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The stages of chick Embryo’s Development

Rcom designed it technologically advanced egg incubators to allow the

user the ability to easily increase or decrease the rcom incubator’s

temperature, humidity, frequency and amount of egg turning.

Additionally, some rcom incubator’s models come with pre-configured

features based on varieties of birds or reptiles to make it easy to begin

hatching eggs.

2nd day of incubation: The head begins to form along with eyes, heart and blood vessels. 4th day of incubation: The Brains are divided into the fore-brain, mid-brain and  hind-brain. The heart grows much bigger and blood vessels spread wide on the film of the yolk. 6th day: Wings and limbs begin to appear and brains and eyes become clear. The embryo begins to move by itself. 8th day: Brains are settled in the head completely. The neck becomes longer. The bill develops remarkably; and wings and limbs are separated. 10th day: Wings and limbs are separated completely and toes form. Eggshell- breaking tip tip begins to occur and feathers start to grow. 12th day: It becomes much bigger and begins to hear for the first time. Feathers grow so that you can see them and the framework becomes solid. 14th day: With the head lowered toward the trunk, the back is bent to the left. Feathers cover the entire body with the head toward the air chamber. 16th day: As the head moves to under the right wing, it settles down at a position good for hatching. 18th day: The amount of amniotic fluid decreases and the chick prepares for hatching. It is time to stop rolling an egg. 19th day: The air chamber becomes much bigger and the yolk is settled in the body. The bill is held out toward the air chamber and lung-breathing starts. 20th day: The yolk is settled completely in the body and the navel hasn’t closed yet. The yolk that entered in the body becomes a nutriment for two to three days after incubation. 21th day: The chick begins to use Eggshell-breaking tip tip to break the shell. Over time, it uses limbs to push the shell and turns round to break it round. Low humidity can cause dried-up feathers to stick to the shell, preventing the chick from turning round and thus from hatching. It takes about 12 hours to break the shell completely and the chick to get out of the egg.
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