Hope this helps ...Thanks for the replies, but that answer is not sufficient. A chicken keeps laying eggs because humans take the eggs away, if a chicken is allowed to lay continuously it will eventually stop - is this not correct?
First I'm not sure of your question but I will take a stab at it. Not all chickens will go broody ... (or make a clutch of eggs to hatch) It has been bred out of them. Then you have some chickens that are not good at being a mother hen, they may have a clutch and after some time, say the heck with this and leave it.
A chicken will lay eggs until it has enough to sit on, my question is this: how does the chicken decide it has enough eggs to stop laying and start sitting?
Again, it is up to the broody hen when she has all the eggs she wants. For some it may be 3 or 4 other it may be 15 ta 20. Then you remember for some no matter what the number of eggs they may never go broody.