Spot-billed mallards have moderate body size, excellent meat quality, and high fertility. In the wild state, spot-billed mallards naturally hatch and brood. In order to make full use of wild duck resources to protect the diversity of wild duck breeds and meet the market needs, in 1999 Cixi began to engage in domestication and breeding experiments of migratory spot-billed mallard ducks, and carried out research on artificial hatching and brooding. In 2004, nearly 10,000 feathers have been hatched by wild ducks, and the survival rate is over 97%. Wild ducks eat small food, swim and fly, and have strong resistance. The domesticated wild ducks must adapt to their biological characteristics and living habits. In particular, they must strengthen feeding and management during the brooding period. Ducklings are small in size, short in fluff, and have poor body temperature regulation. Broodhouse temperature requirements: 1 to 3 days of age to maintain 28 to 30 °C, 4 to 7 days of age to maintain 25 to 28 °C, 8 to 14 days of age to maintain 22 to 25 °C, 15 to 30 days of age to maintain about 22 °C. Avoid hot and cold. [control duck house humidity] Although the ducks like water, they are afraid of dampness. Therefore, the duck house is required to be clean and dry, with a relative humidity of about 65% within 10 days of age, and about 60% after 10 days of age. Always work diligently and frequently change litter. During the rainy season, pay special attention to the humidity inside the house. ã€Note the release time】 The first time the wild ducks release water, usually 24 to 26 hours after hatching. Small sprayers (or watering pots) can be used to spray the duck body. 2 to 3 days of age began to use the water bath method for launching training, every day, every afternoon, every time about 5min, the water temperature is best not less than 15 °C. At the age of 7 days, the pond was drained for 3 to 4 times a day, and the water release time was 5 to 30 minutes. Wild ducks have higher requirements for water quality, and they should constantly change pool water. Ducklings should change water once a day for 7 days, change water once every 3 to 4 days after 7 days, and change water once every 2 to 3 days during high season. [feeding management] Wild ducks are omnivorous, like small fish, shrimp, shellfish, insects, cereals and aquatic grasses, so the feed requires comprehensive nutrition and variety. The start of eating is generally about 15 minutes after the first discharge. Starters can choose to use raw rice (need to drain after washing with water) plus 10% glucose feeding. It is also possible to feed meat broiler crushed granules directly. As the age increases, it gradually feeds pellet feeds that are easy to digest, have good palatability, have a slight smell, and are easy to feed. Requirements of crude protein more than 20%, metabolisable energy 11. ~ 12.7MJ/kg, calcium and phosphorus were 0.9% and 0.5%. Duckling digestive function is not yet sound, feeding less frequently when feeding, drinking water before each feeding. Ducklings within 10 days of age were fed 5 to 5 times a day, including 2 feedings at night, 4 to 20 feedings per day for 11 to 20 days, and 1 to 2 feedings at night, and 4 feedings per day at 20 days of age. Feed it once at night. Ducklings like to play on piles, even when the temperature is appropriate. In order to avoid crushing and bruising, duckling management requires small groups to raise. Usually 25 birds per m2 are raised within 1 week of age; 20 birds are fed from 1 to 2 weeks of age; 15 are kept at 2 to 3 weeks of age. Each group is suitable for about 5 feathers. Intensify on duty within 2 weeks and find that the piles should be separated in time. Disease prevention and prevention work In addition to doing routine sanitation and disinfection work during the brooding period of ducks, emphasis should be placed on the prevention and treatment of E. coli and bird flu. E. coli disease occurs in 20 to 30 days of age, and ciprofloxacin and gentamycin can be used for prevention and treatment. The timing of the first immunity of bird flu is best determined after the detection of maternal antibodies. At the same time to prevent rat damage, etc., in order to improve the survival rate.
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[maintain suitable temperature]