Quote:
Originally Posted by
R_Chickens 
What about duramycin or 1st day Marek's vaccination?
We have egg layers on the farm, too. Close, but won't be mingled.
- JC
I have birds that are egg layers (not a egg laying breed but I keep hens longer for eggs) and I still don't use the meds or vaccinations. I think the only time I would consider this is if it was a pet or a bird I planned on keeping for more than a few years. Our birds are here for up to two years only. My turkeys also coop and share pasture together with chickens. This is suppose to be a HUGE no-no for many diseases. I have only had one bird get the blackhead - I wormed him - he healed - and then we ate him!
~ on a side note ~... in my obsessive compulsive nature... Concerned about my "different pratices" I got checked for intestinal parasites after living off my birds for two years that had no vaccinations and were never wormed.
I'm clean! 
Embarassing!! But I thought this might be some good information to share.
Just cook your meat. I use a pressure cooker so it doesn't dry it or use high temps as this is suppose to be healthier. Health is the WHOLE reason I am doin' this. I know it's cheaper and a lot less work to buy chicken from the store.
Good luck and just do what you feel right about. Everyone does it different for different reasons! 
It wouldn't "wipe me out" if my birds got sick. I am willing to risk it to not injest man-made chemicals in my animals.
I have had cancer so my soap box I stand on is a little taller for personal reasons. 
I also plant a LOT of extra stufff in my garden each year for my birds. It cuts down on feed costs and I think real food is better than bag feed.
I don't know ANY human who gets 100% nutrition. I don't think my birds require it either. Some days they get cucumbers and beans until they can't finish. I feel good about that!! Imagine how much squash comes off one plant! Chickens love it!! I prefer to think of bag feed as a suppliment on my farm. (mostly because I don't know where the stuff comes from that is in it.)
I got off the subject there - I'm a little mad crazy happy about what I do here for myself and my birds.
Mostly because - so far - it has worked!