Gilthead seabream were fed diets containing Pdp11, Bacillus and date fruit palm extracts.
Skin mucus enzymatic activities, IgM and terminal carbohydrates were determined.
The expression of certain immune related genes was evaluated in the skin.
These diets altered the terminal carbohydrates abundance and enzymatic activities in skin mucus.
An important up-regulation on the immune related genes was also detected.