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
Animal rights movement idealistic and schismatic. These reform-oriented nonhuman rights organizations direct resources to countering abolitionist claims and blocking abolitionists' access to discursive spheres. Another example of counterframing from opposition movement actors is found in Switzerland's 1998 referendum cycle, in which antivivisectionists' claims that animal research should be abolished were contested with claims that mobilized the public more. Antivivisection claims, which framed animal research as facilitating the genetic engineering of foods in hopes of seizing on public fear of genetic engineering, were countered by scientists and animal researchers, who framed vivisection as medically necessary to ensure human well-being. Animal rights movement The animal