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
Super Hits (Blood, Sweat & Tears album) Super Hits (Blood, Sweat & Tears album) Super Hits is a budget compilation album by the band Blood, Sweat & Tears released by Columbia Records in 1998. This ten song collection draws four songs from each of the band's first two albums "Child Is Father to the Man" and "Blood, Sweat & Tears". Writing for Allmusic, critic Al Campbell wrote, "Super Hits samples ten tracks recorded by Blood, Sweat & Tears for Columbia Records in the late '60s and early '70s and includes the original versions of "Spinning Wheel," "You've Made Me So Very Happy" and "And When I Die."