- Nov 22, 2011
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Can anyone tell me how long a hen has to be in with a rooster before all of her eggs will be fertilized by that roo? I separated by ams into breeding pens and I had them in there for at least a week when I put an egg in the bator to test fertility. it hatched this past weekend and the darn thing has pink spots on its toes and sparse muff and beard. Pretty sure its a mutt.
I waited 5 weeks and still had a few mixed chicks. When I made the same inquiry I rec'd a range of replies from 4 - 8 weeks then I found out it is also possible that roosters can be more fertile than average and hens can retain viable sperm for several MONTHS. It isn’t common but it DOES happen. See FAQ #33 on the University of Kentucky Poultry Extension website here: http://www2.ca.uky.edu/smallflocks/FAQ.html#Q33