In normal laboratory settings, this would imply that a scientist wishing to perform a cardiac puncture on a bovine fetus for serum harvest using the procedure described above, must consider anaesthesizing the fetus somehow before the puncture. This a applied ethics, as it is normal that scientists err on the side of caution wherever animal suffering may be involved, not on the side ignorance or desinterest. This is apart of the question, whether man has the right to use animals at all for human interests. This represents an ethical problem, which sheds another light on its use in so-called 'alternative' methods replacing 'direct' animal experiments. Most people oppose to hurting or using animals for the purpose of e.g. make-up, tobacco and toiletry research.
Blood sampling is considered a procedure in most Western countries.
A more open FBS-seller says that bovine fetuses would be or have been bred specifically for the purpose of harvesting their blood in some central European countries. Animal welfare in cell culture. As this is the first time this issue has been touched upon in a scientific manner, a workshop would be the proper event to come to conclusions regarding the animal welfare aspects of this form of unborn animal use.