Swordfish and hairtail are completely different. Swordfish is a freshwater fish and hairtail is a saltwater fish.

1. saury

The scientific name of Coilia elata, also known as Coilia elata and Coilia elata, is a migratory fish, which is also known as one of the three delicacies of the Yangtze River in China along with puffer fish and shad. Swordfish is long and narrow, thin on the side, quite like a sharp knife, silvery white, tender in meat, but with many hairlike spurs. The meat tastes delicious, fat but not greasy, and has a slight fragrance. Some common species of swordfish are: seven-star swordfish, striped swordfish, African swordfish, imperial swordfish, golden swordfish (albino species), devil swordfish and so on.

Every100g of saury contains protein18.4g, fat 4.6g, phosphorus, iron, calcium, zinc, magnesium, vitamins A, B 1, B2 and other nutrients. Swordfish contains more unsaturated fatty acids, and the carbon chain of fatty acids is longer, which has the function of lowering cholesterol. It is an ideal nourishing food for the elderly, children and pregnant women. Swordfish has certain medicinal value. According to ancient and modern medical and aquatic medicinal books in China, saury has the functions of nourishing liver, expelling wind and stopping bleeding, and has good effects on treating bleeding, sores, carbuncle and other diseases.

Step 2: hairtail

Hairtail is a fierce carnivorous fish, with developed and sharp teeth, long dorsal fin, small pectoral fin, degraded scales, extremely long dorsal fin and no ventral fin, and it is a migratory fish.

Hairtail has certain medicinal value. According to ancient and modern medical and aquatic medicinal books in China, hairtail has the functions of nourishing liver, expelling wind and stopping bleeding, and has good effects on treating bleeding, sores, carbuncle and other diseases. Fish scales are the raw materials for preparing antipyretic and analgesic tablets and anti-tumor drugs. Scales contain a variety of unsaturated fatty acids, which have a significant effect on lowering cholesterol. It is suitable for people with chronic illness, blood deficiency, dizziness, shortness of breath and fatigue, eating less and losing weight, and malnutrition. Chinese medicine believes that it can stimulate appetite, warm the stomach and tonify deficiency, as well as moisturize the skin and beautify the face, but people with sores and scabies should eat less.