I have processed quite a few batches of dual purpose chickens before, and never had any taste bad. This batch is horrible! The smell when it is cooking, and the taste when it's done, is reminiscent of poop - it's that bad. It's not the "spoiled chicken" smell and taste, I've smelled that when I've left chicken in the fridge too long. This is a very specific poop smell. I didn't do anything different with this group. It was 10 hens, several breeds, laying age but mostly egg-eaters, that had been raised from chicks on organic feed. They were free on Craigslist because of the egg-eating, but I saw their living conditions and they were good. The feed bags were really organic ones, their run was probably 300 sq feet, and they were the healthiest-looking bunch of chickens I'd seen in a while (shiny feathers, no parasites, etc). I kept them for 8 days in my normal conditions to weed out the ones that did not eat eggs, butchered the others the same as normal. Quickly, sanitary conditions, skinning them and keeping only the breasts and legs, the meat spent one overnight in an ice cooler full of ice water, and then individually frozen in the freezer. I've tried several pieces from different packages so far, thinking maybe it was just one bird that tasted awful - but nope, it's all of them. Any idea what happened? This whole batch will be dog food now, and I'd hate to lose any more next time.