Yes they do
Oh good. I bought my first ever chicks from a feed store in vacaville. Well a couple of weeks ago one came down with symptoms that could be Mereks. I called the store to see if they vaccinated for Mereks and the girl said no but it's only 0.12cents. I was so upset with them. I will never go back. Now l have a closed flock and can only ever have chicks vaccinated for Mereks. It's good to know about concord feed.