Sansui duck is one of the best local egg-eating duck breeds in China. It has the characteristics of small size, early maturity, egg production, adaptability and strong feeding ability, and the meat is tender and delicious. Three-spotted duck feathers are tight, close to the body, small head, short mouth, high eye, iridescent brown, slender neck, wide body length, chest wide and prominent, sternum long, abdomen large and soft, cashmere developed The tail warp, the body drive is similar to the ship shape, and is about 50 degrees away from the ground plane when walking. It is slender, scorpion and scorpion are orange-red, claws are black, and green mirror feathers.

The three-headed ducks are mostly green-headed ducks, their heads are slightly thick, their mouths are flat, their mouths are black, their neck to chest feathers are brown, their back feathers are dark brown, their belly feathers are light brown, and their neck and tail are dark green. Feathers, protruding on the front chest, flat and long. The waist is small and the tail is long and the feet are slender.胫, 蹼 is orange red, claws are black. Adult female ducks are mostly dark brown, followed by shallow hemp and tile gray, and a few are white hemp and light yellow. The adult male duck weighs 1481±223.88 g, the female duck 1497±197.32, and the female duck starts production at 120-140 days old. The average laying volume of the female ducks is 246, and the average egg type is 65.95 g. The fertilization rate of the eggs was 91.6%, and the hatching rate of the fertilized eggs was 81.98%. The semi-net 膛 adult male duck is 69.5%, the female duck is 73.9%, the whole net 膛 male duck is 65.6%, and the female duck is 58.7%. The production age is 110-120 days, the annual output of eggs is 200-240, the average egg weight is 65.12 grams, and the shell is mostly white. The shell thickness is 0.31 mm and the egg shape index is 1.42. Sansui duck is resistant to rough feeding and has strong feed ability. Based on grazing, in the 20-day-old brooding, each average feeds 400 grams of rice, and the body weight can reach 250-300 grams. The ratio of meat to material is 1:1.5; spring ducks after 20-70 days of age, each Only 50-70 grams of corn can be fed on average, and the body weight can reach 1 to 1.25 kilograms. The ratio of meat to meat is 1:2.5 to 3.25; the autumn duck is mainly foraging and feeding, and does not feed. The ratio of male to female in Sansui duck is 1:20-25, the fertilization rate of fertilized eggs is 80%-85%, the hatching rate of fertilized eggs is 85%-90%, the female ducks are used for 2 to 3 years, and the male ducks are used for 1 year. The three-eared duck meat is analyzed by amino acid, and there are many kinds of amino acids, and the nutritional value of the meat is high. The crude protein content of Sansui duck meat is 41.35%.

Three-headed duck quality technical requirements First, the variety of local ducks. Second, the conditions of production conditions within the scope of production area of ​​the Qinshui River basin slow-flowing water surface, with warm and humid climate, no summer heat, no cold winter environment; clear water, rich in aquatic plants and plankton, rich in snails, loach, small fish, shrimp Animal feed. Third, feeding management Brooding period (0 to 21 days old): (1) Temperature requirements: The temperature is controlled at 27 to 30 ° C for the first week and 25 to 27 ° C for the second week. After that, it will drop by 3 to 4 °C every week, and it will not be heated when the outdoor temperature is close to the indoor temperature. (2) Lighting requirements: Ducks of 1 to 3 days old need 24 hours of light, and 3 to 10 days of age require 12 hours of light. (3) Feeding density: u003c20 per square meter, reducing the stocking density as the age increases. (4) Feeding: Feeding ducklings feed or half-cooked rice at the age of two days. After three days of age, small fish, shrimp and snails, snails and green fodder are replenished, and the daily feeding amount is gradually increased. 5 to 6 days of age can be changed from the original "foraging" (free eating) to "drinking" (fractional feeding). At 15 to 20 days of age, a hungry forced method is used to force the ducklings to eat grain and then transfer to the medium duck for grazing. (5) Water release: Ducklings are exposed to water at around 2 days of age; after a week, they can graze fields and river beaches. (6) Feeding methods: online raising or ground litter raising or cage raising, promoting online raising or cage raising. 2. Stocking during the day, entering at night, feeding in the morning and evening. Choose a slow-flowing water surface with a water depth of 0.3 to 0.7 m in the Lishui River Basin, rich in natural feed, and no obstacles for more than 25 days. The amount of ducks raised is determined according to the size of the pasture, 500 to 600 per group. (2) Diet: The combination of natural feed and full-price diet. Natural feeds are cereals, corn, alfalfa, wild fish and shrimps, and the like. (3) Out of the bar: After 60 days of age, the male duck weighs 1.45 to 1.68 kg, and the female duck is 1.40 to 1.68 kg. 3. Environmental and safety requirements: The prevention and control of the breeding environment and epidemic diseases must comply with relevant state regulations and must not pollute the environment. Fourth, slaughter 1. Duck source standard: healthy duck from the place of origin, in line with the source, breeding requirements, age requirements, weight requirements. 2. Five, quality characteristics Sensory features: (1) Living duck: the eye is high-necked like a boat, the mouth is yellow-footed and the orange-tailed fan, the male duck head is green and brown, and the female duck is plump and wide. (2) White striped duck: the skin is blue and white, the skin is thin and soft, the subcutaneous fat is less, the muscles are bright red, the cut surface is shiny and elastic; after boiling, the broth is milky white and rich in flavor. 2. Safety and other quality technical requirements: Product safety and other quality technical requirements must comply with relevant national regulations.

Apply to：
Producers within the Sansui duck producing area may apply to the Quality and Technical Supervision Bureau of Qiandongnan Prefecture of Guizhou Province for the use of the “Special Mark for Geographical Indication Products”, which shall be reviewed by the Guizhou Provincial Bureau of Quality and Technical Supervision and submitted to the AQSIQ for approval. announcement.