Abstract
AbstractThe purpose of this study was to investigate the dietary effects of using essential oil from sour lemon peel (Citrus limon) on growth performance, carcass composition, blood and serum parameters, and liver enzymes of juvenile rainbow trout (Oncorhynchus mykiss) exposed to deltamethrin (DMN) pesticide. Treatments with no lemon peel essential oil (LPEO) and without DMN (control), as well as four treatments with 10% of 96‐h lethal concentration of DMN were prepared with dietary supplementation of LPEO (zero, 200, 400, and 600 mg/kg). Trout juveniles (95.12 ± 0.53 g) were randomly allocated to the treatments (each with three replicates). The results showed that dietary LPEO inclusion improved fish growth parameters in the DMN‐containing treatments. The highest fat content was found in zero LPEO treatment with no DMN while it was lowest in DMN treatments containing 400 and 600 mg/kg of LPEO. Carcass protein content was the highest in DMN treatment with 400 mg/kg of LPEO. Blood and serum biochemical parameters showed statistical differences between no LPEO treatment with DMN exposure and those detected in the control fish (p < .05). Overall, the results indicate that dietary inclusion of LPEO at 400 mg/kg level can decrease some negative effects of DMN exposure.
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