Bloodmeal and fish blood and bone are both good perch attractors, pike as well seem to go for the trail the stuff gives off in the water, and yes it does stink to high heaven when wetted lol! I use it on the garden and keep the odd bit for groundbait, just 50/50 with brown crumb is usually enough. Ive been thinking of trying some in a boilie mix as liver proteins seem to be used a lot thesedays. Anyone tried it before? Bloodmeal and FBB are usually sterilised at a very high temperature, it wasn't so much BSE that used to be the worry (it is now though as it survives even at high temp sterilisation according to some) it was foot and mouth that gardeners were always warned about.