(1) Kind of duck selection: The duck requires a large head, a strong body, a lively, green head and neck, and strong mating ability. Mother ducks require small heads, slender necks, and large eyes. The weight of the duck should not be less than 1.25 kg, and the duck should not be less than 1 kg. Ducks generally use 1 to 2 years. (2) Breeding proportion: The proportion of male and female ducks mating should be 1:5 to 1:10, depending on the weather and the fertilization rate of the eggs, the proportions should be appropriately adjusted. (3) Carefully feeding: Add bone meal and shell powder in time during laying eggs; increase the protein content before the peak of egg production. Feed 4 times a day. Supplement artificial light 2 to 3 hours in the morning and evening so that the daily light hours reach 15 hours. During the production period, the stability of the feed should be taken care of, and it should not be changed easily; if it needs to be changed, there should be a transition period of 7 days. Water supply and cleaning must be ensured. (4) Scientific management: The duck house should be kept clean and sanitary. It is necessary to pave the grass around the wall and create more nests to lure the duck to lay eggs at night. Open doors and windows in the morning so that late-producing ducks can still produce eggs in the house. Immediately after the duck, pick eggs. For the second year of breeding ducks, the fall is the second production period, at this time can increase the autumn animal husbandry, field feeding, in order to reduce feeding, save costs, should be supplemented after late autumn. Pay attention to the severe changes in the weather, winter cold, summer heatstroke. At the same time, the quiet environment of the duck should be maintained at the same time to prevent all kinds of stress. In the fall and winter nights, you must get up and go to duck to prevent obesity. The breeding density is 8 to 10/m2.
Whitening And Clearing Speckles Raw Materials
Slow metabolism, excessive exposure to the sun, etc. can cause skin pigmentation, daily attention to skin moisture, do not stay up late, eat more food rich in vitamin C, avoid sun exposure, improve the endocrine system, you can choose laser whitening spot removal, the effect is fast and obvious.
Whitening And Clearing Speckles Raw Materials,Skin Whitening,Natural Dipotassium Glycyrrhizinate Cosmetics,Polyphenols Powder
Shaanxi Zhongyi Kangjian Biotechnology Co.,Ltd , https://www.zhongyiherbs.com