I am new to meat chickens. We have the cornish cross. I have one of the 26 that is a little amaller than the rest and acting like he is dying. Just laying on belly not interested in eating so we culled him and processed him. Now his heart (remember i am no doctor) looked like it had a tiny bit of fluid in sac around it. Meat looked fine. Should i be leary because i dont know for sure why he wouldnt eat or walk around? How do you know when NOT to eat meat that may be diseased?