Abstract
Chicory (Cichorium intybus) is a perennial herb that belongs to the
Asteraceae family. Certain species are grown and used as fried, dry salad leaves, roots,
or chicons as a substitute for coffee additives. It is also cultivated as forage that can be
used in animal feeding. In addition, chicory has significant effects on animal and
human health and has various biological activities, such as immunostimulant,
antimicrobial, antioxidant, hyperlipidemic, anti-inflammatory, and antidiabetic activity.
Chicory extracts protect the liver by lowering the levels of liver enzymes, e.g.,
aspartate aminotransferase (AST), alanine aminotransferase (ALT), and alkaline
phosphatase (ALP). The chicory plant plays a key role in protecting hepatocytes and
other liver cells. It is used as an antimicrobial agent in vitro and in vivo against certain
pathogenic bacteria species. Chicory improves immunity and feed efficacy by reducing
pathogenic microorganisms in the gastrointestinal tract. Cichorium intybus roots were
also used to alleviate slight intestinal disturbances, including the sense of flatulence,
full abdomen, transient appetite loss, and indigestion. This chapter describes the role of
chicory plants in promoting growth when used as feed additives in poultry feed. It also
explains the mechanisms of action of chicory extracts and their role as a liver protector
for poultry.