Hydra farming technology

Section 1 Morphological characteristics and living habits 1. Morphological characteristics The water fleas are long, large, flat and flat, and they are slightly woven and shaped. The body length is generally 6~13 cm, width can reach 1.3~2 cm, and large body width can reach 3.5 cm. The back is usually dark green and there are five vertical lines formed by yellow and black stripes. There is a yellow longitudinal strip at the lower side of each side. The belly is yellowish and mixed with many irregular dark green spots. Body section 17, body ring number 107, on the back of section 7 can be seen 4 rings, only 3 rings in the ventral surface; full body section in the middle body has 5 rings. Reproductive zone is obvious, located in the 24-48 ring. The male gonopore is in the 33-34 ring groove and the female gonopore is in the 38-39 ring groove. The front suction cup is small, there is a mouth in the mouth, and there are two rows of blunt tooth plates on the chin. 2. Living habits Wide body gold wire is used to eat snails and clams. It is commonly known as "field snail" in Zhejiang. In the winter, the soil wades through the winter and was unearthed in the Yangtze River basin around the end of March or early April, and in the north in the middle and early April. However, if the temperature is still low, the unearthed golden ray often hides in the mud tangled by the submerged grass and silt. When the weather is warm, they are active at the side of the field and sometimes stretch their bodies. They stay in the ditch and head toward the incoming water. Spawning period is in May, and some can last until mid-June. Eggs are produced in fields. The eggs are oval in size, measuring 22 to 33 mm and 15 to 24 mm, with an average of 26.6 mm and 18.7 mm. The decidua is divided into two layers: the outer layer is a sponge-like protective layer and the inside is a decidua. Excluding the sponge layer, the size of the egg pods was 17-24 mm and 11-27 mm, with an average of 20.4 mm and 14 mm. Egg weight 1.1 to 1.7 grams, an average of 1.68 grams. Cubs are hatched in late May. The number of pups in each cockroach is 13 to 35, and the majority is about 20. The cubs climbed out of the openings (mainly from the more pointed ends) at both ends and left the pods when they coiled in the mesh of the sponge. If there are more cubs in the pupa, they often hatch more than 10 or more than 20 larvae on the first day. The remaining larvae are hatched the next day. The cubs are 6.2 to 19 millimeters and 2.2 to 3.6 millimeters in average, and the average is 13.5 millimeters and 2.9 millimeters. . Cork was yellow when it was first hatched, and 7 fine purple-grey-grey lines were arranged on both sides of the body's back. As the larvae grow, the color between the vertical lines gradually changes, forming five vertical lines consisting of two types of stripes. The cubs are wide in shape and prominent in the back, so they are easy to identify. Cubs need to grow through 2 winter maturities and live for more than 5 years. When the wide-body gold wire is mated, the head ends are opposite, and the male hole is exactly opposite to the other female hole, but only one of them is fertilized. About 1 month after mating, calving starts. During calving, a thin mucus is secreted from the genital tract, which is intercalated with air and forms a soapy foam. It then secretes another mucus, forming a layer of ovum, surrounding the genitalia, and the egg (embryo) from the female hole. The output falls in the cavity between the wall and the body, and finally it secretes a protein solution into the cockroach. Afterwards, the kinship gradually receded from the back and exited. At the same time, the former sucker glands secreted and formed plugs, plugging the openings at the front and rear ends of the bowl, and the whole calving process took about half an hour. After the eggs have been produced in the soil for several hours, the walls of the walls harden, the foam outside the walls air-drys, and the walls break, leaving only honeycomb or sponge protective layers of pentagonal or hexagonal short columns. The fertilized eggs develop directly in the cockroach and hatch from the 16th to the 25th. Generally, 1 adult can produce 1~4 eggs. The young cubs can live independently when they hatch, and they can grow to 10 grams/barrels before winter, usually 6~8 grams/barrels, and can grow to 20 grams/barrels or more in the second year. Section 2 Medicinal Functions 1. The leeches are commonly known as grasshoppers. According to the “Compendium of Materia Medica” records, because they have gold lines on both sides, they are also called gold thread worms and money pythons. They are special aquatic animal species and have many medicines in medicine. With the function, medicine can cure a variety of diseases. There is a type of hirudin in saliva, which is the world's strongest thrombin inhibitor. Hirudin inhibits thrombin, which prevents fibrinogens from forming fibrin, thereby inhibiting thrombus formation. Ancient use of this feature of mink, use it to suck the pus and blood of patients with trauma, to achieve the purpose of cleaning up congestion; Chinese medicine internal medicine will dry the body of the gun into medicine, treatment of lumps, blood stasis, amenorrhea, bruises and so on. Further studies in modern medicine have demonstrated that Minamata is used to prevent cardiovascular and cerebrovascular diseases and have anti-cancer effects. Therefore, in recent years, with the continuous development of the medicinal scope of leeches, proprietary Chinese medicines that are formulated and manufactured with leeches, especially cardiovascular and cerebrovascular diseases, have gradually increased. Such as Shanxi, Jilin, Guangdong, Hong Kong, and other address pharmaceutical companies to use a large number of leeches production Xin Fukang thrombolytic capsule, instant dissolve Shuan Tang, Wufu Naoxinkang, Huoxue Tongmai capsules, Zhuyu Huoxue capsules and other treatment of cardiovascular and cerebrovascular diseases The medicines are constantly on the market. 2. The artificial breeding of leeches is simple and easy. The leeches have strong adaptability, strong hunger-resistance, and strong disease resistance. The artificial breeding of leeches is not limited by regional conditions and can be maintained in ponds, pits, tanks, and barrels. With plankton in water, small insects, snails, river rafts, animal blood clots, earthworms, and humus on the soil as raw materials, they can be fed once a week. It has the advantages of not occupying labor, extensive and simple feeding management, low feed cost, high reproduction rate, silent, odorless, no pollution, less investment, and quick results. 3. The market prospects of Minamata, as Minamata is a valuable medicinal resource, it has many medicinal functions in medicine and is a very valuable animal medicine. With the development of an aging population, the number of patients suffering from cardiovascular and cerebrovascular diseases (hypertension and heart disease accounts for 2% to 5% of the population), coupled with people’s preference for Chinese medicine products, will increase the demand for leeches. Statistics show that at the end of the 1990s, the amount of mink in the market was about 100 tons, and by 2000, the market usage had soared to 180 tons, and then it was increasing by about 20 tons every year. After 2008, the amount of mink increased by more than 30 tons per year, to 340 tons that year, and then to 370 tons in 2009, and to 400 tons in 2010. It is predicted that the amount of mink will reach 450 to 500 tons in 2011. The price also increased from 150 RMB/kg in 2002 to 800 to 850 RMB/kg in 2011. Countries in Japan, South Korea, and Southeast Asia have also imported large quantities of leech from China. Wild fishing resources have far exceeded market demand. Therefore, the artificial breeding of leeches has a very broad prospect. The reasons for the rise in the prices of leech come from several sources. On the one hand, some drug companies in the Mainland and Hong Kong have a large demand for leech; on the other hand, the consumer market in Europe and the United States is very large. In recent years, Japan and Southeast Asian countries have also come from a large number of countries. Imported mink has caused domestic demand for leeches to increase exponentially. Third, pollution of the environment caused by the heavy use of pollutants from pesticides, fertilizers, and chemical industries in recent years has led to sharp declines in wild leeches resources. Fourth, artificial breeding leeches have just started in China. There are not many leeches farms with scale. China began to carry out artificial breeding of leeches in 1995 and achieved success. The net profit per acre is more than 20,000 yuan, which is 7-10 times that of the current fishery and the economic benefits are considerable. Due to the promising market for artificial breeding leeches, some insightful people have begun to organize large-scale artificial breeding to seize the market and have achieved significant economic benefits. Section III: Breeding Technology 1. Site selection and construction of pools: Choose pools that are convenient for drainage and irrigation and sheltered from the sun. The water depth in the pool is about 1-2.5 meters, and the size is not limited, generally it depends on the terrain. A 0.5-meter-wide, 0.2-meter-thick spawning platform was built around the pool walls using loose sandy soil with humus to facilitate the production of oysters. In the middle of the water, the platform is 10 cm above the water surface and remains moist. Sometimes the water level in the pond is not easy to control precisely. Therefore, establishing a fixed spawning platform in the pond will inevitably lead to the death of the eggs caused by water inundation. In order to overcome the influence of these unfavorable factors, we use the principle of rising water and build a floating spawning in the pool. Platforms, the construction of spawning platforms can be bundled together as a carrier by using the timber removed from the old houses, abandoned shelves, etc., according to local conditions, and 10 cm of loose sand can be laid on top. This method can not consider the water ups and downs, the loose sand will always maintain an almost constant humidity, can provide a good spawning site for the otter, egg hatching rate is quite high. Ponds are divided into earthen ponds and cement ponds. The former needs to be made of bricks or stones to make it sturdy, durable, and free of loopholes; the latter should be covered with 20 cm of mud at the bottom of the pond. No matter what kind of pool, drain holes should be set around the pool so that it can be drained easily in heavy rain, so as to prevent the water from flowing through the pool wall and causing the water to escape. Each drain hole should be equipped with a filter to prevent the leeches from fleeing. Requires fertile water, in order to make the water snails, leeches, and a variety of water surface of the fast-growing and development of algae and microorganisms. For this reason, after the construction of the lagoon, a layer of chicken or pig manure should be sprinkled on the bottom. It is advisable to apply 0.2 manure per 100 m 2 of water and cover it with 20 cm of soil. In addition to specialized culture ponds, existing fish ponds, lotus ponds, and abandoned gutters, pool sugars, etc. can also be used. No matter what kind of aquaculture pond, it must be disinfected before seeding. Since blisters are not suitable for alkaline soil or water quality, they cannot be disinfected with quicklime, bleaching powder, etc., but the disinfection effect with ordinary vinegar is very good, and the appropriate ratio is every cubic meter. Rice water 10 grams vinegar. Note: The soil and water quality in the pool must be weakly acidic. The PH value is 5.5-7. If the PH value is greater than 7, it must be improved. Otherwise it will result in production loss or even failure. The drainage outlet must be set around the pool to prevent the rising of the water level in the rainy pond. The spawning platform leads to the death of chaos; the suction of the blisters on the smoother plane is stronger, so its escape prevention wall must be rough; the artificial breeding blisters should pay attention to adjust the water quality, especially when the density is large, the water must be changed timely. , maintain a certain amount of oxygen. 2. Selection of seed pods and preparation prior to release: Wide-body cash pods or fast-food leeches are preferred for artificial breeding. Due to its high medicinal composition, the variety is characterized by large size, rapid reproduction, rapid growth, easy feeding, strong disease resistance, and high yield. Body slightly spun cone. Flat and more fatty. The body length is 8-18 cm, and the back is usually dark green. There are six lines of black and light yellow stripes and one of them is thicker. The front of the pattern is light in color, and the sides of the body are a light-colored longitudinal band. Each side of the body has a thick and distinct yellow-brown and dark brown vertical pattern on both sides. In order to stockpile, the leeches must be physically strong, non-disabled, non-polluting, and lively. When they are touched by hand, they are quickly reduced to a mass of 10 grams or more. Before disinfestation, seedlings should be disinfected, a large plastic basin should be taken, and a certain amount of 0.01% potassium permanganate solution should be placed in pots. The used blisters should be placed in pots for 10 minutes in order to be disinfected and then put into preparation. Just keep the pool. 3. Stocking densities: 500-1000 pieces of water per 100 square meters for the breeding of water bream, and 10,000 for raising young cubs; 40 kilos of pods per mu for fish and leeches mixed. 4. Management of otter: Pre-spawning management: Prior to spawning, otter has a large amount of food. To make spawning more eggs, each oviparous hatches more pups and needs to supply enough feed, in addition to supply. More species of river otters and snails should be top-dressed in the water to promote the growth of plankton and aquatic grasses in the water in order to provide enough diversified feed to the otters and surplus feed for future larvae. Spawning period management: During the spawning season, leeches often climb out of the water at night and drill into the imaginary soil of a spawning platform specially designed for it to spawn. They should try their best to keep their environment quiet, so as not to disturb the otter's fleas. Causes empty space. During incubation, avoid walking around the platform to avoid stepping on the eggs. At the same time pay attention to maintaining the water level. If the water level is too low, the soil on the spawning platform will be too dry, causing the eggs to dry up and die. If the water level is too high, the spawning platform will be flooded and the eggs will die of hypoxia. Management of young cubs: hatching cubs can be fed after 3 days. During this time, the young quail's food is mainly the blood and sap of river otters, snails, and plankton in the water. Due to a large amount of naive hatching, the food in the water The consumption is very fast. In order to grow more plankton in the water, it is necessary to continuously apply fertilizer to the water. The method of top dressing is to put the sun dried chicken manure and cattle and sheep manure into the prepared woven bag and sink into the bottom of the water. As the larvae grow up, they can swallow the entire body of the river otters and snails. The food of the otters: In the case of artificial rearing, the main foods are the river otters, snails, and plankton in the water. Food Match Supplement: Feeding amount depends on the number of breeding species, and 250 grams of live snails and river clams are placed per square meter of water so that it can grow and feed. In addition, otters are not strict with water quality, but due to the high density of artificial breeding, it is best to keep the water fresh, and the water temperature should be kept between 15-30°C. The feeding was stopped below 10°C, and growth was affected above 30°C. During July-August, the water temperature is high and care should be taken to change the water properly.

Section 4 Notes for Aquaculture 1. Observe the activity of the otters. If the otters are found clustered in the lower part of the side wall of the pool and swim along the side walls to the middle and upper layers, they rarely swim out of the water. This is the signal of the lack of oxygen in the water. , should immediately increase oxygen or change the water; 2, observe whether the amount of plankton in the water is drastically reduced, to determine whether to fertilize the water, and more to stock aquatic plants. Water hyacinths and duckweeds should be the mainstays, because the otters are afraid of direct sunlight. They are both the feed for snails and light shading for otters. Otters can also lay eggs on them. 3. The leeches shall not be put into the pond directly after the introduction, because the leeches themselves will produce a layer of mucous membrane as a protective layer during transportation. A cool, damp place should be chosen around the pond. Put the leeches there and make them natural. Climb into the pond to reduce death. 4. The harvest period is generally in October. The leeches will be separated by large, medium, and small. The large ones should be filtered out and put back into the pool to be kept as a kind of leeches. The small ones should be kept in another pool for continued breeding. Two years raise more than 15g salvage and sell, medium should be processed into dried goods immediately after the sale. 5, early spring and late autumn management: at room temperature leeches are generally in late April to early October activities, feeding, growth, other time Are in hibernation. In early spring and late fall season, the qualified farms can use plastic film to cover the culture ponds and use sunlight to increase the water temperature, thereby prolonging the growth time of leeches for 3 months and increasing production by more than 40%. 25 kg of river otters and snails can be placed on the surface of each acre of water in the water tanks mixed with fish. No feeding is required when 2000 ploughs are placed. The natural reproduction of river otters and snails as well as various plankton in ponds can satisfy leeches. Normal consumption. Section 5 Several points of the artificial breeding leeches 1. The location of the site is selected from the south to the north and sheltered from the sunny place. It is required that drainage and irrigation are convenient and the sunlight is sufficient. The pond is 3 meters wide and 1-1.2 meters deep. The length can be determined according to the size of the site. The bottom of the tank is grouted with cement. The principle of watertightness is the principle. The tank is set diagonally and drained. The bottom of the tank must be high in the north and low in the south to facilitate irrigation and drainage. Around the pond, loose sandy soil rich in humus is used to facilitate spawning. In the middle of the pond, a platform 0.2 meters above the water surface was built, kept moist, and some stones and twigs were placed at the bottom of the pond to inhabit it. 2. Water quality The density of artificially-breeded otters is relatively large. In the feeding process, it is necessary to constantly change the water and prevent the pollution of fertilizers and pesticides. In particular, in the high-temperature season of July-August, we must ensure that the water inlets and outlets are unimpeded, the water quality is fresh and there must be A certain amount of dissolved oxygen. 3. The selection of seed pods requires individual hypertrophy, with more than 12 grams per article. It requires good activity, smooth surface, bright colors and no scars. The stocking density is 20-25 kg per mu (2000-2500 articles). ). 4. Hatching otters usually spawn above 11°C and hatch their cubs on 16-25 days. Keep quiet near the pond during the spawning period so as not to disturb the spawning otter and cause empty eggs. During the incubation period, avoid walking on the platform so as not to step on the eggs. The hatched pups can self-feed the blood of river clams and snails after 3 days. Therefore, sufficient feed should be released. Usually, 20 kg of snails and river clams are put into every thousand blisters, and blood clots of livestock are fed once a week. It is free to eat. However, care must be taken to clean up any residue of blood and other food at any time to keep the water clean. 5. Under natural conditions in winter, when the temperature is lower than 10°C, feeding will stop, and it will enter the mud and winter. Artificial breeding can cover straw and other objects around the pond to keep warm and help the otters to naturally overwinter. It is also possible to concentrate the breeding leeches in the plastic film sheds for wintering, feed them once a half months, and when the temperature rises slightly, they can spawn and spawn. 6, natural enemies and disease prevention The main natural enemies of mink are voles, frogs, weasel, snakes, etc., can use micro-grid prevention and control tools and traps. Under normal circumstances, Minamata has a strong vitality and basically no disease, as long as the water source is not contaminated by chemical fertilizers, pesticides and salt alkaline solution, and the inlet and outlet are kept open. The food is fresh, and the feed residues are promptly removed. Regular water changes can keep the blisters well. On the contrary, skin diseases and intestinal diseases may occur. Section 6 The Best Introduction Time of Broad-body Gold Lines The wide-area gold line is a lake area that widely lives in China's Hubei, Shandong, Jiangsu, Zhejiang, and Anhui provinces, and the river banks and various types of freshwater in the provinces north of the Yangtze River Basin. In the waters, the folks are commonly known as grasshoppers. In recent years, artificial breeding of leeches came into being. Many farmers suffer from unnecessary losses because they lack the necessary knowledge and experience in breeding and are introduced at will. In general terms, it is always recommended that it be introduced in the early spring. What is more, it is declared that it can be introduced at any time of the year and mislead many mink farmers. According to the research practice of the author, it is shown that autumn is the best time for introduction. There are three reasons: First, we all know that the mink must be dormant. This is an objective law, and the time for the mink to be unearthed in the early spring is not exact. Every spring, the temperature is unpredictable because it is unknown whether the mink has been mated or not. Produced too. This makes the introducer at a loss and uneasy. Second, leeches that have just emerged in the early spring have strong stress responses, poor physique, and weak resistance. After entering the new environment for the first time, water and soil discomfort often occur, affecting the survival rate and calving volume to varying degrees. . Third, the introduction time of the autumn season can be flexibly controlled. The choice of rainy days or temperatures around 25°C is better, and the survival rate after the seedlings can reach 98% or more. It is more practical for the breeder to introduce the species. After fully adapting to the new environment and successfully maintaining the wintering season, each can be mated in the spring of the second year to ensure that the cultured golden wire has a good start. Phone: 400-811-6650 to 423054 Mobile: 400-811-6650 to 423054

Containerized Oxygen Generator

Containerized Oxygen Generator

ETR can combine all parts of the oxygen generation system into a customized container, including air compressor, refrigerate air dryer, filters, buffer tanks and oxygen generator. Even the optional oxygen booster and cylinder filling station.

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