How long are they fertile?

[havi]

I have two nankins someone sent me and I was wondering how long the eggs would be fertile for? The Nankin rooster I have isnt old enough yet. But they were with ones that were before they were shipped.

 

[Mahonri]

I had a light brown leghorn that was fertile with a Giant Partridge Cochin roo for a good month after they had parted ways... and I hatched a chick 1 month and 3 WEEKS later to prove it.

 

[GwenDellAnno]

Two to three weeks at the most. Under 10 days is better.

 

[havi]

Okay thanks, thats what I wanted to know. I will set them for 2-3 weeks. Hopefully I will be able to get more Nankin chicks.