Impact of Dietary Co-Supplementation with Schizochytrium sp. and Lavender Essential Oil on Growth, Digestive Physiology, and Intestinal and Hepatic Histology in Common Carp

Authors : Metin Yazıcı, Mehmet Naz, Yavuz Mazlum, Çiğdem Ürkü, Musa Türkmen, Kemal Dede

Pages : 748-759

Doi:10.35229/jaes.1759435

View : 39 | Download : 53

Publication Date : 2025-09-30

Article Type : Research Paper

Abstract :Abstract This study aimed to evaluate the effects of dietary supplementation with marine microalgae (Schizochytrium sp.) and lavender (Lavandula intermedia) essential oil on growth performance, biochemical composition, digestive enzyme activity, and histological parameters in common carp (Cyprinus carpio). A total of 480 fish were randomly assigned to four dietary treatment groups for 8 weeks: a control group (SL0; 0% Schizochytrium sp., 0% lavender oil), and three experimental groups supplemented with 1% Schizochytrium sp. + 0.5% lavender oil (SL1), 2% Schizochytrium sp. + 0.5% lavender oil (SL2), and 4% Schizochytrium sp. + 0.5% lavender oil (SL4). Growth performance data including final weight, weight gain, and specific growth rate were significantly higher in the SL2 group (p 0.05), protease inhibition was significantly reduced in the SL2 and SL4 groups (p < 0.05), indicating improved digestive efficiency. Overall, the SL2 group enhanced growth, survival, and intestinal structure without compromising enzyme activity in common carp, suggesting its potential as a functional feed additive in sustainable aquaculture.
Keywords : biyokimyasal kompozisyon, Cyprinus carpio, histoloji, Lavandula intermedia mikroalg, Lavandula intermedia, mikroalg

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