欧美mv日韩mv国产-国产午夜一级片-一区二区在线 | 国-韩国无码一区二区三区免费视频-黄色a免费-欧美黄色大片免费观看-人人综合网-国产成人a在线观看视频免费-国内精品久久久久久久影视-国产老头和老太xxxx视频-高h放荡受浪受bl-国产又爽又黄又不遮挡视频-国产偷国产偷亚洲高清人乐享

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.