FBS orFCS, a part of blood plasma that is, after coagulation, the blood that remains in during this process, proteins, plasma fibrinogen conversion to fibrin in the blood clot remains. FBS from the circulatory system, closed-vein thrombosis of the fetus cows in a slaughterhouse the preparation. This serum full consumption of serum in cell culture is because the amount of antibodies it is at the lowest level andthe amount of growth factors it is very likely that this is the flexibility for use in a variety of fields to it. proteins and albumin bovine serum ( BSA ), The main compounds, FBS make up. Environment of protein-rich FBS, retaining and durability of the cells cultivated in culture environment, and increase the growth, division and survival of cells.