In order to maintain the egg production rate of 80% or more in winter in captive ducks, the following technical measures may be taken:
First, cold and warm: the temperature in the night shed should be maintained above 5 °C. Therefore, the dwellings should be enclosed and enclosed, and the perimeter of the sheds can be made of straw or wheat straw to enclose the grass. The outside is then covered with a layer of nylon film. The cover grass on the roof should also be thickened, and the stocking should be appropriately increased. The density can be increased to 9 per square meter, and the shed can be kept dry.
Second, thickening mat grass: In the duck house wall around the laying area of ​​more than 30 centimeters thick grass. After the egg is collected in the morning, the old grass in the nest is spread in the duck house. Before the ducks enter the house every night, some new grass is added for the production of the egg nest. This gradually accumulates the grass, and once a few sunrises, it keeps warm and Can save manpower.
Third, the deployment of feed: Winter ducks should be appropriately increased the proportion of corn and other energy feed, but also supply green feed or regular vitamin A, D, E. Some duck farmers add 3% to 5% of fat to the feed, and chopped cabbage leaves and carrots are served once a day at noon. The effect is very good. When the room temperature in winter is 5°C -10°C, the amount of feed should be increased by 10% - 15% compared with spring and autumn.
Fourth, increase feeding night food: generally feeding at night than feeding ducks can increase egg production by about 10%, night feeding should pay attention to, first, enough to drink water, and second, the protein feed at night can not be too much .
V. Supply of warm water: When the temperature is low, if ducks drink ice water or very cold water, they can easily cause stress and reduce the egg production. Therefore, it is better to supply warm water to ducks. Such as feed well water to play with.
6. Supplemental illumination: In winter, due to the shortening of natural light, the activities of the pituitary gland and endocrine glands of ducks are reduced, which affects the production of eggs. Therefore, artificial lighting must be added. It is generally required that the daily continuous light time is not less than 16 hours. A 60 watt bulb can be installed in the duck shed for every 30 square meters. The light bulb is 2 meters high from the back of the duck, and the lampshade is installed so that the light can be concentrated on the duck. Physically, turn on the lights on a regular basis sooner or later. Tests have shown that filling light ratios can increase egg production by 20%-25% compared to non-filling light.
VII. Normal playing in the water: In winter, ducks are fed 1-2 times a day. If the temperature difference between indoor and outdoor is too large, all windows should be opened gradually before the ducks are released, and they must not be fully opened at one time. And after 4-5 laps in the house, the ducks were forced into the pool to swim in the pool when about 80% of the ducks screamed strongly. In severe climate, when the temperature was below -5°C, the ducks did not shout loudly and could not swim.
VIII. Reducing stress: The metabolism of ducks and ducks is strong. Particularly sensitive to contaminated air, breeders should have no irritating sensation when they enter the duck house. Usually pay attention to ventilation, whenever the water, ducks should be open to all windows ventilation. We must also do a good job inside and outside the house to prevent animal pests such as mice, weasel and dogs from attacking.
Nine, disease prevention and control: regular twice a year, in the middle of January and July respectively, 60 ducklings above the age of 60 ducklings and ducklings during the immature period were injected with duck quail vaccine for 6 months, which can produce strong Immunity. The duck house should be thoroughly disinfected at least once every 15 days. The bedding should be kept dry and clean. Ducks have a habit of loving cleanliness. If duck houses are dirty and moist, duck feathers are easily contaminated. If the feathers are dirty, if the weather is cold, do not allow the ducks to enter the paddling pool for cleaning, otherwise the ducks will be suspended due to feathering. At the same time, the duck house is sterilized once a week with quicklime.
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