1, pond construction
The pond around loach culture needs to be 40cm above the water surface, with a bank slope of 60℃ ~ 70℃, a pond depth of 80cm ~ 100cm and a water depth of 30cm ~ 50cm. Fences should be made of nets, plastic plates or porcelain plates around the pond to prevent snakes, rats and other enemies from entering the culture area. In addition, the import and export 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. After the water depth is 10 cm, it is necessary to mix it with quicklime and spread it in the whole pond for disinfection. Apply base fertilizer three days before stocking.
Step 3: sow seeds
The time of coming to the pond in loach seedlings is May every year, and the planting density is 1500/m2 ~ 2000/m2. In the process of seeding, we should pay attention to the water test before stocking and check whether the toxicity of water body is eliminated.
4. Feeding management
When the body length of loach seedlings is less than 2 cm, topdressing can be appropriate according to the water conditions. Top dressing can use fermented farm manure such as pig, cow, chicken and human excrement, and sprinkle it once in the morning and evening. When the loach grows to 2 cm, deepen the water level to 50 cm to improve the water quality, and feed it 1 time every morning and evening. The water quality of loach culture is very important. In addition to changing the water once or twice a week, it is necessary to apply fertilizer frequently to keep the water yellow-green.