Due to different processing raw materials, the nutritional components of shrimp powder are quite different, and its crude protein content is between 36% and 50%, but a considerable part of crude protein is nitrogen in chitin. Shrimp powder contains 2% ~ 3% fat, most of which are unsaturated fatty acids, so the utilization rate is high.

Shrimp powder is also rich in choline, phospholipids, cholesterol, calcium and phosphorus. Shrimp powder contains a good colorant-astaxanthin.

Shrimp powder is a common raw material in shrimp and crab feed. Shrimp and crab have good food attraction and coloring effect, and the dosage is generally between 3% and 8%. Shrimp shell powder (also known as shrimp bran) is the inedible residue of shrimp head, shrimp shell and tail brain. ) shrimp left in the process of processing, dried and made into powder products.

Generally, it contains crude protein 35%, lipid 2.5%, cholesterol 1%, high inorganic salt content and reduced astaxanthin. Shrimp and crab can play the role of coloring and attraction, and its addition amount is between 3% and 6%.

The content of this article comes from: The History of Science and Technology Development of Agriculture and Animal Husbandry in Tibet by China Agricultural Publishing House.