Korean Journal of
Veterinary Service

This study aimed to assess and compare the immune response in beagle dogs following the oral administration of a 5% propolis liquid concentrate and a 1:1 mixture of propolis and wet pet food. To assess the immune response, cell counting kit assays, cytokine enzyme-linked immunosorbent assay for TNF-alpha, IFN-gamma, and IL-1 beta, and flow cytometry were conducted. Propolis was administered at a concentration of 5% and a dosage of 20 g, with the beagles monitored over 8 weeks. Three beagles served as controls, while four beagles each were assigned to the propolis-only group and the propolis and feed mixture group. The results demonstrated that, regardless of its form, propolis enhanced immune responses in beagles. These findings suggest that administering of a mixture of propolis and wet pet food may increase the palatability of propolis for beagle dogs while maintaining its immune-enhancing effects.

Keywords: Propolis, Beagle, Immune response, Cytokine, Safety