Leech farming is an emerging and promising aquaculture technique that has gained significant attention due to its high economic value and medicinal importance. Whitmania pigra, commonly known as the leech or "grasshopper," belongs to the annelid family and is widely used in traditional medicine for its potent anticoagulant properties, particularly hirudin. This natural substance has been valued for centuries and was even documented by Li Shizhen in the *Compendium of Materia Medica* during the Ming Dynasty, where it was noted for its ability to break up blood stasis, treat lumps, and promote circulation. Today, leeches are also being utilized in modern medicine for applications such as post-surgical recovery and cancer research.
In recent years, artificial leech breeding has become a viable option for rural communities, offering a low-cost, high-return business opportunity. Leeches are highly adaptable and can be raised in various environments, including cement ponds, rice fields, and even containers. They feed on small aquatic organisms like plankton, snails, insect larvae, and even animal blood clots. Feeding once a week makes this a low-maintenance practice, ideal for small-scale farmers. The process requires minimal labor, simple management, and low initial investment, making it an attractive choice for those looking to generate income through science-based agriculture.
The optimal water temperature for leech growth is between 15°C and 30°C. Below 10°C, they stop feeding, and above 35°C, their growth is negatively affected. These creatures are hermaphroditic, meaning each individual can reproduce, and they typically spawn from mid-April to May, laying 3–5 eggs at a time. After 15–25 days, each batch can hatch around 40 individuals. With proper care, a 667-square-meter pond can yield 50–60 kilograms of leeches annually, generating over 30,000 yuan in revenue. After deducting costs, net profit can reach approximately 20,000 yuan per year.
With wild leech populations declining due to environmental pollution and overharvesting, there is an urgent need for sustainable artificial breeding. Leeches are resilient, reproduce quickly, and require minimal space, making them ideal for utilizing idle land. Their low investment, quick return, and stable market demand make leech farming a reliable and profitable venture.
Our company offers high-quality, disease-free leech seedlings under the "China No. 1" brand, with each group priced at 480 yuan. We also provide an aquaculture CD that includes detailed breeding techniques. A single technology CD is available for 50 yuan. Additionally, we offer long-term buyback of dried leech products at 150–200 yuan per kilogram. This is a great opportunity for those interested in entering the growing leech farming industry.
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Xi'an Sentian Biotechnology Co., Ltd. , https://www.sentianbio.com