- Apr 14, 2019
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As above, I am changing roosters around to different pens. How long would you say it would be until the eggs are fertilised by the new rooster rather than the one in there today roughly? Thanks
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ThanksHens retain high fertility for two weeks, moderate fertility up to three weeks, and occasional fertility longer than that after a rooster has been removed. General rule of thumb is that 3 weeks after a rooster has been removed most chicks will be sired by the new rooster.