Fetal bovine serum the harvesting of blood from the bovine fetus after the fetus is removed from the slaughtered cow. The blood is collected aseptically into a sterile container or blood bag and then allowed to clot. The normal method of collection is cardiac puncture, wherein a needle is inserted into the heart. This minimizes "the danger of serum contamination with micro-organisms from the fetus itself, and the environment". It is then centrifuged to remove the fibrin clot and the remaining blood cells from the clear yellow (straw) colored serum. The serum is frozen prior to further processing that is necessary to make
Blood, Sweat and Tears (album) Blood, Sweat and Tears (album) Blood, Sweat and Tears is the fifteenth album by singer Johnny Cash, released in 1963 (see 1963 in music). It is a collection of songs about the American working man. This includes "The Legend of John Henry's Hammer" and "Busted", the latter of which would become a single. Both would also be performed by Cash during his famous 1968 concerts at Folsom Prison and be included in the 1999 extended reissue of the album, "At Folsom Prison". The album was included on the Bear Family Records box set "Come Along and Ride This Train". Additional