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1 You must not turn the eggs once they have been in the incubator for more than 16 days. 2  Donât open the incubator if you donât have anything important to place inside. 3  The chick obtained beyond 22 days are usually unhealthy.
Incubation Period of Other Species. One of the miracles of nature is the transformation of the egg into the chick. In a brief three weeks of incubation, a fully developed chick grows from a single cell and emerges from a seemingly lifeless egg. Not every avian eggs hatch in 21 days.See the chart below for incubation periods for other fowl.The duckbill platypus is the only mammal that lays eggs and they have an incubation period of 12 days. Never incubate the eggs of wild birds; these chicks will not live without their mother's care if they do hatch.Incubation Periods (species and days required to hatch).n a brief three weeks of incubation, a fully developed chick grows from a single cell and emerges from a seemingly lifeless egg. Not every avian eggs hatch in 21 days. See the chart below for incubation periods for other fowl.