Hello,
Well, broody hen Ms. Clessie is now setting on 10 eggs, look great so far! (I had a chance to run inside with the eggs and candle while she was off the nest.) She is due to lock herself down on Sunday....
Meanwhile, I checked the eggs in the bator, day 8 and 19 eggs holding well....excited!

Hoping Ms. Clessie will take these as well since they will be about 1 week or so behind hers.
Also, yes, yes....any doubt, do the Corid...it's a bit of work but much better than seeing them die off 1 by 1, usually by the time you see blood, it's pretty bad, and just a matter of time before the others succumb.
This happened to me with my Easter hatch, didn't think I'd be able to get them through it. (The weather was hot, then cold, then rainy, then hot and so on and on. Perfect breeding ground for the protozoan.) And of course, Mama hen was teaching her babies how to scratch and hunt food...so cute, but lost 3 within 48 hours before I saw a spot of blood.
Brought them (without Mama hen

) to the porch in a brooder box under a heat lamp, until they had time to respond to the meds and start recovering. I had them on medicated feed, but they didn't have time to build the immunity and the soil conditions caused the overload of the protozoan.
I put them on non-medicated feed, placed Corid in their drinking water, mash/food and had to syringe a few that were to weak to eat. They stand (can't sit because their intestines are ulcerating) in a hunched position and their feathers literally twirl backwards in all kinds of directions, then start losing the feathers. Such a painful, bloody disease for them...

.
It took ours a few weeks to recover. I treated my whole flock, even the adults at the time just to make sure to try and break the cycle.
Then turned the soil, ordered Oxine (without the Activator...kills Parvo), and diluted the soil, turned it again, applied the Oxine again and let it dry.(1/8 teaspoon per gallon of water. We used 5 gallon bucket and splashed/pour in on the ground)
You can use bleach, but it doesn't kill the cocci...but will knock them back a little....About 2 to 3 weeks later when all the chicks quit bleeding and were eating and drinking...I put the chicks back out in the pen and they thrived along with our flock.
Our weather has almost been a repeat lately, except just lots and lots of rain and hot weather...and mosquitos. We have spent the last 2 weekends going through our pens, cleaning and applying another round of Oxine to the soil, along with bleach from cleaning hen boxes, roosts, etc.
I am hoping that we never have to deal with it again....but, to be sure, I will start the chicks this time with non-med food, use the Corid in their drinking water/mash just to be safe. We plan to let them stay outside in a pen with Mama hen, but off the ground for at least a week or 2.... this time so hope we've done enough. She will be allowed on the ground and will slowly introduce the soil to them when she's coming and going inside their pen.
Hopefully our weather will cool off and dry out and we will not have to go through this any time soon again. I'm just doing this extra because I know it can happen and I wanted to treat our soil once more, prior to placing chicks out in the runs, etc. Afterwards, we'll just probably treat the soil in the spring once a year, and chicks should be OK to build natural immunity....we'll see how the weather behaves.
Note: Med feed only prevents/builds immunity to 2 of the protozoans. It can take 2 to 4 weeks for chicks to build immunity.
Corid address all 9 that are found in the soil.
Corid Powder: The dose is 1/2 teaspoon per gallon of water, mixed fresh daily, give it to them in their drinking water, in their mash if they will eat and/or via dropper on the side of their beak.....main thing is they are dehydrating, get/give as much as they will take... for 7 days.
Corid Liquid: The dose is 2 teaspoons in a gallon of water. Follow above instructions.
Also, do Not give Sav A Chick, Electrolytes or Probiotics until after treatment is completed. Cocci thrives on Thiamine which these products provide. After they have stopped bleeding... and they are eating, drinking, squatting/laying down again, give the above and feed them on the non-medicated food, or go back to the med food...you can't overdose on Corid. Also chicken/beef liver helps rebuild their iron. Just giving them time and strength to build an immunity to Cocci.
Hope this is helpful to someone...Chirp