I have two chickens that have cocci. Both hens are less than 6 months old.
Can you post photos of the pullet and their poop?I noticed one of my golden laced wyandotte's looking all cocci like about a month ago. I have been treating her with corid orally and putting it in the drinking water. She has been through a spell where she gets better then worse, better and worse, better and worse.
What dose of Corid are you giving and for how long?
At what age did you begin feeding layer feed to the pullets?
Liquid Corid dose is 2tsp or Powdered Corid Dose is 1 1/2tsp per gallon of water given for 5-7 days as the only source of drinking water.
Do not add any extra vitamins/electrolytes that contain B1(Thiamine) to food or water during the course of treatment.
If you have been giving the correct dosing of Corid and you still feel that Coccidiosis is the problem, you can treat them with a Sulfa Antibiotic or Toltrazuril to see if those help.
https://jedds.com/products/endocox-powder?_pos=1&_sid=94d36a361&_ss=r
https://jedds.com/products/esb-3-jedds?_pos=2&_sid=124714fa2&_ss=r
Possible...but most strains of Coccidia that affect chickens do not affect Guinea Fowl.I had my guinea keets in a box with the wyandottes when they were chicks. I'm thinking the cocci came from the wyandottes.