Hair nutrition needs

Wool is a keratin protein consisting of 18 amino acids. It is rich in sulfur-containing amino acids and its cystine content can account for 9% to 14% of the total keratin protein. Rumen microbes can use the inorganic sulfur in the feed to synthesize sulphur-containing amino acids to meet the needs of wool growth, increase wool production and improve wool quality. In the dry matter of sheep diets, the ratio of nitrogen and sulfur should be maintained at 5 to 10:1. The wool that produces the nutrients and needs maintenance, growth, fattening, and reproduction is a keratin protein composed of 18 amino acids. It is rich in sulfur-containing amino acids, and its cystine content can account for 9% of the total keratin protein. ~14%. Rumen microbes can use the inorganic sulfur in the feed to synthesize sulphur-containing amino acids to meet the needs of wool growth, increase wool production and improve wool quality. In the dry matter of sheep diets, the ratio of nitrogen and sulfur should be maintained at 5 to 10:1. The nutritional needs of wool production, compared with the nutritional needs of maintenance, growth, fattening and reproduction, are small and far below the nutritional needs of milk production. However, when the crude protein level of the diet is less than 5.8%, the minimum requirement for hair production cannot be met. Hair production needs about 10% of maintenance needs. Copper is closely related to the production of sheep. In addition to the anemia, leanness, and obstructed growth and development of copper-deficient sheep, the bending of the wool becomes lighter and the hair is coarsely disordered, which directly affects the yield and quality of the wool. However, it should be noted that the sheep's tolerance to copper is very limited. The amount of copper in the dry matter per kilogram of feed amounts to 5 to 10 milligrams to meet the various needs of the sheep; if it exceeds 20 milligrams, it may cause sheep's copper poisoning. . Vitamin A is very important for wool growth and sheep's skin health. Summer and autumn are generally not easy to lack, and winter and spring should be properly added, the main reason is that after the yellow grass, vitamin A has been basically destroyed, can not meet the needs of the sheep. For sheep that are based on high-yielding diets or house-feeding, some green or juicy feed or silage should be provided to make up for the deficiency of vitamins.

Compared with nutritional needs, the proportion is small and far below the nutritional needs of milk production. However, when the crude protein level of the diet is less than 5.8%, the minimum requirement for hair production cannot be met. Hair production needs about 10% of maintenance needs. Copper is closely related to the production of sheep. In addition to the anemia, leanness, and obstructed growth and development of copper-deficient sheep, the bending of the wool becomes lighter and the hair is coarsely disordered, which directly affects the yield and quality of the wool. However, it should be noted that the sheep's tolerance to copper is very limited. The amount of copper in the dry matter per kilogram of feed amounts to 5 to 10 milligrams to meet the various needs of the sheep; if it exceeds 20 milligrams, it may cause sheep's copper poisoning. . Vitamin A is very important for wool growth and sheep's skin health. Summer and autumn are generally not easy to lack, and winter and spring should be properly added, the main reason is that after the yellow grass, vitamin A has been basically destroyed, can not meet the needs of the sheep. For sheep that are based on high-yielding diets or house-feeding, some green or juicy feed or silage should be provided to make up for the deficiency of vitamins.

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