Sansui duck is native to the hilly valleys in the eastern part of Guizhou Province. It is centered on Sansui County and distributed in Zhenyuan, Xionggong, Tianzhu, Taijiang and Jianhe counties. Egg type duck species. Sanshui duck has early maturity and many eggs, and it is suitable for grazing in the rice production areas of hills, river valleys and basins, and is resistant to rough feeding and has a strong feed utilization capability. In 2002, there were 100,000 central production areas.
First, appearance characteristics
The three-shouldered duck has a slightly longer body, red-brown feathers on the chest, a white collar in the lower middle of the neck, grayish-brown dorsal feathers, a pale brown belly, and dark green feathers on the neck and waist. The female duck has a slender neck, body shape is similar to that of a boat, and feathers are mostly dark brown sparrow feathers. There are mirror feathers on the wings. The three-spike duck is iridescent brown, with orange and red pods and black claws.
Second, production performance
Three-spike duck weight: 1690 grams for males and 1680 grams for females. The slaughter rate of adult ducks was semi-net weight, which was 69.5% of the male and 73.9% of the mothers. The total net size was 65.5% and the female was 58.7%. The date of production is 120 days, 240 to 260 eggs are produced annually, and the egg weight is 65 grams. The eggshell is mostly white, followed by green. When grazing and rearing, only during the 20 days of brooding, each replenished 400 grams of rice on average, and the body weight was 250-300 grams; on the 20th to 70th day of grazing, the average amount of corn was only 50-50. 70 grams, weighing up to 1 to 1.2 kg. The age of production is 110 to 130 days, the annual egg production is 200 to 240, the egg weight is 63 to 65 grams, and the eggshell is mainly white, with a small amount of blue. The ratio of male to female is 1:20-25. The fertilization rate of eggs is 80% to 85%, and the hatching rate of fertilized eggs is 85% to 90%. The mother duck uses 2 to 3 years and the duck uses only 1 year.
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