You gotta be very careful about not allowing them to over eat or lay down and eat or drink. I always use hanging feeders and waterers because they need to stay active and work for their food. You also need to remove hanging feeders at dusk and replace in the morning. Feeders and waterers should be hanging at the heighth of their backs. Very important, they will eat until they break their own legs. They can easily eat themselves to death. I have 25 cornish and they only get about 5# of 24% protein poultry grower mash a day and some cracked corn scratch if its not to hot out. Yours may be over eating and they have to keep drinking to keep processing their feed. Try to implement a similar feeding schedule and you will notice the birds will get more active, the water consumption will decrease, coop will be cleaner,breasts even out and the end result will be better meat. The bumps on their back is it the wing joint? Birds can be huge with itty bitty wings and wing joints that look kinda gross when they're molting. Lol. Good luck with your meaties.
