Soilless culture mud loach technical points in cement pool

I. The use of old cement ponds should first be sterilized. After the new cement pool is built, the alkali must be removed. The cement pool is filled with water and soaked for 10 days. The water is changed every two days, or the alkalinity treatment is performed with drugs.
Second, transplanting aquatic plants is the key to aquaculture. Aquatic plants use water hyacinth or water peanuts. The area accounts for two-thirds of the cement pool. Disinfect it with a 20 ppm potassium permanganate solution.
Third, the use of organic fertilizer to cultivate water quality, for the loach to provide natural food, the amount of 1000 pounds per acre, with snakeskin bags installed in the distribution pool.
4. Before soaking the seedlings in the pond, soak them in 3-4% salt water for 4 to 5 minutes to kill germs and parasites. Seedlings stocking density of 80 to 100 per square meter, stocking specifications of 5 ~ 8 per tail. The temperature difference of water entering the pool does not exceed 3°C~5°C.
5. After the loach seedling enters the pond, it controls the food for 2-3 days and gives it an adaptation process. The feeding amount varies from 5% to 8% of the stocking loach's body weight, from small to large, and gradually increases. Feeding should be conducted regularly, fixed-point, and quantitatively. . Feed it once a day in the morning, in the middle, and in the evening. It is advisable to eat the feed within 2 hours after feeding.
Six, timely change of water, regular disinfection. When the transparency of the water body drops to more than 20 cm, it should be drained and watered in time. Disinfect regularly with bleach, etc. Each month, use EM bacteria sprinkling once to regulate water quality.
Seventh, disease prevention and control. In the process of aquaculture, attention should be paid to disease prevention and control. Common diseases include red fin disease, water mold disease, bubble disease, bone disease, trichoderma disease, tongue cup disease, pesticide poisoning and other biological predators.
VIII. Appropriate time for catching up on the market, catching up to stay small. Generally after the National Day, it can be captured. At this time, the muddy individuals are 5-7 times longer than the seedlings. The feed-to-meat ratio is most suitable, and it can also be determined according to the local market conditions. At the time of arrest, the smaller mud of the individual was left for sale in the coming year.
Nine, do the winter insulation work. Keep a certain level of water in the cement pond in winter. Every day when ice is frozen, it is necessary to break the ice surface to keep the dissolved oxygen in the water body. It is also possible to engage in plastic greenhouses to ensure the safe wintering of seedlings and pods.

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