4.6 Article

Unveiling the Effects of Fennel (Foeniculum vulgare) Seed Essential Oil as a Diet Supplement on the Biochemical Parameters and Reproductive Function in Female Common Carps (Cyprinus carpio)

Journal

WATER
Volume 15, Issue 16, Pages -

Publisher

MDPI
DOI: 10.3390/w15162978

Keywords

Cyprinus carpio; fennel extract; phytoestrogen; reproduction

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The present study investigated the effect of Foeniculum vulgare essential oil on the health of common carp. It was found that an oral administration of 200 mg/kg of F. vulgare oil significantly improved the weight and growth rate of the fish, while higher doses of 600 mg/kg had negative effects on blood enzyme levels. Overall, adding an appropriate amount of F. vulgare oil can enhance the reproductive and general health of the fish.
The present study aimed to investigate the effect of Foeniculum vulgare essential oil on the health of the common carp (Cyprinus carpio). A total of 120 healthy fish were provided with feed containing 200, 400, and 600 mg/kg of F. vulgare oil for 60 days. Findings revealed that the oral administration of 200 mg/kg of F. vulgare oil significantly increased final weight, weight gain, and specific growth rate compared to the control group (p < 0.05). Plasma biochemical enzyme levels remained unchanged in 200 and 400 mg/kg treatments, whereas they were found to be significantly increased in treatments with 600 mg/kg. Although no significant alterations in glucose, triglyceride, and cholesterol levels were observed, the treated groups exhibited significant increases in total protein, albumin, globulin, and creatinine levels. Results also indicated significantly decreasing levels of glutathione peroxidase, whereas superoxide dismutase activity increased. The gonadosomatic index showed notable improvement in the 200 and 400 mg/kg groups. Furthermore, plasma concentrations of estradiol and testosterone were significantly affected by doses of 400 and 200 mg/kg. Findings suggest that, following the administration of F. vulgare extract, the reproductive and general health of the fish appears to be improved. Nevertheless, it is recommended to supplement fish diets with up to 200 mg/kg of F. vulgare extract to improve their reproductive and general health. Concentrations above this limit can potentially cause harm.

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