How long do you expect bloody stools after starting Corid?

elletee89

In the Brooder
Jul 2, 2025
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First time chicken owner, flock of 8 birds is about 12 weeks old and we noticed bloody droppings on Friday. Feeling like a bit of a failure, I thought we were doing such a good job 😰

We started treating with Corid on Saturday in the water. Sunday morning, two of the girls looked all puffy - though still eating, drinking, and moving around - so we decided to go the oral drench route. Dose one was yesterday (Sunday).

My question is, how long until you would expect to see an improvement? Is it normal to continue to see blood in droppings? All I’ve read is that Corid works quickly, just not sure how quickly!

They all seem about the same today. Same two girls are puffing their feathers but they don’t look that dumpy overall. I just know it can go south in a heartbeat šŸ˜“

Our plan right now is Corid in the water for 7 days and orally for 3 days.

Also, any tips for disinfecting the run? We use wood chips so I’ve just removed them all šŸ¤·šŸ»ā€ā™€ļø
 
I'm very new to chickens so I don't have any experience with Corid and coccidiosis. But please don't feel like a failure! Coccidia is quite literally everywhere, and from what I understand, it is not if but when your flock will get it. Especially if you live in a warm and humid area that's been wet lately.

You're treating them right, and I believe the outcome is generally quite positive after Corid. Keep your head up, know that you're a great chicken parent, and good luck on a quick recovery for your flock!
 
My understanding is about 48 hours. I did have an instance where we treated with Corid for intestinal shed (which looks like small amounts of bloody tissue), and the Corid did not correct the problem so we continued to have "bloody poops". Better safe than sorry, so finish the full treatment course.

Coccidia thrive in damp conditions, so correcting any water infiltration in the run will go a long way. You can also help dry the wood chips with a bag or two of PDZ (sold at farm stores and Tractor Supply). The chickens will sample it, but it's safe for them to consume.
 
Any pics of your setup?

I don't think woodchips would be the issue. Our first two sets didn't have any issues, then we had issues with out third set, we had a lot of rain that month and turned their area into a muddy swamp no matter how I tried to keep it dry (pine chips mainly at time) and ended up losing two bc we didn't catch it soon enough. Same place we had two broods and our two sets.

It sounds you've caught it soon enough so keep with it and see it through and they'll be stronger for it šŸ’Ŗ:)

Good luck!
 
I'm very new to chickens so I don't have any experience with Corid and coccidiosis. But please don't feel like a failure! Coccidia is quite literally everywhere, and from what I understand, it is not if but when your flock will get it. Especially if you live in a warm and humid area that's been wet lately.

You're treating them right, and I believe the outcome is generally quite positive after Corid. Keep your head up, know that you're a great chicken parent, and good luck on a quick recovery for your flock!
This was such an encouraging message to get, I can’t thank you enough ā¤ļø
 
My understanding is about 48 hours. I did have an instance where we treated with Corid for intestinal shed (which looks like small amounts of bloody tissue), and the Corid did not correct the problem so we continued to have "bloody poops". Better safe than sorry, so finish the full treatment course.

Coccidia thrive in damp conditions, so correcting any water infiltration in the run will go a long way. You can also help dry the wood chips with a bag or two of PDZ (sold at farm stores and Tractor Supply). The chickens will sample it, but it's safe for them to consume.
Thank you for the info, on Friday I wasn’t sure if it was cause for concern or lining shed, but when I noticed two of them puffed up, I thought we need to treat to be safe.

Our temps dropped fast here (southern Ontario) and we did get quite a bit of rain but they land next to the coop and run is graded away from them and hasn’t been overly wet all summer but I guess it will be trial and error šŸ¤·ā€ā™€ļø
 
Thank you for the info, on Friday I wasn’t sure if it was cause for concern or lining shed, but when I noticed two of them puffed up, I thought we need to treat to be safe.

Our temps dropped fast here (southern Ontario) and we did get quite a bit of rain but they land next to the coop and run is graded away from them and hasn’t been overly wet all summer but I guess it will be trial and error šŸ¤·ā€ā™€ļø
I think trial and error sums up chicken keeping perfectly. I've got 4 bantams still living in my guest room at 7 weeks old because of coop trial and error, lol. We had it "done" only to realize some adjustments needed to be made. Then of course weather and life happened, and it got delayed. They do have a temporary outdoor run they're in every day, supervised, as it isn't 100% predator proof. The coop will be done this week, though.

Thankfully, my chickens are little! šŸ˜†
 
Do you have photos of the birds and their droppings?

I'd make sure to keep the water stations clean and see that they are drinking the mixed Corid water really well. Dosing is below in case you need it. Direct oral dosing can be given 2X a day for 3 days, this is in addition to them drinking the mixed Corid water.

Coccidiosis is caused by Coccidia which is a protozoa. There are 9 strains that affect poultry and they are found in poop and in the soil. There is no way to eliminate Coccidia from the environment, so trying to disinfect is futile. Birds can build resistance to the strains found in their environment through exposure, but it's important to treat them right away when there's an overload.

IF you are seeing no improvement, then I'd get some Toltrazuril ordered and continue with the Corid until that arrives.

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.

Direct Oral Drench instructions.
https://www.backyardchickens.com/articles/corid-amprolium-oral-drench-instructions.74391/

Toltrazuril.
https://jedds.com/products/endocox-powder?_pos=1&_sid=8d6293c29&_ss=r
 

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