In many climates the environment isn't harsh enough to kill the oocysts, which can lay dormant in the soil for many years. No ammount of pasture rotation or cleanliness in the pen will negate this fact.
Two things spring to mind:
1) Sounds like coccidiossis to me, too. But have you sent a fecal to a vet? It costs me about $10 and they can also identify any other parasite issues you may also be unknowingly battling.
2) It sounds like you may be treating the cocidiossis only to the point where the symptoms are no longer overt; but the infection is probably still present. I'd try lengthening your treatment cycle.
Finally, if your birds have coccidiossis, but aren't sick, then don't treat. A part of this natural resistance will be passed along to their offspring.
Two things spring to mind:
1) Sounds like coccidiossis to me, too. But have you sent a fecal to a vet? It costs me about $10 and they can also identify any other parasite issues you may also be unknowingly battling.
2) It sounds like you may be treating the cocidiossis only to the point where the symptoms are no longer overt; but the infection is probably still present. I'd try lengthening your treatment cycle.
Finally, if your birds have coccidiossis, but aren't sick, then don't treat. A part of this natural resistance will be passed along to their offspring.
