First of all, why is the forum changing e g g to rooster in posts? Is it an april fools joke? Mildly funny.
My chickens are also around 25 months old. They only started laying a few weeks ago. I've heard that each year, hens will take longer to resume laying after a molt.
Another observation was that my hens were thin. I suspected that switching my brand of layer pellets I gave them were to blame--the feed store had run out of my usual brand. Within a week of switching back, they were laying. But again, it could have been:
the food
the increase in daylight hours
their age
stress (we had a fox lurking around for a week or two)
After all, most egg farms cull 2-year old hens don't they? Maybe its because of their unpredictable laying habits.
I'm working on building up a multi-age flock, so I'll have older, wily snail hunters to help me in the garden, young dumb egg layers, and some in between!
April Fools Day check. Egg=E g g?