The hot weather in summer is the peak of egg production in the flock. Because the air in the house is humid and dirty, various pathogenic microorganisms are easy to grow and breed, which induces respiratory and intestinal infectious diseases, thus increasing the incidence of chickens, reducing feed intake, and drinking water. Increase, the stool becomes thinner, and the egg weight becomes smaller, the eggshell becomes thinner, the broken egg increases, the egg production decreases, and the production of the laying hen is lost. To keep the laying hens high, pay attention to the following points:

1. Heatstroke prevention and cooling

The optimum environmental temperature for laying hens is 13 °C ~ 20 °C. If the temperature is higher than 29 °C, the egg production will drop by 10% to 20%; at 37.8 °C, the chicken has the risk of heatstroke. Therefore, heatstroke prevention and cooling is the key to maintaining high yield. The specific methods are:

 
(1) Cooling: Set up a sunshade net on the sunny side of the chicken house to avoid direct sunlight. In the case of poor natural ventilation, you can spray cold water directly into the house to cool the trees and plant trees around the house to reduce the heat of reflection.

(2) Timely clearing of feces: Chicken manure is easy to ferment and generate heat, and emits harmful gases. Clean the house every morning and evening, keep the house clean and dry.

(3) Ventilation and ventilation: Open all the windows. If necessary, install a fan in the house to improve air convection and ensure the interior is cool.

(4) Reduce the density of layer chicken cages: The density of feeding is large, which is not conducive to the heat dissipation of chicken body. Generally, 7 feeding per square meter is appropriate.

2. Adjust the diet

Due to the high temperature, the laying hens are reduced in feed intake. Therefore, it is necessary to adjust the diet reasonably to better meet the nutritional needs of the chickens in different stages of laying. In the morning and evening, the diet with higher protein content and lower energy should be fed more, noon. Feed the green and juicy feed and diversify the feed variety. In addition, it is necessary to increase the mineral content of the feed, especially calcium. The feed should be fed less and the feed should be kept clean so as not to affect the appetite of the chicken or cause gastrointestinal problems.

 
3. Guaranteed drinking water

Usually, the average drinking water of the chicken is 150-250 ml per one, and the water temperature is preferably about 10 °C. Ensure that the water is kept all day long, and keep the drinking water clean. At the same time, salt can be added to the drinking water to maintain the body's demand for inorganic salts. If the laying hens break water for 24 hours, the egg production will drop by 30%, and it takes 25 to 30 days to recover. For more than 30 hours, the laying hen will change feathers. If you notice more stool, pay attention to restrict drinking water.

4. Strengthen epidemic prevention

In summer, it is suitable for the reproduction of various pathogenic microorganisms and parasites. In addition, high temperature stress causes the body's resistance to disease to weaken, which is a common season for common diseases of chickens. Therefore, it is necessary to do a good job of quarantine and isolation, and carry out vaccination of Newcastle disease, cholera, chicken cockroaches, etc. on time, and regularly disinfect chicken houses and chicken battery cages to cut off the path of pathogen transmission. Disinfect with anti-toxine, lysul, etc. every 7 to 10 days, and disinfect once a day during the onset. Regular addition of appropriate antibiotics, such as oxytetracycline, ciprofloxacin, norfloxacin, to the diet can enhance the body's resistance to disease.