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Discussion in 'Incubating & Hatching Eggs' started by Henly11, Jan 28, 2013.
How do I know which eggs are fertilized?
You have two ways to find out. Put them in an incubator and candle them in 7-10 days, or crack one open and check it for a bullseye.
Is it Fertile or Infertile?
To check the fertility, simply break an egg in a bowl. Find the white spot on the yolk. If you do not, use a spoon to gently flip the yolk over until you find it.
If the egg is fertile, the white mark will be nearly perfectly round and in the center it will be yellow;
it will resemble a donut. If it is infertile, the white mark will not be very round, and in most cases, smaller than that of the fertile mark. If the egg is not fertile, the 'white mark' is called a "blastodisc". If the egg is fertile, the 'white mark' it is called a "blastoderm", and this means that cell division, because of fertilization, occurred. A link with more pics of fertile vs Non Eggs! https://www.backyardchickens.com/t/16008/how-to-tell-a-fertile-vs-infertile-egg-pictures