Cinnamon powder has the functions of flavor and food attraction, drug health care, feed anti-mildew, and growth promotion. It has strong antibacterial activity and is powerful against Staphylococcus, Escherichia coli, Shigella, Streptococcus, Salmonella enteritidis and Vibrio cholerae. The bactericidal effect, and have the effect of anti-influenza virus, improve the survival rate; appetite and spleen, Spleen Qi, eat a mild stimulating effect on the gastrointestinal tract, can promote the secretion of digestive juice, excitement of gastrointestinal smooth muscle, accelerate gastrointestinal Peristalsis improves intestinal mucosal function, promotes absorption of nutrients, eliminates intestinal gas accumulation, and can significantly improve feed palatability and increase animal feed intake. It can not only significantly improve the body's immunity, but also reduce stress response. Promote its growth; Add less, low overall cost; Replace antibiotics, hormones, no residue