I have found that if I put the whole chicken in my crock pot and let if cook for at least 12 hours...all but the 4 largest bones are soft enough to run through the blender. The largest ones are soft enough that I can squeeze/mush the ends off and squeeze out the middles as well. While cooking I add however many eggs I have available. I break them but cook the shells as well. These will also run through the blender well. While blending, I add 2 frozen weanling size mice each time I run a new batch through. Again, these blend down to just "soup" and the non mice eating ferrets don't realize I have tricked them! Jane [Posted in FML 7467]