Jonk | Leech | جونک

Leech, the common name of leech, has been recorded in shennong materia medica and has high medicinal value. It grows and breeds in inland freshwater waters, and is a traditional Chinese special medicinal aquatic animal. Its dried products are used in traditional Chinese medicine after being soaked, and it has the effect of treating stroke, hypertension, removing blood stasis, amenorrhea, falling injury and so on. In recent years, leech preparation has been found to have special effects in the prevention and treatment of cardiovascular and cerebrovascular diseases and anti-cancer. In history, it was mainly caught by nature. Due to the abuse of pesticides and fertilizers in recent years, as well as the environmental pollution caused by "three wastes" of industry and agriculture, wild natural resources decreased sharply. With the in-depth development of medicinal value of leech, its market demand potential is huge.

South China began to catch natural seedlings around 1995, and the first artificial breeding was successful. There has been no breeding in north China for seedling and technical reasons.