coccidiosis??

[FruitfulFaith]

I'd actually be a little surprised if it was coccidiosis so soon, especially if they were vaccinated for it.   What is the temperature in your brooder?  Do they have a part of the brooder that consistently stays around 90 degrees or so where they can warm up?  If they are not warm enough they will simply not thrive and yes, eventually they stop eating and die.  I think you posted on another thread that these chicks were in a room of about 60 degree's with no heat lamp but near a wood stove or other heat source?  At this young age they really do need a consistent heat source at about 90 to 95 degrees where they can warm up when they need to, so maybe they aren't getting the warmth they need.

I considered that they might be too "new" for that, but the manner in which they went out is what got me. They would crawl away and stand on their own rather than with the group, and close their eyes. It seemed strange to me. And some of them died within an hour of the first exhibited behaviors, while others took over 18 hours to be pronounced dead for sure. Could that still be a normal reaction to not getting warm enough? Most of what I saw looked more reminiscent of sick animals...but I've never seen a chick die of lack of heat so I don't know how that appears. They also weren't huddling when the first chicks started to go, so it made me question if it could have been the temperature. Which is more likely?