Influence de la densité animale sur la croissance et la reproduction de l’escargot Limicolaria flammea (Müller) en conditions d’elevage

Abstract

1,20 ± 0,02 g average live weight and 15,37 ± 2,34 mm average shell length were subjected four densities (100, 200, 300 and 400 snails/m 2 ) during 12 months in order to determine their effect on growth and reproduction. The best biological performances were obtained with the density of 100 snails/m 2 which induced high food intake (0,14 ± 0,002 g/day/g of live weight), better growth and low mortality (16%). This density induced high number of laid eggs, high number of eggs per laying and a high percentage ISSN 0065-1737 Acta Zoológica Mexicana (n.s.), 27(2): 393-406 (2011