There is a very simple and inexpensive test you can do to see if coccidia are present in a dangerous amount and how many different strains there are. Take random poop samples and have a vet do a fecal float test.
But since your chicks have been installed in a sanitized stock tank, I don't see how they would have come into contact with the soil. Hatchery chicks likewise do not touch soil unless the bin they were placed in at the feed store was contaminated, but the conditions for a coccidia bloom wouldn't really be present in a feed store chick tank, either.
In my opinion, you can rule out coccidiosis, bacteria in your equipment, water should be safe after all the filtering, the heat bulbs would have killed the previous chicks if they were evil. So this leaves the feed and the possibility of a virulent virus. In my opinion, the feed is far more likely to have killed so many chicks in such a short time.
I would contact the manufacturer and talk to them. Save the feed bag, don't toss yet.
But since your chicks have been installed in a sanitized stock tank, I don't see how they would have come into contact with the soil. Hatchery chicks likewise do not touch soil unless the bin they were placed in at the feed store was contaminated, but the conditions for a coccidia bloom wouldn't really be present in a feed store chick tank, either.
In my opinion, you can rule out coccidiosis, bacteria in your equipment, water should be safe after all the filtering, the heat bulbs would have killed the previous chicks if they were evil. So this leaves the feed and the possibility of a virulent virus. In my opinion, the feed is far more likely to have killed so many chicks in such a short time.
I would contact the manufacturer and talk to them. Save the feed bag, don't toss yet.
