Elsevier B.V.
Yehouenou A. Pazou E.,Laboratoire Of Recherche En Biologie Appliquee Larba |
Aleodjrodo P.E.,University Abomey Calavi |
Azehoun J.P.,Institute National des Recherches Agricoles du Benin |
Van Straalen N.M.,VU University Amsterdam |
And 3 more authors.
Environmental Monitoring and Assessment | Year: 2014
Lake Nokoué and Cotonou Lagoon are the most important and most productive continental freshwaters in Bénin, with an estimated fish production of over 2 tonnes per hectare in Lake Nokoué. Organochlorine pesticides are used in agriculture and to repel tsetse flies, malaria mosquitoes and other diseases raised. Sediment, fish, shrimp and oyster species were collected in Lake Nokoué and Cotonou Lagoon for pesticide residues analysis. The main pesticides identified in sediment were pp′-DDT and its metabolites pp-DDE and pp′-DDD, with residue levels between the detection limit and 24.4 μg/kg dry weight. Fish species commonly consumed such as Elops lacerta, Podamasys jubelini, Gobbienellus occidentalis, Ethmalosa fimbriata, Mugil cephalus and Hemichromis fasciatus were contaminated with residues of seven to nine pesticides, including pp-DDE, op′-DDD, pp′-DDD, op′-DDT, pp′-DDT, α-endosulfan, aldrin, dieldrin and γ-hexachlorocyclohexane. The levels ranged from detection limit to 289 ng/g lipid. The same pesticides were also detected in other aquatic species, such as shrimp and oysters. A summed risk assessment, comparing pesticide intake levels through fish consumption with tolerable daily intake levels proposed by the World Health Organization, showed in all cases a low risk for human health. © 2013 Springer Science+Business Media Dordrecht.
Influence of precocious milking of cows on the growth and the health of calves in traditional breeding in the suburban zone of Natitingou (Benin) [Influence de la traite précoce des vaches sur la croissance pondérale et létat sanitaire des veaux en élevage traditionnel: Cas de la zone périurbaine de Natitingou (Bénin)]
Koutinhouin B.G.,Laboratoire Of Recherche En Biologie Appliquee Larba |
Youssao A.K.I.,Laboratoire Of Recherche En Biologie Appliquee Larba |
Kpodekon T.M.,Laboratoire Of Recherche En Biologie Appliquee Larba |
Gantoli Y.G.,Projet de Promotion de lelevage dans lAtacora
Livestock Research for Rural Development | Year: 2010
A study on the influence of precocious milking on the growth and viability of calves was carried out on 112 calves belonging to 11 herds entrusted to Peuls herdsman in the suburban zone of Natitingou. Two lots were made: the experimental composed of calves subjected to the systematic colostral diet (without milking of the cows during the first week) and the control lot composed of calves subjected to the irregular colostral diet (with milking of the cows). From calving to eight days old, the calves of the two lots had identical weights. At weaning, the calves of the experimental lots had on average 3 kg of live weight more than the control calves of the same age (P<0.05). The number of red blood cells was significantly higher in the experimental calves (6 263 000 vs 4 980 000 per ml of blood) whereas the number of white blood cells was higher in control calves (10 250 vs 12 983 per ml of blood). From the ¶10th to the 30th day after the calving, the prevalence of gastro-intestinal infections of calves of the experimental lots was half of those of the control calves (13 vs 24%). The ad-libitum consumption of colostrum improved the growth performance of calves, reduced their perinatal morbidity and mortality rates and increased their productivity.