Hey y'all....just got off the phone with a professor at the Illinios University Dept of Poultry Science. I had sent an email message to the manufacturer of the chick starter I use concerning my recent loss of chicks due to coccin and they had him contact me.
Gonna pass along some quick info so that perhaps y'all will avoid what I didn't.
1. Cocci becomes immune to coccidiostats (like aprolium) that are in chick starter over a period of time. He said amprolium is one of the oldest coccidiostats and that many cocci strains have developed an immunity to it.
2. It CAN be spread by any number of things outdoors....NOT just from contact with the ground. (insects, wild birds, flies, dust, etc, etc)
3. Periods of warm, humid weather cause cocci to grow much more rapidly
He suggested to me that I "switch" starter products and thus coccidiostats every 2 years. The starter I have been using contains Amprolium. He suggested a switch to a product with Coban (monensin) for 2 years. He said several different manufacturers use it, some in their wild bird starter. After 2 years, he said to switch back to amprolium, etc, etc
Said to keep Corid (aprolium concentrate) on hand for emergency use, but to use for emergencies only when using Coban.
Hope this was short enough to be understandable....