Why do chicken eggs have big heads and small heads

Chicken eggs have an unbalanced two-headed oval shape, one large and one small. To understand this, you first need to know about the formation process of chicken eggs in the hen’s body.

The structure of the egg, is basically divided into 4 parts, the yolk, the white, the shell membrane and the eggshell.

Giải thích: Vì sao trứng gà có đầu to đầu nhỏ?

The yolk is formed in the ovary. After the yolk “matures”, it leaves the ovary, then from the opening of the funnel in the upper part of the fallopian tube into the fallopian tube, and downwards to the bulge of the fallopian tube. It is here that a large amount of albumin can be secreted, which coats the yolk, forming a thick transparent layer of white.

After about 2-3 hours, it from the bulge of the fallopian tube presses against the narrow part of the tube, and there forms a cortical membrane. After more than an hour, it was pressed against the uterus (thick wall, well developed muscle structure), egg shell was formed in the uterus and a complete egg was formed. During the formation of this egg, it must stay in the uterus for 18-20 hours, and then the uterine muscles contract, pushing the egg through the genital excretory sinuses and out of the body.

The reason chicken eggs have one big end and one small end is because during the formation process, the upper end of the fallopian tube is pressed down one by one. This egg head is pressed, the egg white and shell membrane are pushed to the right and then to the left, so the egg head is enlarged, after the shell is formed, it is fixed. On the contrary, the other end of the egg points down the fall of the fallopian tube, so it inserts into the fallopian tube as it travels, causing the tube to widen so that the egg can easily travel down the uterus. The pressure of the ducts on the egg causes the small head to form and then gradually shape. When the egg reaches the uterus, the small end points towards the chicken’s tail, and the large end points in the opposite direction.

Why is the shell of industrial chicken eggs white and brown?

The difference lies in the chickens that lay them. Accordingly, chickens with white feathers and white ears will produce white eggs. Conversely, chickens with fawn feathers and red earlobes will “give” darker eggs.

Of course, here we only consider the popular industrial chicken breeds. With our chickens, eggs are white, smaller and more expensive.

Why are egg yolks dark and light different?

The color of egg yolks often depends on a hen’s diet. If you crack an egg and see a dark yolk, it means that the hen has eaten a lot of green vegetables. If the egg has a pale yellow yolk, the hen eats a lot of corn and clover. And hens that eat a lot of rice will have bright yellow yolks.

Although the color is slightly different, the color of the yolk does not affect the nutritional composition of the egg. So feel free to eat.

 

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