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Discussion in 'Incubating & Hatching Eggs' started by chump, Nov 11, 2010.
Can anybody tell me how old a rooster has to be to fertilize egg?
And how old he can get and still reliably fertilize eggs?
If it's a rooster, it's fertile. From first mount to keeling over dead.
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.