Effect of herbal immunomodulator on immune organ and immunological parameters in Giriraja birds

The use of natural feed additives as substitutes for antibiotic in poultry production has become an area of great interest. Medicinal plants or herbs consists of many pharmacologically active chemical compounds which have antimicrobial activity, antioxidant activity, antifungal activity, antiviral activity, anti-inflammatory effects as well as immunomodulatory properties (Toghyani et al., 2015).