Dietary oregano essential oil improved the immune response, activity of digestive enzymes, and intestinal microbiota of the koi carp, Cyprinus carpio

By R. Zhang, Xubo Wang, Lei Liu, Y. Cao, H. Zhu. 2020

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Abstract The objective of this research was to evaluate the effects of dietary oregano essential oil (OEO) on the non-specific immunity and intestinal bacterial community of Cyprinus carpio (C. carpio). We randomly assigned 300 fish to one of the four treatments: basal diet (0 mg/kg OEO, control), OEO-L (basal diet plus 500 mg/kg OEO), OEO-M (basal diet plus 1500 mg/kg OEO), and OEO-H (basal diet plus 4500 mg/kg OEO). Blood and intestinal samples were collected at the end of the experiment to investigate the immune response, digestive enzyme activity levels, and intestinal microbiota. Dietary supplementation with OEO significantly increased the levels of lysozyme (P

Subfields: Aquatic Science, Immunology, Plant Science

View Paper: https://www.semanticscholar.org/paper/4cbcee5c1645e4c07bcbdf9a6ed9b20a9c9fd8d1