Fetal bovine serum and virus, endotoxin, haemoglobin, IgG and total protein assays. Ethical questions have been raised regarding the blood collection process due to the potential suffering caused to the fetus. Although anoxia or active slaughter could be used to induce unconsciousness or death prior to serum harvesting, exposure of live unborn calves to oxygen can cause them to gain awareness before being killed, resulting in active debate about the ethics of harvesting serum. Fetal bovine serum is commercially available from many manufacturers, and because cells grown in vitro are highly sensitive, customers usually test specific batches to check for suitability for their
Blood, Sweat & Tears (Blood, Sweat & Tears album) Blood, Sweat & Tears (Blood, Sweat & Tears album) Blood, Sweat & Tears is the second album by the band Blood, Sweat & Tears, released in 1968. It was commercially successful, rising to the top of the U.S. charts for a collective seven weeks and yielding three successive Top 5 singles. It received a Grammy Award for Album of the Year in 1970 and has been certified quadruple platinum by the RIAA with sales of more than four million units in the U.S. In Canada, it enjoyed four runs and altogether eight weeks at No. 1 on the "RPM" national