I have a very sick hen. She has had several stools that looks bloody, gelatinous in nature. She's weak, not eating and very thin. I brought her to a local vet who will see chickens. He's not an expert. He gave me metoclopromide and trimeth-sulfa and wished me luck. He tested some fecal matter and didn't see worms or anything. She's in very rough shape. I'm concerned that she might have coccidiosis and that I should be treating my other 6 hens as well. Is there anyway to find out? Very concerned.