In summer, when the laying hens grow up, if they are able to carefully manage the following three aspects of scientific management, they will enable the hens to survive over the summer and improve their breeding efficiency. First, improve the feeding environment 1. The broiler house, equipment inspection and maintenance. Before the advent of summer, a comprehensive inspection of the hen house is required. 1 Check if the ventilation equipment is perfect and effective. 2 Check whether the drinking water system function is perfect. According to the chicken's habit of throwing water to cool, the conditional chicken farm can add a water tank, so that it can not only meet the chicken's habits, but also can satisfy the chicken's drinking water requirements to the maximum extent. 2. Supply chickens with clean drinking water. The water temperature is as low as possible, and the qualified chicken farms can use the water at the end of the water line to recycle water after treatment to reduce the water temperature. 3. Spray water to cool down. Spray the water on the top of the house and the chicken body with a sprayer or a sprayer every day during the hottest period. When the temperature of the chicken body is reduced, spraying cold water 30-40 cm above the head of the chicken is the best, and the droplets are smaller. The better, the water flow in the house must be ensured while spraying water. It is better to adopt vertical ventilation. 4. Adjust the flock density. Before the advent of summer, the chickens in the cage should be adjusted in time, that is, put as few chickens as possible in each cage so that the chickens in the house can be distributed evenly, and the heat stress caused by the excessively high density caused by human beings can be reduced. In particular, this work is even more important when the chicken house is not full. 5. Do a good job in environmental hygiene. Timely defecation, control of mosquitoes and flies. In summer, the temperature is high, the chicken's breathing speeds up, the water evaporates, the chicken's drinking water and water metabolism are large. This will inevitably cause the increase of humidity. Therefore, it must be ventilated and ventilated in time to keep the air in the house fresh and people in the hen house. Do not feel dazzling, tearing, blowing nose, not excessive ammonia smell. Add avermectin 10 mg/kg body weight to feed. Dispose once. Apply once every 20 days to effectively control the breeding and reproduction of fly larvae. There must be moldy feed in the trough, and the sink should be scrubbed in time to reduce The spread of disease; adhere to the chicken disinfection, especially in the sink, the ground and other places conducive to the growth of bacteria to be the focus, adhere to once a day, and should be more than two kinds of disinfectants used interchangeably. 6. Strengthen the epidemic prevention work. In summer, we must focus on the prevention of diseases such as E. coli disease and mycoplasma diseases, timely monitoring of antibody levels for viral diseases such as Newcastle disease and bird flu, and timely vaccination based on monitoring results to maintain good health and enhance the resistance of chickens. ,Reduce the effects of heat stress and disease on chickens. Second, adjust feed nutrition 1. Increase the amount of crude protein and amino acids in the diet. Because summer temperatures are high, the feed intake of chickens is reduced, so the protein content in the diets of laying hens should be appropriately increased, generally increasing to 18%. If the egg production rate is above 88%, the protein level can be increased to 18.5%, and the content of amino acids should also be appropriately increased (especially the content of methionine and lysine must be increased). 2. Increase vitamin and mineral levels. According to the high temperature weather, the feed intake of chickens is reduced, the intestinal absorption function is poor, and vitamins are easy to lose. At least, the level of multivitamins in the diet is increased by 15% to 30%; in addition, the content of minerals must be increased. The absorption of calcium by chickens is inhibited and the shells are thinned, so calcium must be added in time. Generally, high-quality shell powder can be used for feeding at dusk, and the amount is 1% to 1.5% of the diet. Scientific practice has shown that only calcium absorbed by laying hens in the afternoon and evening can be directly used for the formation of egg shells, and calcium absorbed in the morning is mostly stored in bones. 3. Add grease to the feed. After laying hens are laid, energy determines the rate of egg production. Feed intake at high temperatures decreases and energy intake is insufficient, which can directly affect the egg production rate. Addition of oils and fats can not only increase feed energy, improve feed palatability, increase feed intake, but also reduce metabolic heat production. Tests have shown that adding 1% to 2% soybean phospholipids in feed can significantly increase chicken egg production. 4. Add electrolytes and heat-stress resistant drugs. Adding 200 mg of vitamin C per kilogram of feed at high temperatures can increase the egg production rate by 9.2%. At the same time, it can also increase the chicken's resistance and immunity, reduce the rate of broken eggs and the ratio of eggs to eggs. Zinc Bacitracin is currently a good heat-resistant stress relief agent. Adding 10 mg Bacitracin per kilogram of feed can significantly increase feed intake and reduce metabolic heat production. The addition of 0.2% to 0.5% sodium bicarbonate (baking soda) to the laying hen diet can significantly increase the chicken laying rate under heat stress conditions, regulate the acid-base balance of the blood, and can also increase the thickness of the shell and reduce it. The destruction rate of the egg. In addition, vitamin E, sodium citrate, fumarate, etc. also have a certain effect on reducing heat stress. Third, strengthen the feeding and management 1. In hot weather as far as possible to avoid the transfer group, cut down, immunization and other work. The artificial insemination time for breeders in summer must be adjusted to after 16:00 in order to reduce unnecessary losses caused by external disturbances and stress. 2. According to the characteristics of relatively cool at night in summer, the fill light time can be adjusted. Generally, lights are turned on at about 3:00 in the morning, and the feeding time is adjusted accordingly to a cool time period. This can promote the birds to eat more food. In short, comprehensive measures such as improving the feeding environment, scientifically and rationally adjusting the dietary formula, and adding anti-heat stress drugs can ensure that laying hens can safely spend the summer. Guangzhou Zhongzhinan Supply Chain Co.,Ltd. , https://www.gzzhongzhinan.com