ImmuCell Corporation, an animal health company, develops, manufactures, and sells products that enhance the health and productivity of dairy and beef cattle in the United States and internationally. It operates through two segments: Scours and Mastitis. The company offers First Defense, an orally delivered scours preventive product for calves with claims against E. coli, coronavirus, and rotavirus; and Tri-Shield First Defense, a passive antibody product for the treatment of E.