Effects of date (<i>Phoenix dactylifera</i> L.) kernel essential oil on growth performance and innate immunoassay in rainbow trout (<i>Oncorhynchus mykiss</i>) juveniles

This study aimed to investigate the effects of date (Phoenix dactylifera L.) kernel essential oil on growth and development performance parameters as well phagocytic activity, respiratory burst superoxide dismutase, lysozyme myeloperoxidase activity from immune rainbow trout (Oncorhynchus mykiss). The nutritional was performed for 45 days assess effect three concentrations (0.5, 1, 2 mL kg-1) in trout. β-citronellol, an important compound many respects, found 31.70% oil. It has been determined that addition feed decreases conversion rate, increases percent body weight gain, specific rate. observed values improved added groups, however, dismutase were not affected. Consequently, can be act a promoter, increase innate immunity, cheap additive juveniles.