Licorice root (Glycyrrhiza glabra
) is beneficial for birds with gastrointestinal (GI) problems, liver disease, viral infections, and cancer. It has been used for this purpose for centuries in various traditional medicines.
The main chemical component is glycyrrhizin (or glycyrrhizic acid), which has a long history of use in ethnoveterinary medicine. It is good at healing GI tract ulcerations and reducing the gastric acid secretions while producing anti-inflammatory effects similar to corticosteroids. In addition, several studies have also indicated that it possesses anti-viral properties.
: G. glabra
possesses some antiviral activity in vitro
toward a number of viruses---including Newcastle disease virus (NDV)
in chickens and Duck Hepatitis Virus (DHV) in ducks. In a study conducted on 40 day-old white Pekin domestic ducklings, treatment with glycyrrhizin alone or with DHV vaccine demonstrated to be an effective immune system booster and had an antiviral effect against DHV.