I'm thinking of vaccinating my next batch of meat birds for cocci. I want to keep my birds "natural" without any chemicals, and my understanding is that a vaccination is nothing more than dead or dying cells of what you're vaccinating against- not any chemical or antibiotic. If that's the case, it seems as though vaccinating would be the more "natural" way to go as opposed to chemically medicated feed. "Organic" meat can be vaccinated, not medicated, correct? I guess what I'm asking is that is my line of thinking correct in that medicated feed introduces chemicals into my meat, whereas vaccination just helps them build up natural immunities to cocci?