Issue |
Ann. Parasitol. Hum. Comp.
Volume 61, Number 3, 1986
|
|
---|---|---|
Page(s) | 285 - 288 | |
DOI | https://doi.org/10.1051/parasite/1986613285 | |
Published online | 31 August 2016 |
Mémoire
Efficacité d’un agent de surface amphotère contre les miracidiums de Schistosoma mansoni dans des conditions de terrain au Niger
Efficiency of an amphoteric surface agent against Schistosoma mansoni miracidia in field-like conditions in Niger
1
Parasitologiste ORSTOM, CERMES, B.P. 10887, Niamey, Niger.
2
Département de Biologie animale, Université, avenue de Villeneuve, F 66025 Perpignan, France.
3
Produits Chimiques de la Montagne Noire, F 81105 Castres, France.
4
CERMES, B.P. 10887, Niamey, Niger.
Accepté : 27 Septembre 1985
L’efficacité d’un agent de surface, la laurylamidopropylbétaïne a été testée dans des conditions de terrain sur les miracidiums de Schistosoma mansoni. Ces expériences ont eu lieu dans des mares artificielles de 20 m3 reproduisant le plus fidèlement possible certains types de sites de transmission. La dégradation de la laurylamidopropylbétaïne est assez lente et son efficacité sur les miracidiums de Schistosoma mansoni est très nette : à la concentration de 2 ppm, le pourcentage de Mollusques infectés est égal à zéro. Il est suggéré d’incorporer le produit actif dans les savons afin de limiter la transmission des schistosomes dans les lieux de lavage et de baignade.
Abstract
The laurylamidopropylbétaïne, a surface active substance, has been tested in field conditions, in Niger, against Schistosoma mansoni miracidia. Experiments were carried out in artificial ponds of 20 m3, in which conditions were similar, as far as possible, to conditions found in transmission sites. The product showed a satisfactory remanence and the percentage of infected molluscs dropped down to zero with a low (2 ppm) concentration. It is suggested that laurylamidopropylbetaïne could be used into soaps in order to renew constantly the product in washing and bathing places and reduce schistosome transmission.
Mots clés : Agents de surface amphotères / Lutte chimique / Miracidiums / Schistosoma mansoni / Stades infectants / Niger
Key words: Amphoteric surface agents / chemical control / miracidia / Schistosoma mansoni / infective stages / Niger
© Masson, Paris 1986, transferred to Société Française de Parasitologie
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