胎牛血清是指胎牛血液凝固后，去除血漿中纖維蛋白原及某些凝血因子后分離出的淡黃色澄清液體，它是肉類加工業(yè)的一個(gè)副產(chǎn)品。
胎牛血清是細(xì)胞培養(yǎng)中用量較大的天然培養(yǎng)基，含有豐富的細(xì)胞生長(zhǎng)必須的營(yíng)養(yǎng)成分，具有極為重要的功能，一般添加比例為：5-20%。血清中含有各種氨基酸、維生素、無機(jī)物、脂類物質(zhì)等這些維持細(xì)胞生長(zhǎng)必須的營(yíng)養(yǎng)物質(zhì)，也含有胰島素、氫化可的松、地塞米松、bFGF、EGF、PDGF、轉(zhuǎn)鐵蛋白等可促進(jìn)細(xì)胞生長(zhǎng)的激素、生長(zhǎng)因子及結(jié)合蛋白。此外，血清還有解毒、緩沖、抑制蛋白酶活性等作用保護(hù)細(xì)胞不受傷害。
依科賽胎牛血清均采自非疫區(qū)的健康牛，經(jīng)無菌采集、批量混合、3級(jí)100 nm過濾器過濾分裝而成，不含支原體和BVDV、PI3、IBR、BTV等牛源病毒。
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