fertile roosters

[chump]

Can anybody tell me how old a rooster has to be to fertilize egg?

 

[Kassaundra]

And how old he can get and still reliably fertilize eggs?

 

[debilorrah]

If it's a rooster, it's fertile. From first mount to keeling over dead.

 

[pgpoultry]

Quite a bit depends on the breed. Big pure breeds take longer to mature, but he can strut his stuff for years once he gets started.