Earthworms, often referred to as "crickets" or "Qufu" in some regions, are part of the Oligochaeta class in zoology. It is estimated that there are over 200 species of earthworms, with several commonly used varieties such as Ai Shengmiao (Red Dragonfly), Huanmao Dragonfly (Qingmiao), and Hebi (Chinese Medicine Land Dragon). These species are widely utilized in traditional medicine due to their rich nutritional content and therapeutic properties.
First, let's explore the collection methods. One common technique is the irrigation method. Since earthworms are sensitive to water, this approach involves pouring water into their burrows, encouraging them to surface for easy capture. This method is especially effective in spring paddy fields. Another method is the pile-feeding trapping technique. By piling up fermented feed—such as composted vegetable waste or organic matter—in areas where earthworms are likely to gather, you can attract them effectively. The pile should be around 30–40 cm high and 40–50 cm wide, with no restrictions on length. After 3 to 5 days, earthworms will naturally congregate. For better results, mixing 50% soil with the fermented feed can significantly improve the trapping efficiency.
The digging method is a more manual and straightforward approach, typically used by small-scale farmers. While it is simple to execute, it is not very efficient compared to other techniques. Lastly, the chemical capture method involves using a 15% potassium permanganate solution, applied at a rate of about 7 liters per square meter. This causes the earthworms to rise to the surface quickly, making them easy to collect. Alternatively, a 0.55% formaldehyde solution can also be used, at a rate of 13.7 liters per square meter.
Once collected, earthworms need to be processed into medicinal materials. A common method involves soaking them in warm water to remove the mucus from their bodies. After washing, they are mixed with ash and dried. In Guangdong, a traditional technique involves adding some tea leaves and hot sage grass to the earthworms, grinding them into a paste, and then mixing with clear water. This mixture is poured into a "ground dragon," allowing the scent to spread. Afterward, the earthworms are combined with straw ash and placed into small cones or acupuncture needles. They are then nailed onto a wooden board, and a knife is used to carefully open the abdomen from head to tail. The internal soil is washed away with warm water, and the cleaned earthworms are spread on a mat to dry. On rainy days, it's crucial to drain them promptly to avoid spoilage, resulting in what is known as "earth dragon meat."
Other Medical Implant,Cannulated Cancellous Screw,Cortical Bone Screw,Locking Plate Screw
Changzhou Ziying Metal Products Co., Ltd , https://www.ziyingmetal.com