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I want to emphasize what Oceanseve said. Chicks raised on wire do not develop the immunity from cocci that they need. From reading from various university/extension agent sites, I think the first week is most important.
The coccidiosis protazoa live in the digestive tract. Once it is passed through the systen in the droppings, it needs to mature for a day or two before it is then consumed by the other chicks, who will then develop an immunity to it. As long as the cocci does not get too concentrated, like it would in a dirty brooder, the cocci usually does not harm the chick. When it gets too concentrated, it can kill. And watch your brooder-raised chicks when they first join your flock for signs of cocci. They may be exposed to certain strains from the flock they were not exposed to in the brooder.
Chicks raised by mama with the flock rarely have problems with cocci as they are exposed to it from birth and develop strong immunities.
I want to emphasize what Oceanseve said. Chicks raised on wire do not develop the immunity from cocci that they need. From reading from various university/extension agent sites, I think the first week is most important.
The coccidiosis protazoa live in the digestive tract. Once it is passed through the systen in the droppings, it needs to mature for a day or two before it is then consumed by the other chicks, who will then develop an immunity to it. As long as the cocci does not get too concentrated, like it would in a dirty brooder, the cocci usually does not harm the chick. When it gets too concentrated, it can kill. And watch your brooder-raised chicks when they first join your flock for signs of cocci. They may be exposed to certain strains from the flock they were not exposed to in the brooder.
Chicks raised by mama with the flock rarely have problems with cocci as they are exposed to it from birth and develop strong immunities.