The long-standing origin of the Yangtze River knifefish：
The Yangtze River knifefish, an ancient fish with a narrow, long and thin side, is named after its shape resembling a sharp knife. Its history can be traced back to the distant past 25 million years ago. In the vast historical books, the figure of swordfish can be seen everywhere. For example, in the “Shanhai Jing·Nanshan Jing”, there is a record of “Tiaoshui comes from its yin, and Beiliu is in the area, and there are many pelican fish", while the "Interpretation of Words" annotates: "Goku, drink without eating swordfish, Jiujiang has it." ”
Rare species of Yangtze River knifefish：
The Yangtze River swordfish, scientific name is the long-jaw swordfish, is a migratory fish of the genus Swordfish of the family Swordfish. It usually lives in the sea, enters the river from the sea in February to March every year, and travels up the river for reproductive migration. The Yangtze River knifefish has a narrow, long and thin body shape, a rounded head, a light blue back, a yellowish body, an off-white abdomen, a beige base of each fin, and a black edge of the caudal fin, which has unique biological characteristics.
Various ways to eat Yangtze River knifefish：
There are many ways to eat swordfish in the Yangtze River, among which steaming and braising are the most common practices. Steamed knifefish can maintain the delicious original flavor of the fish, which is simple and easy to make; braised knifefish is delicious and rich in taste. During production, the knifefish needs to be offal, washed and cut into segments, marinated in wine and salt, and then steamed or braised according to personal taste.
The rich nutritional value of Yangtze River knifefish：
Yangtze River swordfish has extremely high nutritional value and is rich in high-quality protein, unsaturated fatty acids, minerals and vitamins. Among them, EPA and DHA can lower cholesterol and blood pressure, and prevent blood from clotting into solids, which have good environmental effects on patients with hypertension and coronary artery hardening; vitamin B can help delay early aging; vitamin B12 helps treat anemia. In addition, the Yangtze River knifefish is also rich in minerals such as phosphorus, iron, calcium, potassium, sodium, and magnesium, as well as vitamins A, D, and E, which play an important role in protecting eyesight, enhancing immunity, and antioxidant.
