I know! But then you worry about selling fertile eggs or chicks. My first six I got from a hatchery so I imagine they were vaccinated. The rest I hatched myself or got from a farm a county over. She hatches her own but has gotten several specific breeds by having eggs mailed. This leaves endless possibilities. Seems no way to guarantee your chickens are healthy unless you have them all tested and keep them in separate bubbles immediately afterwards so that if the results are good they'll stay that way.![]()
There are a few diseases that can be transmitted through hatching eggs, but most of the chicken diseases cannot be. So eggs are a bit safer than chicks, and especially safer than older chickens (that have had more time to catch things.)
You might look into the NPIP (National Poultry Improvement Plan).Too bad there isn't a practical way for small flock owners to test all regularly.
https://www.aphis.usda.gov/aphis/ou...ide/poultry/national-poultry-improvement-plan
That does involve some regular testing for certain diseases (not all diseases, but some.) From what I've read, it seems to be administered at the state level, so it might be a bit different in some states than others. Any time you see people talking about NPIP status, or having an NPIP number, that is what they are referring to. At least some states require it if you want to ship eggs or chicks across state lines (I'm not clear on whether just some states require that, or all of them.)
A number of people on this forum have their flocks NPIP certified, even with small flocks, so that is definitely possible.
I've read that the program was originally set up to deal with some very nasty poultry diseases, that we pretty much never see now (so presumably it did what it was supposed to there.)