1, select seedlings

In the industrialized breeding of loach, we should choose the fry with strong disease resistance and excellent quality, and the fry should have the advantages of strong physique, uniform size and consistent specifications. Then, the loach seedlings should be soaked in diluted potassium permanganate for a period of time to disinfect them, so as to reduce the chance of the loach getting sick.

2. Breeding grounds

When cultivating loach, it is necessary to build a culture pond in the soil with moderate humus content. The upper end of the culture pond is square and the lower end is the bottom of the pot, and the maximum water depth can reach 2.8 cm. In addition, a water treatment system should be installed in the aquaculture pond to facilitate the rapid change of water quality, and then loach seedlings can be put into the pond.

3. Circulation system

When loach is cultured in factory, the water treatment system can be used to remove harmful substances such as large particles of dirt, residual suspended solids of fish manure, carbon dioxide and heavy metal ions. Discharge from sewage, thus increasing the dissolved oxygen content in water, achieving the purpose of recycling water, and helping to improve the survival rate of loach.

4. Daily management

When breeding loach, it is necessary to regularly check the breeding pond, observe the changes of water flow at the inlet and outlet, replenish water and drain water in time to ensure the normal operation of the water treatment system, and feed the loach with special feed according to the changes of water temperature to speed up its growth, and disinfect the breeding pond regularly to avoid the loach from being infected with diseases.