Egg duck breed-Youxian duck

The main results are as follows: (1) the producing area and distribution, also known as Youxian Ma Duck, is the smallest egg type breed in China. The central producing area is located in the Youshui and Shahe basins of Youxian County, Hunan Province, and is distributed in Dongting Lake area, Changsha, Xiangtan, Hanshou, Changde, Yiyang, Yueyang, Chenzhou and neighboring provinces of Jiangxi, Guangdong, Guizhou, Hubei, Shaanxi and Zhejiang.

(2) the physique is long and narrow, in the shape of a boat, with high forequarters and tight feathers. Male duck beak beans yellowish green, shins, webbed orange, black claws, iridescent yellowish brown. The upper part of the head and neck has emerald green and glossy feathers, the middle and lower part of the neck has a white collar, the front chest feathers are reddish brown, the wing feathers are grayish brown and the tail feathers are dark green. The whole body feathers of the mother duck are yellow and brown with black spots, forming a sparrow color, shins, webbed orange, and black claws. The deep hemp female duck accounts for about 70% of the duck flock, and the lighter feather color accounts for about 30%.

(3) production performance ① has an annual egg production of 200 million 250 eggs, with an average egg weight of 62 grams. White-shell eggs account for 90%, green-shell eggs account for 10%. The growth rate of ② is 1160g to 1250g at 120 days, 1200g to 1280g at 150 days, and 1300g to 1350g at 150 days. The first laying age of ③ female ducks is 110-130 days. When the mating ratio of male and female ducks is 1:25, the fertilization rate of breeding eggs is 90%-94%, and the hatching rate of fertilized eggs is more than 80%.