I'm not one to jump on the coccidiosis bandwagon quickly but after rereading the first post, that is my first guess. 1 week to 2 months is the right age group, the symptoms match and you said it has been wet there.
I'd start the Corid treatment immediately but take a dead bird and send it to your poultry lab to know for sure. They'll likely send you a Fed-Ex label for shipping.
Iowa State University Veterinary Diagnostic Laboratory
1800 Christensen Dr.
Ames, Iowa 50011-1134
Phone: 515-294-1950
Prophylactically treating birds by guessing at antibiotics, etc. can negatively affect the lab results.
Something in stools of other animals, especially cattle, hogs and horses being a cause is extremely unlikely. Chickens have been picking in the feces of farm animals for eons - as long as humans have been keeping livestock.
I'd start the Corid treatment immediately but take a dead bird and send it to your poultry lab to know for sure. They'll likely send you a Fed-Ex label for shipping.
Iowa State University Veterinary Diagnostic Laboratory
1800 Christensen Dr.
Ames, Iowa 50011-1134
Phone: 515-294-1950
Prophylactically treating birds by guessing at antibiotics, etc. can negatively affect the lab results.
Something in stools of other animals, especially cattle, hogs and horses being a cause is extremely unlikely. Chickens have been picking in the feces of farm animals for eons - as long as humans have been keeping livestock.