A look at the weight of ducks in the egg production rate of 80% or more, while the weight of ducks slightly reduce the trend, should be fed at an appropriate time animal feed; duck weight, the body has a tendency to gain weight, but the egg production rate is still 80 At the time of %, the roughage and green feed can be appropriately fed, or by controlling the feed intake, the ducks are not allowed to eat too much fine material.
Secondly, if the excrement of ducks is thick, loose and sticky, and the surface is lustrous, it can be divided into several segments after the foot is used to dial, indicating that the fine, coarse, and green materials are reasonably matched; the excrement is small and solid, the color is black, and the dial is dialed. Grainy, indicating that the amount of concentrated feed is too much, the amount of green material is small, digestion and absorption is not normal, the amount of concentrate feed should be reduced, and the green feed should be added; the excrement is light in color, not forming, and the discharge is spread out, indicating that the feed is fed Inadequate, low nutritional levels should be fed fine material.
Thirdly, if the egg shape is abnormal and small, it indicates that the nutrition is insufficient. It is necessary to add feed rich in protein such as bean cakes, peanut cakes and fishmeal to raise the content of crude protein in the diet to 20%, and increase the total diet properly. Volume; eggshell thinning, translucent, with trachoma, rough or soft shell, indicating poor feed quality, especially lack of calcium or Vitamin D deficiency, should add bone meal, shell powder, lime powder and other minerals and rich in vitamin D content The feed.
Cosmetics are compound mixtures made from various raw materials after reasonable blending and processing. There are many types of cosmetics raw materials with different properties. According to the raw material properties and uses of cosmetics, it can be roughly divided into two categories: base raw materials and auxiliary raw materials. The former is a main raw material of cosmetics, which occupies a large proportion in cosmetic formulations, and is the main functional substance in cosmetics. The latter is responsible for shaping, stabilizing or imparting color, fragrance and other characteristics to cosmetics. These substances are not used in large amounts in cosmetic formulations, but are extremely important. Cosmetics are chemical mixtures made of natural, synthetic or extracted substances with different functions as raw materials and processed through production processes such as heating, stirring and emulsification.
Collagen peptide, Arbutin, Coenzyme Q10, GSH, Cosmetic Raw Materials, lipoic acid
Xi'an Gawen Biotechnology Co., Ltd , https://www.ahualyn-bio.com