Effet de la densité de charge et de différents types de substrat sur la productivité du ver de fumier <i>Eisenia foetida</i> (Savigny, 1826) pour l’alimentation des sujets d’élevage

La presente etude vise la mise au point de techniques efficaces pour la production intensive de ver de fumier. L’effet de la densite de charge et l’influence de la nature du substrat ont ete etudies sur les performances de production du ver du fumier Eisenia foetida durant 8 semaines. Les fumiers de bovin, d’ovin, de lapin et de porc sont utilises a divers taux dans le substrat pour produire le ver de fumier a partir de deux densites differentes (d10 = 10 vers/5,2 cm 3 et d30 = 30 vers/5,2 cm 3 . Le substrat temoin est la terre de barre de la station d’elevage. Au total 90 bacs ont ete utilises suivant les traitements 75%, 50% et 25% du fumier concerne, le complement etant la terre de barre. Le dispositif experimental est un bloc aleatoire complet constitue de 5 traitements et de 2 densites. L’analyse de variance a deux criteres (ANOVA 2) a permis de comparer la productivite des substrats en fonction des densites. Les principaux resultats obtenus montrent que les substrats utilises influencent differemment la productivite des vers de fumier de meme que les densites de mise en culture de ceux-ci (p < 0,05). La classification ascendante hierarchisee indique que les substrats les plus productifs sont ceux de bovin (137,38 ± 38,00 vers /semaine) et de lapin (167,11 ± 25,00 vers/semaine). La production des vers de fumier dans les petits agro-systemes est donc possible et pourrait contribuer a la reduction des couts d’alimentation des sujets d’elevage. © 2017 International Formulae Group. All rights reserved. Mots cles: Ver de fumier, substrats d’elevage, densite, productivite English Title:  Effect of loading density and different substrate types on the productivity of manure worm Eisenia foetida (Savigny, 1826) for the feeding of livestock English Abstract The present study aims at the development of effective techniques for the intensive production of worm of manure. The effect of the density of load and the influence of nature of the substrate were studied on the performances of production of the worm of the manure E foetida during 8 weeks. The manures of bovine, sheep, rabbit and pig are used at various rates in the substrate to produce the worm of manure starting from two different densities (d10 = 10 worms by 5.2 cm 3 and d30 = 30 worms by 5.2 cm 3 . The pilot substrate is the ground of bar of the station of breeding. In total 90 vats were used according to the treatments 75%, 50% and 25% of the manure concerned, the complement being ground of bar. The experimental device is a complete random block with 5 treatments with three repetitions by density. The variance analysis to two criteria (ANOVA 2) made it possible to compare the productivity of the substrates according to the two densities. The principal results obtained show that the substrates used differently influence the productivity of the worms of manure just as the densities of setting in culture of those (p < 0.05). Hierarchical ascending classification indicates that the most productive substrates are those of bovine (137.38 ± 38.00 worms/week) and of rabbit (167.11 ± 25.00 worms by week). The production of the worms of manure in the small agro-systems is thus possible and could contribute to the reduction of the costs of food of the breeding subjects. © 2017 International Formulae Group. All rights reserved. Keywords: Worm of manure, substrates of breeding, density, productivity