Young birds all getting sick

[CWhite67]

I am stumped. There is something going through my grow out and causing my birds one by one to get ill and to the point I've culled three so far. They start acting dopy, balled up, tail down, sleeping alot, to the point of not eating or drinking after its advanced. 2 of the 3 so far have gone off their feet and cannot stand anymore, one foot stuck out. I have treated them with corid, but my problem is none of the vets in my area will deal with chickens so I'm screwed that way and i've raised birds for 11 years now and haven't run into this before.. I could really use some help, thanks in advance!

I should add, it started with just my speckled sussex, now its spreading into my marans and chanteclers, they're all together in the grow out pen.

 

[Eggcessive]

My first thought was coccidiosis. Symptoms are lethargy, puffed up/hunched appearance, runny poops with mucus or blood, and not eating. But Mareks, mold poisoning in feed, getting into some sort of toxin, could all be possibilities. How old were they when they were getting sick? If you lose another, send the body (kept cold, nit frozen,) to your state vet for a necropsy to look for a cause of death. Sorry for your loss.

 

[CWhite67]

My first thought was coccidiosis. Symptoms are lethargy, puffed up/hunched appearance, runny poops with mucus or blood, and not eating. But Mareks, mold poisoning in feed, getting into some sort of toxin, could all be possibilities. How old were they when they were getting sick? If you lose another, send the body (kept cold, nit frozen,) to your state vet for a necropsy to look for a cause of death. Sorry for your loss.

So was mine so I put them on corid for 5 days. Culled one yesterday, now I’m noticing two more looking off today. These birds would’ve started at 1.5 months old now going on to 2.
Do you think this could be brought on by worms? Also I found a abnormal pile of feces today.

 

[rayrose]

Sounds like Mareks