i stick thier butts under warm running water, and sqeeze the little chunks in different directions. i will give you a warning though so you dont go lossing your mind like i did... only get whats near the vent. i found what i had thought was some droppings that my newest had sat in, and it turned out to be a bit of yolk sac that didnt completely obsorb into her navel, and i ended up tearing the whole thing out. shes doing fine now after a little surgery, but for being new and having a big bloddy mess, i was lossing my mind...so you know, if it ever happens, i just snipped off the rest of the sack, smeared her with some iodine and anti biotic ointment, and seperated her, and now shes doing completely fine. just make sure you dont use anything that ends in "caine" cause it will kill them.