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The correct method and detailed operational steps for pond clearing
Pond clearing methods for fish ponds
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Why is pond clearing and disinfection so crucial for aquaculture in winter and spring?
Why do ponds need disinfection? Aquaculture ponds are prone to sediment accumulation at the bottom due to feeding, fertilization, animal excretion and many other reasons. To ensure the safety and health of farmed animals...
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How do you clear a pond for aquaculture? A complete guide to pond clearing methods
I. Quicklime - 1 - Sources and main components of quicklime. Any natural rock with calcium carbonate as its main component, such as limestone, chalk, dolomitic limestone, etc...
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Pond Clearing and Medication Disinfection Methods for Aquaculture Ponds
After the dealkalization treatment of cement ponds, carry out pond clearing and disinfection promptly. Soak with quicklime at 100--150g/m³ or bleaching powder at 10g/m³ for one week, then drain the pond water and replace it with clean water. In routine management, every 10--15d, splash the entire pond with quicklime at 10g/m³, or bleaching powder at 1g/m³, or trichloroisocyanuric acid (strong chlorine essence) at 0.2-0.5g/m³, using the three in rotation. If the water is alkaline
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Methods and Technical Key Points for Clearing and Preparing Broodstock Rearing Ponds
1. Renovating the pond: Drain the pond water, remove excess silt, level the pond bottom, repair the pond bottom walls and the water inlet and outlet, and clear tall plants from the pond bottom and edges. After exposing the pond to sunlight for several days, fill it with fresh water. 2. Common pond-clearing methods include (1) Quicklime pond clearing. One method is dry quicklime pond clearing, that is, first drain the pond water, leaving only 6-10 cm of water on the pond bottom, dig several small pits around the pond bottom, place quicklime separately into the small pits, add water to dissolve it, and before it cools, splash it evenly over the pond. On the 2nd day, an iron
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Detailed Explanation of Common Pond-Clearing Drug Types and Their Methods of Use
Drug-based pond clearing is the use of drugs to kill pathogens, parasites, and various predatory fish, wild trash fish, and other harmful organisms in the pond that endanger fish, shrimp, and crab fry, thereby preventing disease from affecting the normal growth and development of the cultured species and improving aquaculture efficiency. At present, there are many varieties of pond-clearing drugs, but different varieties have different effects. Commonly used pond-clearing drugs include quicklime, bleaching powder, tea seed cake, ammonia water, croton, Tangkening, and others. 1. Quicklime pond clearing Quicklime is calcium oxide. Its pond-clearing effect is that after quicklime meets water, a chemical reaction occurs, producing calcium hydroxide,
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How to make heat-clearing fish fillet soup? A simple and tasty home-style recipe
Main ingredients: 4 liang (about 160 g) grass carp meat, 1 century egg, 1 tablespoon shredded pickled cucumber, 3 sprigs cilantro, 2 teaspoons each oil and light soy sauce, 2 slices ginger, a pinch of salt. Method: 1. Slice the grass carp meat, shred the ginger, cut the cilantro into sections, and cut the century egg into 6 pieces. 2. Mix the grass carp slices with oil, shredded ginger and light soy sauce. 3. Pour water into a pot and bring to a boil, add the pickled cucumber and century egg, cover, and boil over high heat for 2 minutes. 4. Add the fish slices and cilantro, cook over high heat for 2 minutes, add salt to taste and it is ready. Note: 1
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What are the pond-clearing methods? Remember these five before stocking fish fry
Before stocking fish fry, the aquaculture pond must be cleared to kill various predatory small wild trash fish, harmful aquatic animals and plants, parasite eggs, pathogenic bacteria, etc., creating a good environment for the growth of adult fish. The following five pond-clearing methods are introduced: 1. Clearing the pond with quicklime. When carrying out drainage pond clearing (that is, draining the pond water to a depth of 5-10 cm of remaining water before clearing), use 60-70 kg of quicklime per mu of pond; when clearing without draining, use 125-150 kg per mu of pond for every meter of water depth (200 ppm).
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Detailed Explanation of Common Pond-Clearing Drugs and Their Effects
Drug-based pond clearing is the use of drugs to kill various predatory fish, wild trash fish and other harmful organisms in the pond that endanger fish, shrimp and crab fry, creating a safe environmental condition for fry rearing. This is an important measure for improving the survival rate of fish, shrimp and crab fry. The commonly used pond-clearing drugs and their effects are introduced as follows: 1. Quicklime pond clearing and its effects: The action of quicklime in pond clearing is that after quicklime meets water, a chemical reaction occurs, producing calcium hydroxide and releasing a large amount of heat. Calcium hydroxide is a strong base, and its hydroxide ions can raise the pH value of the pond water to above 11 in a short time, thereby killing wild trash fish and other harmful organisms.
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A Complete Analysis of New Techniques for Clearing Ponds and Removing Wild Fish
Currently, the commonly used pond-clearing drugs in production include quicklime, tea seed cake, bleaching powder, bleaching essence, trichloroisocyanuric acid, etc. 1. Quicklime pond clearing. Quicklime (CaO) reacts with water to form strongly alkaline calcium hydroxide, causing the pond water pH (acidity and alkalinity) to rise sharply to 11-12, thereby killing wild miscellaneous fish, harmful organisms and various pathogens. 2. Tea seed cake pond clearing. Tea seed cake is a round cake pressed from the residue left after oil extraction from the seeds of the oil tea plant. Method of use: break the tea seed cake into small pieces, soak in
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