Vaccination of older birds....

[grnidone]

I just bought 12 hens that are 8.5 months old. Then, I learned the breeder doesn’t vaccinate because “some of my clients want to eat them and I want them to be clean.”

*sighs*

So, can I still vax these birds? If so, what do I need to get and how do I do it?

thanks.

 

[rosemarythyme]

I believe vaccinations must be done very soon after hatch for them to be effective.