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De jeunes escargots Limicolaria flammea âges de deux semaines, avec un poids vif moyen de 0,07 ± 0,01 g et une longueur moyenne de coquille de 7,50 ± 0,03 mm ont ete soumis a cinq (5) regimes alimentaires dont deux a base de fourrages verts (R1: constitue par un melange de feuilles de Lactuca sativa (Asteraceae) et de Palisota hirsuta (Commelinaceae) et R2: compose de feuilles de Carica papaya (Caricaceae) et de Phaulopsis falcisepala (Acanthaceae) et trois regimes concentres sous forme de farine (R3, R4 et R5), de teneurs en calcium variables (6,82 %, 12,02 % et 16,01 % respectivement) en vue de determiner le taux de calcium susceptible d’induire de meilleures performances de croissance. La reproduction de l’escargot L. flammea est fortement influencee par les teneurs en calcium des aliments qu’il consomme. Les regimes concentres reduisent la duree du cycle sexuel, en ce sens que la maturite sexuelle qui est tardive (7 mois) avec les aliments vegetaux (R1 et R2) a ete rendue precoce (5 mois) avec ces aliments (R4 et R5). La teneur en calcium alimentaire influence le nombre total de pontes, la duree d’incubation et le taux d’eclosion des oeufs, alors qu’elle n’a pas d’effet sur le poids et les dimensions de l’oeuf. Le taux optimal de calcium induisant une meilleure reproduction varie de 12,02 % a 16,01 %. En outre, les animaux qui ont ete nourris a ces regimes ont eu une relative longevite, un nombre eleve de pontes, une duree d’incubation reduite et un taux eleve d’eclosion des oeufs, contrairement aux regimes a base de fourrages verts qui donnent des resultats peu prometteurs. Mots-cles: calcium, escargot, Limicolaria flammea (Muller, 1774), reproduction. Effects of dietary calcium on the reproduction parameters of the snail Limicolaria flammea (Muller, 1774), under indoor rearing Some young snails of Limicolaria flammea species of two weeks old, with an average live weight of 0,07 ± 0,002 g and an average shell length of 7,5 ± 0,03 mm were subjected to five (5) diets including two containing green fodder (R1: constituted by a mixture of leaves of Lactuca sativa (Asteraceae) and Palisota hirsuta (Commelinaceae) and R2:composed by leaves of Carica papaya (Caricaceae) and Phaulopsis falcisepala (Acanthaceae) and three concentrated diets in the form of flour (R3, R4 and R5), of variable calcium contents (6,82 %, 12,02 % and 16,01 % respectively) in order to determine the calcium rate suitable for induce better growth performances.The study shows that the reproduction of the snail L flammea is strongly influenced by the calcium contents of the food which it consumes. The concentrated diets reduce the duration of the sexual cycle, in the sense that the sexual maturity which is late (7 months) with vegetable foods (R1 and R2) was made early (5 months) with these food (R4 and R5).The dietary calcium content influences the total number of clutches, the duration of incubation and the hatching rate, while it has no effect on the weight and dimensions of eggs. The optimal calcium levels inducing a better reproduction varies from 12,02 % to 16,01 %. Moreover, the animals which were nourished with these diets had a relative longevity, a high number of clutches, reduced incubation time and a high rate of hatching, contrary to the diets containing green fodder which give not very promising results. Keywords: calcium, Limicolaria flammea (Muller, 1774), reproduction, snail.

Effets du calcium alimentaire sur les paramètres de reproduction de l escargot Limicolaria flammea (Müller, 1774), en élevage hors-sol