At GenDEPOT Fetal Bovine Serum is collected aseptically from the unborn fetus of Adult Bovine brought to slaughter. The serum is separated aseptically from the blood of the fetus which is allowed to spontaneously clot. The raw serum is stored frozen at -20°C or below unit processed by aseptic filtration. 100% of the serum is collected from USDA licensed abbatoirs loacted within the US.The nimals are inspected by a licensed veterinarian pre and post slaughter and are certified free of diseases of clawed animals. The sera is kept under quarantine in a USDA approved facility until tested and released for sale by USDA. Material is processed in an FDA registered facility under cGMP.