This product is a serum-free medium for PK-15 cells, a chemically defined medium specifically designed for high-density culture of porcine kidney epithelial cells (PK-15) and production of porcine-derived viral vaccines. Its core formulation precisely mimics the unique adhesion growth and viral replication metabolic requirements of PK-15 cells, optimizing key nutrients and energy metabolism pathways. This effectively supports efficient cell expansion and serves as an ideal replication vehicle for pathogens such as porcine reproductive and respiratory syndrome virus (PRRSV) and porcine epidemic diarrhea virus (PEDV).