How to prevent non diseased egg production in laying hens

You can consult the problem of raising chickens on the breeding software - Somutong.

Under the normal feeding management conditions, the egg production of improved breed laying hens has a certain regularity. After seeing eggs, the egg laying rate rises rapidly; Within 3 to 4 weeks after the egg production rate reaches 50% (i.e. the group starts to lay), the peak of egg production begins; After a certain amount of time, it slowly declines. In actual production, often due to improper feeding, disease infection and other factors, the egg production of chickens suddenly declines, resulting in large economic losses.

To avoid this from happening, it is important for breeders to understand the various causes of a sudden drop in egg production and to take precautions as early as possible. There are many reasons for the decline in egg laying rate, which are summarized in Table 21.

Table 21 Causes and prevention of declining egg laying rate.

Table 21 Causes and prevention of declining egg laying rate (continued)-1

Table 21 Causes and prevention of declining egg laying rate (continued)-2

To raise laying hens, it is very important to raise the intestines. Because intestinal diseases of laying hens will not only affect the healthy growth of chickens, but also seriously affect the egg production status and directly damage chicken farms.

How to have a chicken liver and a big spleen**?

Chicken hepatic splenomegaly (BLS), also known as chicken hepatitis splenomegaly syndrome, is an infectious disease characterized by hepatosplenomegaly in laying hens and broilers caused by avian hepatitis E virus. The disease mainly causes a 20%-40% decrease in egg production and an increase in the mortality rate of laying hens and broiler breeders aged 30-72 weeks. Dalong Daganning can be used for hepatosplenomegaly, liver rupture and bleeding caused by drugs, toxins and other reasons in egg poultry or breeding birds, which is effective in 1 day and controls death in 2 days.

What are intestinal diseases in laying hens?

There are many intestinal diseases in laying hens, such as diarrhea, E. coli, salmonella, staphylococcus, streptococcal disease, etc. Among them, laying hens are divided into metabolic diarrhea, bacterial diarrhea, virus diarrhea, parasite diarrhea, poisoning diarrhea, physiological diarrhea, environmental diarrhea, fungal diarrhea, and nutritional diarrhea.

How about intestinal diseases in laying hens**?

When intestinal diseases occur in laying hens, the first thing to diagnose and confirm which intestinal diseases the chickens have, and the symptoms can achieve good results.

1.Egg diarrhea.

As mentioned above, egg diarrhea is divided into many types, and when egg diarrhea needs to be diagnosed, it can be.

1) Physiological diarrhea.

First of all, it is necessary to adjust the feed and adjust the feed reasonably. The content of protein and crude fiber in the feed of laying hens should be appropriately reduced, the content of vitamins should be appropriately increased, and the intestinal tract of laying hens should be supplemented with beneficial bacteria.

2) Disease diarrhea.

**There are many drugs for this disease, and the choice of drugs should be based on the actual situation of sick chickens in the chicken farm. In addition, in terms of dosage, course of treatment and drug combination, it is carried out scientifically to avoid blind medication and delay the disease.

Here are a few prominent common questions for reference:

Stress factors caused by the environment (including climate, air, water, noise, and changing breeders). The decline in the laying rate of laying hens caused by this factor is sudden, but the stress factor does not subside, and this low egg production rate will continue to exist.

Exclusion of infectious factors. This condition does not come as suddenly as a stress reaction, but develops gradually in a short period of time, accompanied by obvious symptoms of infection, and here special attention should be paid to the problem of parasites, which are more insidious.

Exclude factors such as improper feed or improper changes. Feed is the basis for high yield provided to laying hens, and it is impossible to achieve high yield without scientific formulas.

It is a normal phenomenon for laying hens to produce their own laws.

The first laying cycle of egg-laying chickens is about 1 year, and the whole process can be divided into three stages: pre-laying, peak and late-laying. According to the laying period, the average weekly laying rate is a parabolic curve rather than a straight line.

From the beginning of laying to the end of 80 weeks, usually from the beginning of 21 weeks of age to the end of 28 weeks of age (the number of breeds of chickens has moved forward to 19 to 23 weeks of age).

When the egg production rate of the flock rises to 80, it is the peak of egg production. The 80 ovilet rate still rises rapidly at its peak, usually rising to 92 to 95 in 3 to 4 weeks. The laying rate above 90 can generally last for 10 to 20 weeks, and then slowly decline.

When the laying rate drops below 80, the peak laying season is over. The peak period of modern egg varieties usually lasts for about 6 months.

At 72 weeks, the egg laying rate remains around 65. The period from the average weekly egg laying rate below 80 to the culling of the flock is called the late laying period, which usually refers to the age of 60 to 72 weeks. The decrease in the average weekly egg production rate in the late laying period was larger than that in the peak period.

Temperature is one of the important environmental factors in the management of laying hens, the temperature will not only cause changes in chicken feed intake, but also will cause many aspects of chicken physiology, such as the secretion of thyroid hormone, the level of luteinizing hormone in the blood, etc., these factors will affect the metabolic rate of chickens and the real-time discharge of eggs, thereby affecting the egg production performance of chickens. Therefore, keeping the house in the right temperature range is very important to keep the chickens at a high level of egg production and save feed.

Management reasons (1) Temperature, humidity, ventilation and other management aspects are unreasonable, resulting in a decline in the egg production rate of laying hens. (2) Frightened by various external stresses such as man-made, resulting in a decrease in egg production rate. (3) Insufficient drinking water or feed intake will also cause a decrease in egg production performance.

4) The nutrient ratio is unreasonable, and feed mildew will also lead to a decrease in the egg production rate of laying hens. (5) The lighting is unreasonable. 2. Causes of diseases (1) Some nutritional and metabolic diseases cause a decline in the egg production rate of laying hens.

2) If the laying hen suffers from influenza, Newcastle disease, branching, egg loss syndrome and other diseases, then the egg production rate will also decrease. (4) If the laying hen suffers from nematode, coccidiosis and other parasitic diseases, the egg production rate will decrease to a certain extent. (5) Impaired liver and kidney function of egg shells will also lead to a decrease in egg production rate.

The main ones include Egg Reduction Syndrome (EDS 76), Infectious Bronchitis (IB), Atypical Newcastle Disease in Laying Hens (ND), Swollen Head Syndrome (SHS), Avian Influenza (AI), Avian Encephalomyelitis (AE), Avian Pox (POX), Septicemia (MG), Infectious Rhinitis (IC) and Avian Cholera (FC).

What are the factors that affect egg laying rates?

First, the breed of chicken.

Second, the age of the beginning of production.

The older the laying day, the larger the eggs laid in the middle and late stages. The average unit weight increased for each 1 day of postponement of the age of labor.

3. Egg laying age.

Generally, 18 weeks after the start of production, the single weight reaches the standard, and the egg weight at the beginning of production is only 80% of the standard egg weight.

Fifth, the light is sufficient.

Sixth, the weight of the hen.

7. Ambient temperature.

8. Nutritional supplements.

Protein is an important factor in determining egg weight.

But the most important one is feed, nutrition can't keep up, and egg production rate can't keep up. Therefore, in addition to doing a good job in the outside world, the focus is on the feed, how to choose the premix for laying hens, first of all, the quality is to be obtained through the trial, the quality of the material of the large manufacturers must be very stable, the premix of laying hens produced by Park Lida (Xuzhou) Nutrition Technology ****, is a big brand of laying hen feed. Layer premix *** bad mainly depends on the egg production rate of laying hens. The quality of the eggshell only needs to be less thin shell eggs and less soft eggs, and the death rate of laying hens is reduced.

In order to avoid the decline in the egg production rate of chickens, chickens should be raised in the chicken coop, and fluorescent lamps should be installed to extend the light time. Use charcoal to burn the fire or install a hot air fan for heating. If the temperature in the house is below 18°, the egg production rate will decrease.

Feed more green and high-energy feeds. Due to the cold season, the feed intake of laying hens is relatively large. In order to adapt to the change of winter temperature, chicken feathers begin to thicken and become denser, and internal organs such as heart, liver, and kidney are gradually enlarged.

If the weather is good, you can let the chickens out to bask in the sun and remove some branches from the shade of the chicken farm. If you want to raise chickens indoors, you can use some heating equipment to heat themWeakened immunity.

Low temperature will directly cause low feed intake and weakened chicken activity. Decreased immunity is also a period of high incidence of respiratory diseases and viral diseases. Seriously affects egg production rates.

<> for chickens at the peak of egg production, it should be more difficult to strengthen management, because once the egg production is **, it is difficult to return to the original level. In the face of a sudden cold weather and a drop in the production variables, we should start with the following points to keep the egg production of chickens constant. The temperature is low in winter, the heat consumption is too much, because the winter days are short, the number of feeding is less, the feed intake of chickens is relatively reduced, and the nutritional needs of laying eggs can not be met.

If you want the chickens to lay eggs in winter, you must find ways to increase the amount of light, keep the house warm and increase the number of feedings.

The preferred temperature of laying hens is between eight and 27°, so in winter the temperature is significantly lower than that, so chickens are prone to problems in laying eggs, or in terms of growth. At the same time, I hope you will enjoy my sharing. Egg prices** are mainly related to the decline in the production of laying hens in hot weather and the increase in feed prices.

In addition, there are two other reasons for the increase in egg prices, one is the rainy day, and the other is the feed **. The salesperson said that the temperature has been high recently, and it is not easy to stockpile.

In the first circle, some of the houses are insulated, and some are to increase the fire wall and close the windows well, especially to avoid thieves.

The temperature can become higher, and it can also increase the light of the chicks, which can often make the chickens lay eggs for a longer time, and can also properly change the nutritional feed for the chickens, so that the nutrition of these egg-laying chickens is more abundant, which is also conducive to lengthening the order.

Provide a suitable living environment for laying hens, add premix in accordance with the standard, maintain the balance of feed nutrient solution, avoid people from entering the enclosure, reduce stress, strengthen feeding management, supplement calcium, supplement light, and maintain high and stable production of chickens.

Fixed light time and light intensity; Strengthen ventilation and open skylights while keeping warm; When the weather changes, pay attention to the weather forecast, and give the chicken electrolytic multi-dimensional or quick supplement, ampicillin, etc., in advance, to enhance the chicken's disease resistance.

Maintain the stability of light intensity and light time, help to improve the laying rate of laying hens, the general light time is about 16 hours a day, if it is necessary to shorten the light time and weaken the light intensity, it needs to be slowly reduced every day, so that the chickens have an adaptation process. To ensure the nutrition and quality of the feed, if the nutrition is not enough or the quality is not up to standard, it will lead to a sudden decline in egg production or even no egg production.