how long do chickens eggs take to get fertile after adding cockerel ?

[ryanboi1234]

how long do chickens eggs take to get fertile after adding cockerel?

 

[shortgrass]

They will be fertile as soon as you see him do his "job"

As long as both hen and rooster are mature, and you see mating, the eggs will be fertile within a few days. It takes the hen about 26 hours or so to make an egg, so within 2 or 3 eggs after mating, I believe