Medicinal and artificial breeding techniques of grasshopper
I. Medicinal and breeding prospects of leech
The grasshopper, scientific name Shuizhe, is a valuable medicine. In many countries in the world, there has been a habit of using leeches for medicine. The main role of grasshopper: First, blood stasis and blood stasis, and second, blood accumulation, for the treatment of women with blood stasis, uterine bleeding embolism. Today, proprietary Chinese medicines made from leech, such as Dahuang Pills,
Han's I-speed Kang, Bailao Pills, Shengxi Xuexinning, etc. have all been put into mass production, and supply exceeds supply. In China alone, the demand for dry grasshopper products amounts to several thousand tons per year. Japan and South Korea relied on imported grasshoppers from China long ago.
With the widespread use of chemical fertilizers and pesticides and the predatory capture of grasshoppers in recent years, the resources of wild grasshoppers have been declining, which is far from meeting the needs of medicines. Due to the scarcity of supplies, artificial breeding is now underway in many places. The grasshopper has strong vitality and rapid reproduction (herbaceous hermaphrodites, each grasshopper breeds 60 to 90 small grasshoppers each time), and is easy to feed and manage. Artificially cultivated grasshoppers can vary in size, investment, and efficiency. With an aquaculture pond on the surface, they can harvest 400 kilograms of finished products worth more than 20,000 yuan. This is indeed a promising way to ensure prosperity for rural households. .
Second, the medicinal leech breeding characteristics
1. The adaptable strong herb leech adapts particularly well to biological environmental changes and can be cultivated throughout the country. Regardless of the alpine plains, medicinal leech can adapt. You can also use the house behind the house, garden, balcony, pond breeding.
2. Amazing ability to fight hunger Medicinal leech, though gluttonous, has a large amount of food but is very resistant to hunger. Even if you are hungry for a long time, you are not afraid.
3. Breeding techniques are easy to grasp. Medicinal leech eats invertebrate aquatic insects. If the proportion of aquatic insects is mixed with that of medicinal leech, it is not necessary to feed them. If the water quality is well managed, it can grow well.
4. Medicinal leech individuals large, generally dozens of times larger than ordinary leech.
5. With less labor, men, women and children can use their spare time to breed.
6. The grasshopper is hermaphrodites and mating all over the body. So long as good provenances are introduced, they can reproduce on their own year after year.
Third, the artificial breeding technology of grasshopper
1. Site selection Jianchi choice sheltered sunny, drainage and irrigation convenience at the building pool. The pool is 3 meters wide, 1 meter deep and unlimited in length. The pool is located diagonally at the inlet and outlet, and some stones and branches are placed at the bottom of the pool for grasshoppers to inhabit. Small-scale farming can use water holes, ponds and ponds. Into the drainage entrance must use barbed wire or plastic mesh cloth to prevent the grasshopper from fleeing.
2. It is better to use seedlings to raise money for artificial breeding (commonly known as cow grasshopper), and brown earthworms can also be put here. Money wanders in rice fields, ponds, streams,
Very common in the jungle, when catching for species should pay attention to identification, seeding standards for every cubic meter can be stocked about 10,000. Selection criteria are: robust, non-injury, large specifications (20 to 30 grams of the best), such a large amount of spawning eggs, hatching rate, stocking for 10 months can be processed for sale.
3. Baits feed on the blood of staples such as snails, cockroaches, frogs, turtles, cockroaches, and mammals. Artificial breeding can use various kinds of blood mixed feed, grass powder, and even feces, etc. Each mu can also be put one-off live snail about 25 kg, let it breed naturally, grasshopper free to feed. Animal blood is fed once a week. The specific method is: put the blood clots of pigs, cattle, sheep and other animals into the pool, put a piece every 5 meters, and the grasshopper will soon gather up after smelling the smell, and it will dissipate after smoking.
4. One of management techniques is to regulate water quality. Although the leech can grow in the sewage, but due to the high density of artificial breeding, the water quality should be kept fresh, and at the same time to ensure a certain amount of dissolved oxygen, when the oxygen content in the water is less than 2 mg/l, the leech will surface and appear. Uneasy phenomenon. In summer, the water temperature is high. Pay attention to changing the water. The second is wintering management. Grasshoppers are dormant in winter and stocking in early spring has generally grown well and can be processed for sale. When catching, release water first and then use net to pick up. Select large, well-growled species, and leave 10 to 15 kilograms per acre, focusing on wintering in the breeding pool. When the temperature of the winter insulation tank is above 15°C, the leech can feed and grow, so as to shorten the breeding cycle and achieve the purpose of feeding for the whole year. When the water temperature in the rearing pond was between 15 and 30°C, the grasshopper grew well and stopped feeding at temperatures below 10°C, affecting growth above 35°C.
5. Breeding grasshopper breeds quickly and has strong regeneration. The Yangtze River valley is generally spawned from late April to mid-June. Artificially cultivated grasshoppers, which are produced in the mud on the water side of the rearing platform, are oval in shape. Each leeches has about 4 calving calves and about 16 to 25 days after the pupa output, a small grasshopper is hatched, and 13 to 35 can be produced in each pupa. The grasshopper is tea-yellow and grows rapidly. It grows an average of 20 millimeters in length within one month after hatching.
6. Transport and transport grasshoppers are usually transported with them. The specific method is as follows: Put some water grass in the gauze bag, after the grasshopper is installed, tie the bag mouth.
Put it in a basket or basket and you can carry it away.
7. processing method
(1) Water scalding remove the washed leeches and concentrate them into pots and other utensils. Suddenly pour the boiled water. The hot water drowns the grasshopper 2 to 3 fingers. It is appropriate to wait for about 20 minutes after the grasshopper dies. The sun is clean.
(2) Lime Method Remove the cleaned grasshopper and put it in lime for 20 minutes. Then remove it and dry it or dry it. Sift the lime powder.
(3) Wine boring method can pour high spirits into the grasshopper, which can be submerged.
(4) The larvae caught by the sun will be worn with wire and suspended directly under sunlight.
The above method is for reference. Other issues that need attention:
(1) The water scalding method is prone to rising tides when drying, and can be deflated with iron nails or bamboo tips while drying.
(2) Choose sunny days. Cloudy weather can not be easily exposed to spoilage. If it is suddenly rainy, it can't be exposed to the sun, and it should be placed on a firewood and dried with fire. But do not bake roasted yellow.
(3) Dried grasshoppers are sealed in plastic bags to prevent moisture absorption and mildew. The standard of dryness can be broken by hand, and the ratio of fresh dried products is: about 7 kg of large grasshopper can dry 1 kg of dry goods, and about 8 to 10 kg of small grasshopper can dry 1 kg of dry goods.
High-quality dried grasshopper standard: It is a natural flat spindle shape with a back, slightly elevated, flat ventral surface, crisp and easy to break, and the section is gelatinous and glossy. Store it in a dry place to prevent insects.
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