Folks the purpose of my questions was to determine whether there was a common thread among those experience a stoppage of eggs with an unknown reason. Certainly a down turn is normal but for a complete stoppage of eggs is a sign that something else may be at work.
Of course if no one really cares that's fine too. I just thought, perhaps wrongly, that it would be interesting to see whether everyone experiencing a stoppage is using the same feed, bought their birds from the same hatchery, or just had a signicant change in the coop.
So far one responder and i have a common thing in that we have the same breed from the same hathcery.