Eggs with two yolks are quite common. At all times, such eggs fell into the hands of a person, but only recently have scientists proved their absolute harmlessness. These eggs can be eaten just like ordinary eggs.
Reasons for the appearance of two yolks in one egg
It turns out that the formation of two yolks in one chicken egg can be triggered both by illness or improper feeding and maintenance of the animal, and by completely natural reasons, such as the maturation of two cells at the same time. Together they pass through the animal's reproductive system, surrounded by a single protein and shell.
It happens that the presence of two yolks in one egg is due to a disease of the oviduct. However, two yolks in this case are more likely a positive surprise, compared to the possible other consequences. If a hen has a diseased oviduct, it can produce shells without the yolk. Also yolks with outgrowths. Deformed eggs may stand out, with twisted, mint, inverted shells. There is blood inside the egg, etc.
Experts say that most often eggs with two yolks are laid by young hens, whose age does not reach one year. This is especially true for highly productive breeds of laying hens.
By observation method, it was found that it is pointless to hatch chickens from eggs with two yolks. They do not hatch at all or do not live long.
The commercial approach to double-yolk eggs
Interestingly, resourceful producers, convinced of the harmlessness of eggs with two yolks, have established uninterrupted supplies of this type of product to the world market. It is known about the existence of such special farms and factories for hatching eggs with two yolks in Russia, and in Italy, and in other countries.
If in Russia such a product costs only a few rubles more than ordinary eggs, in Italy eggs with two yolks are considered a "premium" class. It's no secret that Italians consume a lot of dough. Almost all national dishes are not complete without the addition of eggs. Thus, two yolks under one shell have become the highest degree of convenience for the practical gourmet.
If we consider this phenomenon from a biological point of view, then eggs with two yolks are, rather, a mistake of the chicken organism, a mutation, an ugliness. And, nevertheless, such a product has won its niche in the world market. The point here is not only in economy, but also in the fact that twice as many useful substances are concentrated in one egg, and they taste absolutely identical to the usual ones.
Eggs with two yolks are slightly different in appearance from eggs with one yolk. They are larger in size and weight, the shell is thinner, the shape is more oblong. Not so long ago, it was on these grounds that eggs with two yolks were easily recognized, and they were put on egg powder. But, after their harmlessness was proved, eggs with two yolks were fully included in the human diet.
