Blood on the shell and inside of chicken eggs

The presence of blood, found by farmers on the surface of the shell or inside the egg, not only lowers the potential cost of production, but also causes concern for buyers. Many of them consider the product to be unusable and return the product to the dealer. For farmers, these symptoms cause concern about the health of the bird and force them to look for ways to eliminate the pathology. Are there any reasons for concern, and can you eat eggs that have traces of blood on the surface or inside the egg? This article is devoted to the answers to these questions, the determination of the causes of the violation and the existing methods of its elimination.

Why chickens lay eggs with blood

In order to avoid confusion in concepts, it is necessary to distinguish between blood formations indicating the beginning of the development of the embryo and inclusion, signaling a violation of the conditions of detention or the health of the chicken.Many scientists believe that the egg in which the embryo has begun to form can be distinguished by the circular shape of the blood clot that surrounds the yolk. In this case, if the storage conditions of the product are violated, for example, the storage temperature rises above optimal values, the fetus begins to develop in the egg, the embryo's circulatory system is formed, but it died at the initial stage of development. Other scientists argue with this theory, since the conditions of keeping chickens in a poultry farm do not provide for fertilization by a rooster, which calls into question the theory of embryo development.

Blood structures of other types, if found inside the egg, indicate a violation of the conditions for keeping the bird. If blood spots are found on the surface of the shell, in most cases, this indicates that the chicken has pathologies associated with the state of the oviduct. Since the causes of the appearance of the violation and the possible diseases are different, for the case of detection of blood inside and on the surface of the egg, we will consider both cases and the factors that cause the appearance of pathology in each of them.

Blood inside a chicken egg

Small blood inclusions, in most cases, are observed in brown eggs... Their appearance is associated with the process of ovulation, in which blood particles enter the forming yolk or white, resulting from damage or complete rupture of the capillaries penetrating the yolk sac at the stage of egg formation. The further process of egg formation takes place in the area of ​​the oviduct in conditions of ingress of blood particles, which subsequently surround the layer of protein formed around them.

Among the reasons contributing to the appearance of blood inside chicken eggs, farmers note such factors as:

1. Experienced stressful situationcaused by any event that disrupts the normal rhythm of the chicken's life. Such an event can be a bird falling from a height, a conflict with relatives, a meeting with pets or predatory inhabitants of the private sector, for example, a marten.
2. Violation of the recommended number of individuals placed by the farmer on the total area of ​​the chicken coop. The optimal indicator of the amount of space required for layers is planning the area of ​​the hen house based on the stocking density of no more than 4 chickens per 1m².
3. One of the reasons for the appearance of blood in the yolk of chicken eggs there may be an insufficient number of males. The recommended number of males is based on a ratio of 1 male to 10 chickens.

Important! Experts note that not only an insufficient, but an excessive number of males in the chicken coop have a negative impact on the quality of eggs.

4. One of the probable factors causing the appearance of blood in chicken eggs is lack of mineral components in the poultry diet. In most cases, pathologies caused by this cause occur during vitamin deficiency, which occurs in the winter and early spring. The chicken cannot compensate for the lack of juicy feed during this period by consuming other feed, in this case, adjusting the diet of the bird can correct the situation.

Note! Experts claim that there is a high probability of transmission of a defect associated with the ingress of blood particles into the oviduct, by inheritance. A similar pathology may be present in a chicken from birth, manifest over time, or be absent throughout life. According to their observations, the tendency to the appearance of such disorders is more pronounced in chickens with a color color, which is explained by their weaker immune system compared to white birds.

Blood on the shell

Blood stains on the surface of the shell of chicken eggs can appear due to one of the diseases leading to trauma to the oviduct. It should be noted that in case of serious diseases, the appearance of an egg, on the surface of which there are blood marks, may be a harbinger of further deterioration in the health of the bird, not excluding its death.In any case, the appearance of the described signs is a reason for the intervention of the farmer with the aim of timely treatment of the bird. Among the factors that provoke damage to the oviduct and cause blood to appear on the surface of the shell of chicken eggs, experienced breeders distinguish:

• Damage caused large size of eggs brought, this type of pathology is especially relevant for chicken breeds with a small mass and a dry build, for example, hybrid species of crosses. With such a body composition and a small size of the oviduct, the excessive size of the eggs can lead to a violation of the integrity of its structure.
• Pathologies caused by inflammation of the oviduct, which appeared as a result of an infectious disease, which spreads through young layers. It should be noted that inflammation can be of a non-infectious nature and can be formed, for example, as a reaction to an irritant acting on an organ.

Important! In addition to the size of the eggs, the appearance of pathology can be influenced by excessive masonry intensity. In this case, to eliminate the pathology, measures should be taken to reduce the egg production of a sick individual.

Methods and solutions to the problem (if blood is inside and on the shell)

Given the large number of factors affecting the possibility of the appearance of pathology, when it occurs, in order to save the time required for the diagnosis and initiation of treatment, it is recommended to consult a veterinarian. Blood inside chicken eggs can appear for one of the reasons listed, to eliminate the pathology, it is necessary to consistently bring the conditions of keeping and feeding the chickens in accordance with the indicators recommended by specialists.

To eliminate pathologies associated with the presence of blood spots on the surface of the shell chicken eggs, it is recommended to use one of the following methods of drug therapy:

• To eliminate inflammation of the oviduct it is recommended to flush the organ with a warm salt solution. To prepare the drug, it is necessary to pour 2-3 tsp of salt with a glass of heated water and flush the oviduct after preliminary checking for the absence of eggs in the organ. Since the event is not a very pleasant treatment procedure, it is recommended to ensure a fixed position of the bird during it, for which you should resort to the services of an assistant whose only task will be to hold the bird during the therapy.

• In addition to the described method, it is widely used to eliminate inflammation. antibacterial drugs such as metronidazole... This medication in the amount of 0.5 tablets is added to the solution prepared according to the method described above. The course of therapy when using such a drug is about 7-10 days. In the first few days, the procedure is performed twice a day, when signs of improvement in the condition of the oviduct appear, the veterinarian may recommend that therapy be carried out only in the evening.

Important! Even if there are signs of improvement in the hen, which will include the gradual disappearance of blood stains from the surface of the eggs, it is recommended that a full course of treatment for inflammation is completed as directed by your supervising veterinarian.

• If the eggs are too large and the chicken is too small, masonry soreness and associated organ damage The bird's reproductive system can be reduced by lubricating the cloaca with petroleum jelly. Before applying the lubricant, the area of ​​the wound is treated with hydrogen peroxide applied to the finger, while a local antibacterial effect is achieved and a change in the color of the cloaca is observed, which in turn reduces the likelihood of cannibalism. Treatment of the damaged area by lubricating the oviduct facilitates the movement of eggs along it, eliminating the possibility of injury.

Experts say that normally, the treatment of pathology should not exceed 5-10 days. If this is not the case, or if there is no improvement in the condition of the birds, as determined by the daily inspection of the flock, you should consult a veterinarian. That being said, you shouldn't be surprised if his verdict includes advice to slaughter the bird, perhaps treatment was started too late.

Prevention

In order to prevent the appearance of blood in poultry products, experts recommend taking the following measures:

• It is necessary to provide a year-round supply of complete feed or substitutes. Sprouted grains, which are high in vitamins and protein, are good characteristics for replacing missing nutrients.
• Should exclude the possibility of injury to the abdominal organs of the bird, arising from the wrong location of the perch in the hen house.
• It is recommended to take action excluding the appearance of excitement and stressful situations in the bird.
• To ensure good productivity of chickens with high quality product, it is necessary to ensure sufficient lighting, with insufficient daylight hours, it is recommended to use electric lamps. An exception in this case is cases in which the owners deliberately reduce the intensity of lighting in order to reduce the egg production of chickens, this approach is used when the bird is diagnosed with depletion.

Advice! If, for any reason, the hen lays eggs with defects throughout the entire laying period, it is recommended to exclude it from the livestock and replace it with a young white hen.

Is it okay to eat eggs with blood inside or on the shell

Experts note that eggs with blood streaks or streaks on the surface of the shell are quite suitable for consumption, since the defect does not affect either the taste or the nutritional value of the product. However, given the unaesthetic appearance of the product, it is recommended that before starting cooking, pry off the area of ​​localization of the blood clot with a toothpick, kitchen knife or fork and remove it. The remaining product without risk to health can be used according to the recipe.

Important! It should be noted that it is strictly forbidden to eat eggs that have an annular shell of blood, which is a sign of the formation and death of the embryo. Such products should not be consumed both raw and after heat treatment.

The presence of blood in chicken eggs not only reduces the consumer value of the product, but also may indicate a deviation from the nominal conditions of keeping the poultry or the presence of tissue integrity violations in the oviduct area. Timely intervention and a number of therapeutic measures will allow the breeder to quickly save the bird from the disease. The correct choice of the breed of laying hens, careful attention to the livestock and prompt correction of the conditions of detention, depending on the acting negative factors, can prevent the appearance of pathology.

Video: what to do if blood appears on chicken eggs