How Do Chickens Make Egg Shells? The Process

Have you ever wondered about the process of creating chicken eggs? In this article, we’ll explore the life of a chicken, starting from hatching. You might actually be surprised at the way chicken eggs are made!

How Do Chickens Make Egg Shells?

It’s a good question because the answer is surprisingly complex.

Chickens have to make an eggshell by taking calcium carbonate (CaCO3) from their diet and combining it with a little bit of water to create a gel that they then glue onto their eggs. The process starts in the hen’s oviduct (the long tube where the egg travels before it’s laid). The oviduct is lined with glands that secrete calcium carbonate onto the egg as it goes past. These glands are located behind the shell gland and are called calcification glands. In some breeds of chickens, these glands can be up to one-third of their body weight!

The next step in creating an eggshell is to form a gel around this layer of calcium carbonate – so that it sticks to itself rather than falling off into your breakfast! Chickens use special proteins called albumins for this job (they’re found in egg whites). These proteins bind together to form a sticky network that glues everything together nicely.

The entire process for the eggshells to form will take about 20 hours.

What Is an Eggshell Made Of?

Chicken Eating Food

Eggshells are made up of two layers:

1. Outer layer: This is the hard, white layer that you see. It’s made up mostly of calcium carbonate (CaCO3) crystals arranged in a matrix.

2. Inner layer: This is where the shell gets its color from, which is determined by what the hen eats. If she eats plenty of yellow corn and green grass, then her eggs will be more yellow or greenish. If she eats lots of meat and fish, then her eggs will be more brown or even blue-ish.

What Do Hens Need to Eat to Maintain Healthy Eggshells?

Hens need a balanced diet to produce calcium-rich eggs with strong shells. In addition to calcium, hens need adequate amounts of protein, vitamins D and B2, iodine, zinc, and manganese for healthy eggshell formation.

Hens can be fed a commercial layer feed or given scraps from the kitchen and garden. Hens that are allowed to free-range will pick up additional nutrients from bugs and other natural sources.

A healthy diet is the best way to ensure that your hens lay eggs with strong shells. A diet high in calcium and vitamin D is especially important since these nutrients are necessary for proper shell development.

Commercial Feeds – Commercial feeds contain all the nutrients your hens need for good egg production, including vitamins A, D3, E, and B12 as well as minerals like selenium and iodine. Commercial feeds also contain added methionine and lysine — two amino acids that aid in the growth of new feathers when there is not enough protein in their diets.

Grains & Grits – Chickens love seeds (including corn), but they should be fed only in moderation because they are high in fat and can result in fatty liver disease if overfed. Grains such as wheat or oats are better choices than corn due to their low fat content (2 percent vs 12 percent). Wheat must be ground into flour or grits before feeding it to chickens because whole wheat kernels will cause bloating.

How Is the Color of an Egg Determined?

The color of eggs depends on the breed of chicken, the diet and environment in which they are raised, and the genetic makeup of each chicken. Generally speaking, larger birds produce larger eggs and smaller birds produce smaller eggs. In addition to breed, egg color can also be impacted by what type of feed is given to chickens. For example, brown-shelled eggs come from hens that eat lots of leafy green treats like grass or hay.

Eggs come in a variety of colors such as white, brown, blue/green and pinkish tan. The color depends on what type of hen laid it and what food she ate while she was being raised. Some breeds lay lighter colored eggs while others lay darker colored ones. Chickens that eat lots of green plants will lay browner eggs while those who eat more yellow corn tend to lay lighter colored ones.*

Do Different Color Eggs Taste Different?

No, different color eggs don’t taste different!

Eggs come in a variety of colors. The most common are brown and white, but you can also find blue, green, orange, and even pink eggs.

Each egg has its own unique flavor and texture, but the color of the shell does not affect the taste or nutritional value of the egg itself. In fact, there is no difference between brown and white eggs other than their color.

However, there may be some variation in taste between brands of white and brown eggs. This is because some producers add vitamins or minerals to their feed to give their chickens more nutrients than others do. These additives can affect the taste of the eggs produced by those chickens — so if you’re looking for a “healthier” egg, try buying organic or farm-fresh varieties from local sources rather than supermarket brands.

How Strong Is a Chicken Egg?

The strength of an eggshell depends on its thickness, which varies from one type of chicken egg to another. The average eggshell is about 0.7 millimeters (0.03 inches) thick, but it can be as thin as 0.6 millimeters (0.02 inches) or as thick as 1 millimeter (0.04 inches). The weight of an egg depends on its size and the density of the contents: An average-size hen’s egg weighs between 50 and 65 grams (1.8 and 2.3 ounces), while an ostrich egg weighs more than 3 pounds (1.4 kilograms).

The strength of an eggshell is greater than you might imagine. The shell is composed of three layers: the outer cuticle layer — or bloom — which serves as a protective coating for the rest of the shell; the middle layer known as the chalazae; and an inner membrane called the vitelline membrane that helps form the air bubble in eggs before they are laid by birds or mammals, who lay large yolks surrounded by albumen (egg white).

In Summary

The process, which takes about 20 hours overall. The developing eggs will spend most of their time in the shell gland. This is where the shell of the egg will form and the color is added. During the formation of the egg, which the process is called calcification, layers of calcium carbonate are added to form the shell.