Tropicultura (Jan 2007)
Les escargots comestibles de Côte d'Ivoire: influence de substrats d'élevage sur les paramètres de croissance de Archachatina ventricosa (Gould, 1850) en élevage hors-sol
Abstract
Edible Ivorian Snails: Influence of the Breeding Substratum on the Parameters of Growth of Archachatina ventricosa (Gould, 1850) in Indoor Rearing. Two hundred fifty youngs of Archachatina ventricosa (Gould, 1850) with an average of 2.30 g body weight and 20.12 mm shell length, two weeks old approximately were bred for 48 weeks on five types of substrata [S1 (ground collected under a cassava plantation (Manihot spp.); S2 (S1 with oyster powder 10%), S3 (S1 with sawdust 10%), S4 (S1 with oyster powder 5% and sawdust 5%), S5 (ground of humid tropical forest)]. In order to determine the substratum inducing the best performances of growths, all the individuals were fed a concentrated food with 14.01% of calcium. This study revealed that the quality of the substratum influences the parameters of growth of A. ventricosa. The best growth was obtained on the substratum S3 (0.284 g/j; 0.169 mm/j). The substrata S2 and S4 support a similar growth to the pilot substratum (S5). The sawdust thus supports a better growth of A. ventricosa and could then be advised as source of amendment of the substrata to whoever would like to make the breeding of this specie.
