How to raise leeches? breeding techniques and matters needing attention

Adjust water quality: water quality needs to keep fresh, at the same time to ensure a certain amount of dissolved oxygen, high temperature in summer, pay attention to appropriate water change. Overwintering management: leech dormancy in winter, early spring stocking has generally grown well, can be processed for sale, select large individual, strong growth of the seed, each mu should be reserved 10-15 kg, concentrated into the breeding pond for overwintering. Winter heat preservation: when the water temperature is 15-30℃, leech grows well, stops feeding below 10℃, and affects growth above 35℃.

Desmodium is also called leech, which has very high medicinal value. After drying, it can be used as medicine in its entirety. It has the effects of activating blood circulation, dispersing blood stasis and dredging channels. Due to its high application value, the market demand for it is also very large, and more and more people begin to enter the grasshopper breeding industry.

How to raise grasshoppers

1. Water quality regulation. Although leeches can grow in sewage environment, but due to artificial breeding is generally high density, so the water quality must be kept fresh, at the same time to ensure that there is a certain amount of dissolved oxygen, when the oxygen content in the water is less than 2 mg/L, leeches will generally surface and appear restless phenomenon, when the summer water temperature is high, must pay attention to appropriate water change.

2. Overwintering management. Leeches hibernate in winter. Generally, leeches bred in early spring have grown in winter and brought to the size that can be processed and sold. When fishing, pay attention to draining water first, and then fish up with nets. Pay attention to selecting seeds with large individuals and strong growth. 10- 15kg should be reserved per mu. Finally, they should be put into breeding ponds for overwintering.

3, winter insulation. When the temperature of the breeding pond is above 15℃, leech can feed and grow, so as to shorten the breeding cycle and achieve the purpose of feeding all year round. When the temperature of the breeding pond is between 15 and 30℃, leech grows well, stops feeding below 10℃, and affects growth above 35℃.

Grasshopper culture technology and matters needing attention

1, pay attention to escape: to build an escape wall outside the pond, the height is appropriate at 80-90cm or more. The inside of the escape wall should be plastered with cement and sand.

2. A large number of aquatic plants are stocked: mainly water hyacinth and duckweed. Leeches are more afraid of direct sunlight, so a large number of aquatic plants can be planted as snail feed, but also can play a role in shading, leeches can also lay eggs on it.

3. Feed feeding: about 50 kilograms of field snails should be put into each mu of water surface. In addition, livestock and poultry clots should be put into leeches once a week, but the clots should not contain salt. In order not to affect the water quality, do not directly put blood clots into the water. Blood clots can be placed on wooden blocks to float on the surface of the water. Leeches smell after they can climb to feed, blood clots must be fresh, that is, placed for no more than two days.

4. After introduction, leeches cannot be directly put into the pond: because leeches themselves will produce a layer of mucosa as a protective film during transportation, it is best to choose a cool and humid place around the pond, put leeches inside, and let them climb into the pond by themselves to reduce death.

What's the difference between leeches and leeches?

1, leech is leech, but its name is different, China's common broad-body leech, also known as horse leech, its body is larger, slightly spindle-shaped, flat and fat, 6-13cm long, 1.3- 2.2 cm wide. The back is generally dark green, with 5 black and yellow vertical stripes, which have the effect of anti-coagulation and breaking blood stasis. In traditional Chinese medicine, it is mainly used to treat thrombosis, vascular disease, glaucoma, blood stasis, nameless swelling poison, lymphatic tuberculosis and other diseases.

Common diseases of leeches

1, white spot disease: also known as ulcer disease, mildew, etc. Mainly caused by the original vivid multi-seed small melon worm, mostly by predatory aquatic insects or other enemy bites infected bacteria. Symptoms: leech suffering from this disease after its body surface will have white spots bubbles and small white spots movement is not flexible, swimming body imbalance, but also anorexia and other situations.

Gastroenteritis: A disease caused by eating spoilage or indigestible food. Symptoms: leeches suffering from this disease will lead to loss of appetite, lazy activities, anal redness.

3, dry disease: mainly due to the pond around the shore environment humidity is too small, the temperature is too high caused. Symptoms: leech suffering from this disease will appear after loss of appetite, less activity, emaciation and other symptoms, the body will appear dry, dehydration atrophy, the whole body black situation.

The application of leech is very wide. If you want to enter the leech breeding industry, in addition to mastering mature breeding technology, you also need to investigate the market situation and measure whether it is suitable for this industry according to your own conditions. Any breeding industry has risks. We must decide carefully.