Impact of some local organic by-products on <i>Acheta domesticus</i> growth and meal production

The house cricket Acheta domesticus is one of the species major interest as alternative protein source for humans in recent research sustainable and nutritious sources food. However, grain feeds, feed poultry soybean still represent common feeds insect industry. aim this study was to evaluate influence some agro-food by-products on growth parameters crickets nutritional composition final meal. Our included five (maize distiller, fruits vegetables, grape marc, two brewery’s wastes), while hen used a control diet. Substrates were analysed their microbiological contamination prior be provided crickets. No Listeria Salmonella detected, but high microbial counts observed. Crickets grown given showed significant differences insect’s weight starting from third week. High mortality observed all substrates, except maize distiller meal similar content (66-68% is), lipid higher reared (22% is). Finally, chemical analyses meals did not show safety concerns consumers. studied, support an optimal rearing, more studies are necessary identify mix-formulation meeting requirements.