Due to the short winter sunshine and changeable climate, it is necessary to keep the laying hens in a stable manner and strengthen management. 1, cold and warm winter chicken house temperature should be maintained between 8-13 °C. Completely inspect the doors and windows of the chicken house before winter, block the wind tunnel, hang the curtain, but leave a good ventilation and vent. Thick hay in the house, timely removal of dung, diligently for the mat grass. Appropriately increase the stocking density of laying hens and enhance their ability to keep warm and cold. 2. Ventilation and ventilation At noon every day, open the doors and windows and vents to adjust the air flow to keep the air in the house fresh and smooth. To effectively remove or reduce harmful gases such as ammonia in the house, the house can be sprinkled with calcium phosphate every 10 square meters every week. 0.5 kg, or 30 ml of peracetic acid solution per cubic meter per house, once per week. 3. The daily illumination time of the supplemented light layer is 16 hours, and the natural light in winter is shorter than 12 hours. Artificial light must be added. The method is to hang a 40-watt light bulb inside the house. The height of the light from the ground is 2 meters, and the distance between the light and the light is about 3 meters. It is generally best to make up half of the day before dawn and after sunset, and you must keep the light steady. 4, carefully feeding the appropriate increase in energy levels in the feed to reduce the crude protein content, feed bean sprouts, green vegetables and other green feed, maintain calcium and phosphorus balance. 10% -15% of animal feed and mineral feed are added to the general feed. Feeding 3-4 times a day, regular quantitative, free intake. Supply clean and warm water. 5, scientific management to do a good job of environmental health, utensils should be regularly cleaned and disinfected; to ensure a quiet environment, work should be gentle, outsiders shall not enter the henhouse, prevent cats and dogs and other animals from harassment, and daily lighting switch, feeding, pick eggs, Cleaning should be carried out on time and in accordance with the schedule; feed must be stable and must not be replaced suddenly; at noon on sunny days, allow chickens to catch more light and exercise properly. Do a good job of prevention and prevention of chicken disease, find diseased chickens as soon as possible diagnosis and treatment, strict disinfection.
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