First, for nutrition. Ducks housed in pens should provide a variety of nutrients that are adequate and complete, and in particular nutrients necessary for the growth of bones and feathers must be met. The feed formulation of bred ducks should be formulated according to the growth and development rules, and according to different breeds and feeding purposes, appropriate restrictions should be adopted for feeding, increasing the ratio of green and rough feeds, and adding appropriate amount of animal feed to promote feed digestion and absorption. In the rearing period, each duck needs about 10 kg of feed, which is fed 3 to 4 times per day and night. The interval between feedings should be as equal as possible. Concentrates are mostly fed with powdered ingredients and are supplied with clean water. During the summer period of the duck population during the breeding period, special attention should be paid to ensuring the cleanliness of the pens and drinking water, and prohibiting moldy feeds. Second, appropriate management. When rearing bred duck pens, management should pay attention to the reasonable density according to the season and the individual size of the bred ducks. In general, 6/m2 can be guaranteed at the end of the breeding period. Third, limit feeding. Mainly used for captive and semi-circle breeding ducks. Restricted feeding generally begins at 8 weeks of age and ends at 16 weeks of age. Restriction should be weighed before feeding. Samples should be weighed once every two weeks thereafter. Feed more green fodder and roughage as appropriate to keep the body weight within the required range of the corresponding species. Overweight or light weight can affect duck production. Egg volume. Fourth, the temperature is suitable. It is advisable to ensure that the temperature of growing ducks is 13 to 25°C. Excessively high or too low temperatures can increase the consumption of weight and body temperature. Excessive temperatures can also cause hair loss. Five, fill light at night. During the breeding period, the light must be maintained for 8 to 10 hours per day. The light should always be kept low at night and the light intensity should be 0.5 watts per square meter. In case of power failure, the candle light should be added in time. Six, touch ducks. The breeder should be in contact with the ducks to increase the guts of the ducks and prevent frightening herds. Breeding ducks are small, and the breeders' nerves are particularly sensitive. They should use feeding, water feeding, grass feeding, etc. to have more contact with the ducks. They are consciously trained to develop duck guts so as not to be affected by strangers or environmental changes. Group, causing serious losses. Seventh, drive away sports. Should pay attention to appropriate exercise to promote bone, muscle growth, prevent excessive fat, enhance physical fitness. The method is to drive the circle around the house every day at regular intervals, every 5 to 10 minutes, 3 to 4 times a day of exercise, but also in the quarters or near the place to drive sports. Eighth, strengthen prevention of disease. Diligently sweep the duck houses, diligently remove residual dung residue, and maintain good ventilation. Drinking utensils and drinking water should be cleaned once a day. The duck house is regularly sterilized. From 35 to 50 days of age, 2 ml of cholera vaccine was injected into each duck muscle; once a day of 100 days, another cholera vaccine was injected. 70 to 80 days of age injection of duck dwarf attenuated vaccine; for only 1 year of feeding ducks can be injected once, use more than 2 years of laying ducks and then injected once every other year.
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