I have been buying meat turkey culls from a high school student that will be showing this year. We are planning on slaughtering the turkeys when they get older, but we noticed a problem with 4 of them when we picked up our last batch. They have large fluid-filled sacks on their breast just under the skin. What is it? Should I try to Lance them before we slaughter to try to give them time to heal, or should I let them be and see if they heal on their own? If they don't heal, will the meat be affected?