Some look like they have blood in them, and the others are really runny. The chickens have also not been eating hardly and of their food which just started a couple days ago, they are also acting a little lethargic. They are Light and Buff Brahma hens I just got them this spring in April and starting laying about a little over a month ago. I have not had any problems with them before, although they sometimes just lay an egg sack but no shell which I though was pretty normal since they haven't been laying real long.
I agree, I'd go ahead and treat them with the Corid, but they are 5months old so should have theoretically built resistance to the Coccidia that is found in their environment.
I'd also consider deworming them, more info below.
You are also seeing soft shelled egg. While it's not that uncommon in new layers, the soft shells along with lethargy, the bloody poop, etc. is concerning.
What do you feed including treats and do you provide oyster shell free choice. Do you offer any supplements or additives to the water or feed?
If you know which pullet is laying soft shelled eggs, then I'd give her 300mg Calcium Citrate+D3 once daily for a week to see if that helps with shell quality.
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.
To treat most worms that poultry can have except for Tapeworm you can use Safeguard (Fenbendazole) or Valbazen (Albendazole). Both are given orally by weight; they do not mix well with water.
Safeguard 10% Liquid Goat Dewormer or 10% Equine Paste dose is 0.23ml per pound of weight given orally once a day for 5 days in a row.
---OR---
Valbazen dose is 0.08ml per pound of weight given orally once, then repeated in 10 days.
Here's how to give oral medications:
https://www.backyardchickens.com/ar...dications-to-all-poultry-and-waterfowl.73335/
