Why does a chicken lay shell-less eggs

Clutch eggs (egg without shell) and thin-shelled eggs

Opinions are divided when it comes to the color of perfect chicken eggs. The situation is different with the nature of the packaging - the lime scale should be nice and firm and as even as possible. So much for theory, in practice the chicken egg is by no means always perfect! Crochet eggs, i.e. an egg without a shell, are not uncommon.

Why are morning eggs made? - The eggs without their shells

Lay chickens Eggs without a shell, this is how one speaks of wind eggs. The entire egg is then only surrounded by the eggshell membrane, the lime shell and cuticle are missing. If this phenomenon occurs frequently, it can affect one Lack of calcium point out, it can also be a Vitamin D deficiency because the vitamin is needed to metabolize calcium.

Also young chickens At the beginning of the laying period, their keepers can occasionally give birth to wind eggs without a deficiency or disease being present. The same goes for older chickens, of course.

It becomes problematic if the lime scale is missing frequently or is extremely thin-walled. In some cases, the eggshells break even with very light pressure.

Chicken lays egg without shell, what to do with crustaceans?

First of all, the housing and feeding conditions should be checked here. Is the feeding correct, is there enough calcium in the form of mussel grit?

What about the keeping? Vitamin D is in short supply, especially in winter when the chickens hardly get any sunlight. Appropriate vitamin preparations provide a remedy.

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But also in summer there can be wind eggs or thin-shelled eggs. Here, too, a look at the feeding provides clarity. In many cases, chickens only consume little food during the hot weeks. This in turn leads to a reduced calcium intake in relation to the total amount of feed and in many cases is insufficient to cover the calcium requirement for egg production. Liquid calcium supplements can be the solution to the riddle here.

Eggs without a shell despite a large spout?

Amazingly, eggs without a shell are common in chickens that have a large space available. Shouldn't the chickens find enough stones and lime there?

At second glance, however, the cause can be quickly identified: Chickens that find a lot of fresh feed in the run only consume a very small amount of chicken feed. As a result, the calcium contained in chicken feed is no longer sufficient to form eggshells.

Of course, it seems reasonable to assume that the chickens should find enough stones in the casserole to meet their calcium needs. On the one hand, however, in a few regions the stones consist of usable limestone. On the other hand, the chickens eat all the stones in the run every day. After a few years there are hardly any usable stones left. This can be remedied by sprinkling a few handfuls of mussel grit in the run every week.

Bindweed from disease

If the problem of shell-less or thin-walled eggs persists even with optimal feeding and keeping conditions, the health of the animals must not be disregarded.

Some virus-related diseases, such as infectious bronchitis, also lead to coiled eggs or thin-shelled eggs, which are sometimes creased in length or width. This can be remedied by calling in a veterinarian or receiving an appropriate vaccination before the animals fall ill.

Intact Eggs - The three layers of the egg shell

Mother Nature has come up with a really smart “product” for the eggshell. What looks quite simple-minded at first glance, turns out to be a brilliant idea on closer inspection. Depending on how big the egg itself is, its takes Shell between 8 and 14 percent of the total weight a.

At a Thickness from 0.2 to 0.4 mm the eggshell is built up in three layers. Only two of them are actually visible, the crystal layer, i.e. the hard crust and the shell skin underneath. The cuticle, also called tegmentum, covers the calcareous shell in a thin layer. She has an important job to do, to which we come in a moment.

The lime bowl

First we will dedicate ourselves to the miracle of the “real” egg shell. This lime bowl consists for the most part of calcium (around 2 grams), more precisely of many small calcite columns that interlock and stabilize each other. In this way it is only possible for the egg to develop a stability that is able to loosely to carry up to 20 times its own weight. For an average egg, that's about a kilogram!

Another factor in the stability of the lime shell are the Pores. 10,000 pieces criss-cross the shell of an egg like honeycombs. They also take over the exchange of substances, because an egg breathes. After all, an egg is not primarily made for human consumption, but rather as a hatchery. During the development of the chicks, oxygen has to come in, carbon dioxide and water vapors out. A few liters come together here. However, where diffuse gases can get in and out, bacteria also have an easy time penetrating - and we would be back at the cuticle.

The cuticle

Their job is to prevent intruders such as bacteria and germs. It also ensures that the moisture stays in the egg and that it does not dry out. If the cuticle is damaged, the egg quickly goes bad. Incidentally, that is also the reason why Eggs not washed should be. The cuticle is easy to wash off with water and this is not a good idea either for storage or for use as a hatching egg. By the way, there is a ban on washing eggs in stores (EU)!

The eggshell membrane

The eggshell membrane, which is a thin membrane on the inside of the lime shell, offers further protection against the ingress of germs and the like, a final barrier, so to speak. A really well thought out thing such an eggshell!