have a friend who commercially breeds chickens (chooks as we Aussies call 
them!) for meat, and they currently have a problem with Coccidiosis.

They are certified antibiotic & hormone free, but they have been using CS in 
the drinking water, they have noticed a vast improvement in the condition of 
the birds when they kill them, but they have a problem in one pen. The pens 
houses 3500 birds.

They have not entirely eradicated the problem, but I have recommended them 
spraying out the pens, but they have been reluctant because of the cost of the 
CS

Any ideas out there?

John in Australia