Thymol is a natural monoterpene phenolic substance,which has many physiological functions such as antibacterial,antioxidant and anti-inflammatory.As one of the main active ingredients of thyme essential oil,thymol can improve the immunity of animals and the quality of animal products.In the paper,the main physiological functions of thymol and its potential mechanism of action are reviewed,and combined with the latest research results of domestic and foreign scholars,in order to better provide theoretical basis and guidance...