First, cold insulation. 1. The holes and cracks on the four walls of the duck house were sealed and the north window was closed to prevent the thieves from invading. 2. Repair the doors and windows, covering the doors and windows at night and in cold weather, or double plastic sheeting to keep warm. 3. Put the bamboo poles and wooden strips at a height of 2 meters below the roof of the house and cover them with plastic sheets or straw curtains to block cold air from entering the premises. 4. On the ground, dry and upholstered grass is laid on the ground to ensure that the ducks are not affected by cold. 5. Appropriately raise the stocking density, raising 8-9 eggs per square meter. Second, a reasonable preparation of feed. Appropriately increase the proportion of corn, rice and other energy feeds, so that the metabolic concentration of feed reached 12-12.5 MJ, to meet the energy needs of ducks. According to experiments, 2 grams of lard is added to each duck or duck in the winter and 1%-2% of animal fat is added to the feed to supplement the energy consumption of the duck body and to supply 1 chopped cabbage leaf. Green feed such as carrots and water lettuce can significantly increase the egg production rate of laying ducks. If there is no green feed, 20 grams of poultry vitamins can be added to 100 kg of feed. Third, hot feed warm drink. Mixing with warm water, so that the mixing temperature of about 38 °C is better, mixed with hot feed. To allow the ducks to drink warm water, do not let the ducks drink ice water or snow water, so as not to cause a drop in egg production. Fourth, add night food. At night around 12:00 plus night food, it is best to feed warm materials, this will not only increase nutrition, but also help keep the cold, can increase egg production by about 10%. It should be noted that the crude protein content at night feeding should not be too high to prevent the duck body from being over-fat and affecting the production of eggs. Fifth, add light. Ducks require 16 hours of light per day during the laying period. In the duck house, a 60 watt light bulb is installed at a height of 2 meters from the back of the duck, and a 60 watt bulb is installed on the back of the duck, and a lampshade is installed so that the light is concentrated on the duck body. The light should be uniform. Turn on the light at 5 o'clock every morning. Turn off the lights and turn on the lights at night. Experiments have shown that laying ducks that do not fill light can increase egg production by more than 20%. Six, noise ducks. The noise duck in winter can enhance the cold resistance and digestive ability of ducks, prevent the ducks from becoming fat and make the ducks produce more eggs. Before ducklings go into the water every day, ducks must be noised for 5-10 minutes and gently drive the ducks to make a slow circular motion in their homes. When about 80% of the ducks give off a strong cry, let the ducks go into the water. Keep quiet. To prevent abnormal sounds and keep quiet inside and out, especially to prevent rodents, weasels and cats, dogs and other animal pests from harassing and attacking ducks, creating a good environment for the high and stable production of ducks and ducks. Eighth, do a good job of disinfection and epidemic prevention. Every day, duck droppings should be removed in time to diligently change the grass and keep it clean inside and out. Every day after the ducks are released, all windows should be opened for ventilation. Disinfect the pens, food troughs and utensils once a week. Inject the vaccine at the right time to ensure that the duck is robust. China Agricultural Network Editor
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