Mark Purdey animal feed dates back to at least 1926. In the 1970s attention was directed within MAFF to the danger that this practice would result in the spread of infectious diseases. The diseases considered were those caused by conventional viral and bacterial organisms. No consideration appears to have been given to the risk that scrapie might be recycled in sheep, or even transmitted to other farm animals. This may seem surprising. The answer probably lies in the fact that half a century had elapsed without any indication that animal feed containing ovine protein was infecting sheep or any other animal." Purdey
Alternatives to animal testing process, the EC will require full disclosure of study data, safety issues, and toxicological findings for all such additives. Within the EU animal welfare law (2010/63/EU), the principles of the 3Rs are invoked whenever toxicological test methods are necessary. Institutes and organizations that research or fund alternatives to animal testing include: International Cooperation on Alternative Test Methods (ICATM): On April 27, 2009 the United States, Canada, Japan and EU signed a memorandum of cooperation that could reduce the number of animals required for consumer product safety testing worldwide. The agreement will yield globally coordinated scientific recommendations on alternative toxicity testing