Loach has a wide distribution, strong resistance, easy to breed, and has a high medicinal value, known as the "water ginseng" reputation, now the rapid cultivation techniques of loach seed are described below. Farming sites should have sufficient water sources, convenient drainage, self-drainage, fresh water, no pollution, neutral or slightly acidic soil, adequate sunlight, quiet environment, convenient transportation, and normal power supply. Second, pond construction 1. Pond specifications The area is 50 square meters to 100 square meters. The pond is 40 centimeters above the surface of the water, the pond slope is 60 degrees Celsius to 70 degrees centigrade, and the pool depth is 80 centimeters to 100 centimeters. After the pond is dug, the pond wall should be compacted, and 50 centimeters and 50 centimeters of cement should be used. The board is used for slope protection. The bottom of the tank is laid with humus about 20 centimeters, and the depth of water is maintained at 30 centimeters to 50 centimeters. 2. Anti-escape facilities Surrounding aquaculture ponds use mesh, plastic panels or porcelain plates as enclosures to prevent snakes, rats and other predators from entering the culture area. The inlet and outlet ports are wrapped with 120 mesh mesh to prevent muddy escaping and the entry of predators and wild fish eggs and seeds into the pond. 3. Intake and drainage facilities The inlet and outlet are diagonally arranged. The inlet is 20 cm above the water surface. The outlet is located at the bottom of the fish slip. It is connected with a PVC pipe to a height of 30 cm above the water surface. When draining, the water level can be adjusted by adjusting the height of the PVC pipe. 4. Fish slip (set mud pit) In order to facilitate fishing, the pool should be provided with fish slips connected to the bottom of the drainage area, which is about 5% of the area at the bottom of the pool, 30 cm to 50 cm deeper than the bottom of the pool, and the fish slipped around the wall or used cement masonry. Thorough. Prepare for stocking Pond clearing 10 days before the muddy stocking, clear the pond, check the plugging of the hole, dredge into the drainage pipe, and plow the bottom mud. After the water reaches a depth of 10 cm, it is splashed and disinfected with 1 kg of calcined pulp per 10 square meters. 2. Water storage and fertilization After 3 days in the clear pond, add water to a depth of 30 cm, apply basic fertilizer, apply 3 kg of fermented chicken manure or 5 kg of pigs, cattle, and manure per 10 m3 of water. Apply 7 g of nitrogen fertilizer per cubic meter of water. Phosphate Fertilizer 1 Grams. Four, seed casting Loach seedlings have a time of 5 months per year, with a seedling density of 1500/m2 to 2000/m2. When the loach grows to a body length of 3 cm, the ponds should be screened and the density of the loach seedlings should be 60/m2 to 80/m2. In the process of seed input, care should be taken to test the water before stocking to check whether the toxicity of water is eliminated. The gap between the temperature of the water in the seedling container and the temperature of the pool water cannot exceed 2°C when the seedlings are released. If the muddy seedlings are transported with oxygen in a nylon bag, the seedlings should be treated as “slow seedlings†before placing the seedlings under the pond, and the oxygenated nylon bags should be placed. In the tank for 20 minutes, when the oxygen temperature inside and outside the oxygen-filled nylon bag is the same, the seed is slowly released. V. Feeding management 1. Pre-cultivation stage (less than 2 cm in length of muddy seedlings) According to the situation of water color, top dressing is appropriate. Fertilizers can be used to fertilize farmyard manures such as pigs, cattle, chickens, and human feces. Superphosphate, urea, and ammonium bicarbonate fertilizers can also be used. Small amounts of water can be used. The water color is yellow-green, and the water depth is controlled within 30 cm. The transparency is controlled at about 20 cm. At the same time, every 200,000 loach species are ground into 15 kg of soya milk with 1 kg of soybeans, and they are sprinkled once a day in the morning and evening. 2. Post-cultivation stage After the muddy seed size reaches 2 cm, gradually deepen the water level to 50 cm. In addition to continuing to fertilize the water quality, it should also be fed with compound feed. It should be fed once a day in the afternoon and afternoon, and the daily feeding amount should be 4% to 10% of the loach body weight. Feeding amount should be considered as water quality, weather, and feeding conditions. When the water temperature is above 15°C, the loach's appetite increases with increasing water temperature; at 25°C～27°C, appetite is particularly strong; at 28°C, appetite gradually decreases. If the temperature exceeds 30°C or less than 12°C, feed or feed should be stopped. Sixth, daily management 1. Adjust the water quality and add new water. Change the water once or twice a week. Diligently apply fertilizer to keep the pond water color “fat, live, tender, and coolâ€. The water color is preferably yellow-green. 2. The patrol ponds were observed once in the morning, in the middle and evening, and the muddy and muddy activities and water color changes were observed. Problems were found in time. 3. Regularly prevent diseases, clean up and clean bait stations, do a good job of disinfecting feedstuffs, tools, etc., and regularly feed drugs that prevent fish diseases. 4. Prevent damage from escape Avoid paying attention to prevent enemy invasion and muddy escaping. Always check the water inlet and outlet. VII. Disease Prevention Bubble disease Due to lack of dissolved oxygen in water, excessive oxygen in dissolved oxygen, or excessive gas content. Symptoms muddy floating on the water, belly bulging like bubbles. Prevention methods Strengthen daily management to prevent water quality from deteriorating. In case of onset of disease, fresh water should be added immediately, and 4 kg to 6 kg of water per acre should be used to splash the whole pool. 2. Trichoderma disease Symptoms Diseases Mud body is thin, often floating on the surface of the water, irritated, or spinning on the surface of the water, increased mucus on the body surface, microscopic examination of trichomonas. Control method 0.710-6 Solution concentration of copper sulfate and ferrous sulfate (5:2) mixture Quanchiposa. 3. Red fin disease Caused by Brevibacterium infection. Diseased, muddy fins, abdomen, skin, and anus around congestion, ulceration, caudal fins, pectoral fins red, rot. Prevention and control method with a concentration of 110-6 bleach Quanchiposa. When the loach grows to a body length of 5 cm, the breeding stage of the loach seedlings is completed, and the breeding stage is entered.
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