The invention discloses a low-serum culture medium for high-density
suspension culture of BHK-21 cells and an application of the low-serum culture medium in proliferation of FMDVs (
foot and mouth disease viruses). According to researches on the
metabolism level and mutual adjustment of nutritional substances such as glucose and the like in the growth process of the BHK-21 cells, the low-serum culture medium for individual BHK-21 cells is provided and comprises an
amino acid part, a
vitamin part, a balanced salt part and other additive parts. The culture medium is used for high-density
suspension culture of the BHK-21 cells, the effective
utilization rate of the nutritional substances by the cells can be greatly increased, the concentration of
metabolism byproducts is reduced, and accordingly, the
cell culture efficiency is improved; besides, the BHK-21 cells cultured by the culture medium have increased sensitivity for different serums of animals suffering from FMDV, the content of effective antigens 146S of the viruses is substantially increased, the purposes of
high cell growth efficiency,
cell growth
controllability and minimization of the concentration of the
metabolism byproducts are achieved, the production efficiency of biological products is higher, the production cost is lower, and the low-serum culture medium has remarkable
economic benefits.