The artemia cysts, also known as brine shrimp eggs, are dormant eggs produced by the artemia biomass. They are brown granular in shape, with a smooth surface and uniform size. The number of cysts per gram can reach more than 200000. Their shell is hard and can withstand extreme environments (such as dry, cold, or boiling water). The dormant period can last for 3-5 years or even longer, and they can still hatch under suitable conditions
The protein content in yolk is about 60%, the fat content is about 20%, and it contains unsaturated fatty acids, 18 types of amino acids, and various minerals. It is a key source of nutrition for the molting and growth of aquatic animal larvae.