How long to separate before keeping eggs

[krishenschel]

I want to try to hatch my Buff Orpingtons eggs. How long do I need to keep the Buff's separated to insure they haven't been fertized by my other roosters?

 

[what was i thinking]

they say three weeks to a month

 

[krishenschel]

Thanks, I didn't know sperm stayed viable that long

 

[RHewitt]

I asked this same question a few weeks ago and got a bunch of 3 to 4 weeks as the answer. They say that a hen can have up to 21 eggs fertilized by one mating so 4 weeks will make sure you are breeding true.