Kja.....dried lungs...hadn't heard of those being used before. What do you do to get those? Have lots of piggies to slaughter in Feb and a whole pack of keen dogs willing to try anything!
we ask for them on cutting list for pigs, sheep, goats & cattle they come with the liver, kidneys etc under ofal.
if you dont usually get them automatically ask for the lights next time dogs love them, i have brought them from pet shops if i run short although if dried correctly they last ages.
one slaughterhouse we use often sells dried pigs ears and lungs as pet treats i should think they get them from people that dont ask for them back.