During the winter period, the ducks and ducks manage several key links, which will enable high yields in the coming year to ensure aquaculture benefits. The rearranged herds were grouped on ducks, eliminating old and sick ducks and low-producing ducks to reduce deaths and feed consumption. It is very important to control the temperature and temperature of wintering ducks to keep them warm and cold. Keeping the room temperature at 5°C or higher in the middle of the night can ensure high egg production rates. Thick grass is covered with 30 cm thick grass in the egg production area around the inside of the duck house. After the eggs are smashed in the morning, the old grass in the egg production area can be spread in the duck house. Every night before the duck enters the house, add it. New grasses produce egg nests and gradually accumulate mat grass. Clearing the old mat grass every few days will not only save warmth but also save manpower. During the overwintering period, nutrient ducks must appropriately increase the proportion of corn and other energy feeds, and the amount of feed should be increased by 10% to 15% compared with summer and autumn, and sufficient green feed should be provided. Add 3% to 5% of fat in the feed, the better. Adding night foods to feed once at night can not only increase the nutrition of ducks and ducks, but also help the ducks keep warm and increase the egg production rate by more than 10%. However, at night feeding should be noted: First, we must provide warm feed, the second is that night food in corn and other high-energy feed, protein feed should not be too much. Hot-feeding concentrates need to be prepared with hot and cold water, drinking water also needs to be fed with warm water, and the temperature is best around 38°C. Fill light requirements can not be less than 16 hours of light each day. The amount of 1 ç› 60 watt bulbs per 30 square meters can be filled in the duck shed. The bulb is 2 meters high from the back of the duck and is fitted with a lampshade. The light is turned on at regular intervals. Practice has proved that after the light can increase the egg production rate of 20%. More water in winter feeding ducks swim 1 or 2 times a day, can increase the amount of activity and improve the resistance of ducks. Splashing is generally performed when the temperature is high at noon. The density of high-density wintering ducks is preferably 8-9 eggs per square meter to facilitate self-insulation of ducks. As the wintering ducks for epidemic prevention diseases need to be insulated, ventilation and ventilation are affected, and care should be taken to ensure cleanliness in the house. After the ducks go out, they have to open windows for ventilation. Once the diseased duck is found, isolate the diagnosis and treatment promptly and conduct emergency disinfection of the duck house.
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