Eggs are the use of light or natural light to see the internal state of the egg, test the appropriateness of hatching conditions, timely removal of infertile and dead fetus eggs, so as not to pollute the room air, affect the normal development of other eggs. In general, 2 inspections should be performed during the incubation period.
The first time the egg was placed on the 8th day after hatching, eggs and dead eggs were picked out. Normal embryonic development of fertilized eggs, radial distribution of blood vessels, bright red color; dead embryonic egg color is lighter, there are irregular blood ring, blood arc, no radial blood vessels; no egg shiny, no vascular network, can only See the shadow of the egg yolk.
The second time the egg was placed on the 21st to 22nd days after hatching to remove the dead embryos. The live embryonic egg is black and red, the air chamber is tilted, the boundary is curved, and there are thick blood vessels around; deadly red blood vessels are not visible around the embryonic egg chamber, the edges are blurred, some eggs are light in color, and the small hair is bright.
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