Which chickens lay two-yolk eggs: normal or anomaly, reasons, how to solve the problem
Many are faced in the process of cooking with such an anomaly as a double yolk. The owners of chicken coops are happy with this phenomenon and believe that this is a huge plus in the economy, but experts say otherwise. You should figure out which chickens usually lay two-yolk eggs and whether you should start worrying about laying hens.
How to distinguish a chicken egg with two yolks
It is almost impossible to visually distinguish an egg containing two yolks. There are several signs that can be used to identify such a deviation, but such a check will not guarantee accuracy:
- Size, such an instance is one and a half to two times larger than usual.
- Weight, the parameter is easily measured using conventional food scales. An ordinary egg weighs from 50 to 70 g, and the weight of a two-yolk egg varies from 100 to 110 g.
- Shape, compared to the rest the product is more oblong.
For the most accurate determination, it is better for an experienced farmer to use a special device for translucent eggs - an ovoscope.
Important! One two-yolk egg has twice the calories of a regular egg.
Norm or deviation?
Some poultry farmers claim that the presence of two-yolk eggs indicates excellent productivity and high fecundity of chickens. Others - unconditionally consider it an anomaly and, having discovered such a product, they threw it away, and the laying hen was calculated and sent for slaughter.
According to laboratory studies, you can eat eggs with two yolks if the chickens are completely he althy.They are endowed with the same qualities of taste and benefit the body as single-yolk ones. If blood clots and other foreign bodies were detected during opening, then unforeseen consequences in the form of infectious diseases and severe allergic reactions may occur during application.
The presence of two yolks indicates a hormonal failure of the laying hen.
They are not suitable for incubation, since none of the embryos survive. The first will die in the process of growth, development, due to lack of space, and the second will begin to feed on the resulting decomposition products and will not survive either. Many experiments have been carried out in special factories to obtain chickens from defective eggs, but none of them has yielded positive results.
Why do chickens lay two-yolk eggs
There are several factors that can cause a double yolk egg to form. The reason is the age of the laying hens, hormonal failure due to poor quality care, as well as the development of diseases.
Layer age
Eggs with two yolks are mainly found in young layers that have just entered the stage of puberty. At this point, the maximum amount of hormones that provoke an increase in fertility is produced.
Activity of chickens worsens over time, as the tone of the genital organs decreases.
During this period, due to hormonal failure and pathologies, laying hens can give such a product.
Hormonal supplements
In poultry farms, chickens are bred exclusively for industrial purposes. In a short time it is necessary to achieve the maximum number of products to obtain a stable income. To speed up the onset of puberty, increase the productivity rate, hormonal preparations are poured into the feed of laying hens. With the wrong use of additives and their excessive use, hens begin to lay two-yolk and even three-yolk eggs due to abundant stimulation.Eggs loaded with hormones are unusable and dangerous to human he alth.
Important! If two yolks are found, reduce or completely eliminate the introduction of harmful additives into the feed. After 1-2 months, ovulation will normalize and recover .
Diseases
Poor and untimely care of the chicken coop can cause dangerous diseases. There are many infections in the dirt and droppings, and the humid environment only improves their development.
There are a few important rules to follow:
- Treat the room periodically with slaked lime.
- Wash and disinfect not only feeders, but also drinkers.
- Clean up the chicken coop 1 hour after feeding.
Laying hens who have caught the infection can be recognized by certain signs:
- uneven and brittle shell;
- presence of growths;
- thin shell with dents, cracks;
- when disclosing blood clots and other atypical substances;
- disgusting smell.
This product is strictly forbidden to be used in food.
Hormonal failure in the laying hen
Also, the cause of two yolk eggs may be a hormonal failure. It may occur in the following cases:
- unbalanced diet;
- poor quality food, too much or too little nutrition;
- unsuitable living conditions in a chicken coop;
- sudden temperature changes, very hot or cold weather;
- stress, fear.
The factor that provoked hormonal disorders in the chicken needs to be eliminated.
How to solve this problem
If double yolk eggs are repeated, it is recommended to solve this problem depending on the cause. Send old layers for slaughter and replace them with new representatives.
Hormonal failure can be easily restored, for this, put in order the diet, eliminate all sources of stress. If the cause is a disease, identify the sick chicken and take it to the vet for proper treatment.
Which chickens lay two-yolk eggs
There is no specific breed that lays eggs with two yolks. Not a single chicken is immune from this anomaly. In addition to the reasons listed, there can be no other reasons for the development of several yolks.
Why this product is in the industry
Poultry farms specifically add a large dose of hormones to chicken feed in order to achieve a systematic production of two-yolk eggs. Such a product is quite profitable, moreover, it is often used in the processing industry in order to make melange, which is actively used in cooking.
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