My niece gives her hens shrimp shells uncooked which freaks me out! I cook stuff like that if I were to feed my gals it.Yes. I cook the whole thing and save the heads/claws as I eat the meat.
I also try to scissor them pretty good before feeding. Crawfish claws are pretty hard so I try to chop that up a bit.
Of course then I catch them cracking and eating snails! ??? Who knows if it will be good or bad for them.
I did a fecal sample for worms and it came back clear, so guess they are ok.