Dietary Olive Leaf Extract Differentially Modulates Antioxidant Defense of Normal and -Infected Common Carp () via Keap1/Nrf2 Pathway Signaling: A Phytochemical and Biological Link.

Olive leaves are an immense source of antioxidant and antimicrobial bioactive constituents. This study investigated the effects of dietary incorporation of olive leaf extract (OLE) on the growth performance, hematobiochemical parameters, immune response, antioxidant defense, histopathological changes, and some growth- and immune-related genes in the common carp (). A total of 180 fish were allocated into four groups with triplicate each.