1, pond construction
The pond around which loach is cultured needs to be 40cm higher than the water surface, with the bank slope of 60℃-70℃, the pond depth of 80cm-100cm and the water depth of 30cm-50cm. Net, plastic board or porcelain board should be used as a fence around the pond to prevent snakes, rats and other enemies from entering the culture area. In addition, the inlet and outlet are wrapped with 120 mesh net cloth to prevent loach from escaping and harmful organisms and wild fish eggs and fry from entering the pond.
2, preparation before stocking
Before stocking loach, it is necessary to clean the pond, and after the water depth reaches 10 cm, it is necessary to use quicklime to make slurry, then sprinkle it all over the pond and disinfect it. Apply base fertilizer three days before stocking.
3, seeding
The time to go to the pond in loach seedlings is May every year, and the planting density is 1500-2,000/m2. In the process of seed investment, we should pay attention to testing water before stocking to check whether the toxicity of water body is eliminated.
4. Feeding method
Artificial breeding of loach should also be fed with certain commercial feed, such as bean dregs, bean cakes, wheat bran, rice bran, wine tanks and so on. The feeding amount is generally 4%-5% of the loach's weight. When the temperature is 25-28℃, the loach eats the most, so the feeding amount can be appropriately increased to promote its growth.
5. Feeding management
When loach seedlings's body length is less than 2 cm, appropriate topdressing can be applied. Topdressing can be applied with farmyard manure such as fermented pig, cow, chicken and human excrement, and spilled once every morning and evening. When the loach reaches 2 cm, deepen the water level to 50 cm, improve the water quality, and feed it 1 time every morning and afternoon.
6. Daily management
Farmers need to pay attention to patrol the pond twice a day and often check the escape prevention facilities to prevent loach from fleeing. At the same time, pay attention to the water level, water quality and the growth of loach, and deal with problems in time when found. In the feeding process of loach, some organic fertilizer can be properly supplemented, but when applying fertilizer, it must not be too frequent, and the pool water should be changed frequently, usually once every10-15 days. It is necessary to take early measures to prevent and control loach diseases in the middle and late stage of culture.
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