日韩中文日韩欧美在线观看,亚洲人成网站999久久久综合,精品无码三级在线观看视频,亚洲一区爱区精品无码,亚洲第一AV无码专区,亚洲s久久久久一区二区,国产免费丝袜调教视频,国产在线视频一区二区三区,亚洲免费毛片,国产三级裸体视频无码

Triple filtered through 0.1 μm filters. Each lot of fetal bovine serum is tested for sterility and for the ability to support the growth of several different cell lines using both sequential growth curves and plating efficiencies. Fetal bovine serum is manufactured from fetal bovine blood collected in USDA-inspected abattoirs located in the United States.

Sterility tests are performed on each lot of fetal bovine serum using current USP and EP methods. Specific tests for contaminants are listed below in the Specification Certificate.  ATCC also checks each lot for its ability to support the growth of several different cell lines. Additionally, this lot of serum is tested for its ability to support the growth and differentiation of embryonic stem (ES) cells. Plating efficiency, colony morphology, and the expression of at least five markers of differentiation are determined for undifferentiated cells and cells induced to form embryoid bodies (EB) through full differentiation. The results are compared with cells grown with a control lot of serum.

Origin
This fetal bovine serum is manufactured from fetal bovine blood collected in USDA-inspected abattoirs located in the United States.