Hello. I have a cornish x. She has a growth on her chest. She is about 9 weeks old. She is about the size a regular chicken would be at 9 weeks. Beautifully feathered with no signs of disease. Clear eyes, healthy appetite, solid droppings. Since she isn't growing super fast like the others I bought with her, I was wondering if I would be able to keep her. I wouldn't eat her since she has a mystery growth on her chest. I tried to remove air thinking it is a ruptured air sac, but there is no air. It is on both sides of her chest, so I don't think it is her crop. Thought rather than cull her, I could keep her with my layers. Anyone have any thoughts?