The daily management of pond is very important for the culture technology and density of carp.

Site selection: it should be built in areas without pollution, sufficient water sources and far away from cities and towns. Pond: apply appropriate amount of fertilizer after disinfection and install a filter at the outlet to prevent escape. Select seedlings: select fish fry with uniform size, disease-free and strong swimming ability. Density: mainly based on regional climate, environment and water quality. Feeding: domesticate carp for fixed-point feeding. Management: observe the growth status of carp, reasonably adjust the feed formula, actively prevent diseases, hypoxia and timely supplement of oxygen. Overwintering: an ice eye that requires open oxygen to freeze.

1. Build a pond

Ponds for raising carp should first be built in pollution-free, adequate water sources and far from urban areas, or abandoned ponds can be rebuilt. For example, the pond left behind by breeding crabs, freshwater shrimp and turtles can be rebuilt, and the area of the pond is about 1.5 mu. If the area of the abandoned pond is small, it can be expanded appropriately, and the depth of the pond is about 2.5m. The water in the pond is discharged clean and dried for about a week, and then sprinkled with lime water for comprehensive disinfection.

2. Culture conditions

Fertilize after sterilization, apply about 600 jin of farm manure, then wrap the import and export filter to prevent sundries from entering the pond, and the front of the gate of the drain should also be wrapped with a filter to prevent carp from escaping. After cleaning up the sundries in the pond, irrigate the water, choose the precipitation after about 10 days, and then isolate the edge of the pond with a fishing net to prevent poultry from entering the pond and preparing to release fish fry.

3. Select seedlings

In order to order fish fry in large farms, fish fry with uniform size, disease-free and strong swimming ability should be purchased. After the purchase of fish fry should be packed into cages for transportation, and oxygen should be replenished in time during transportation, which is helpful to reduce fish fry damage. Fish fry should be temporarily reared properly after being transported to the farm, and about 10 fry should be taken out for trial culture to observe the situation of fry in the water. If there is no abnormality within 24 hours, all fry can be put into the farm.

4. Culture density

In general, it is best to culture carp about 3000 jin per mu of pond, which can be matched with other species of fish. if the number of culture is too much, it is easy to cause diseases, resulting in higher culture costs. Grass silver carp and bighead carp are generally used for mixed culture, and the specific culture density can be adjusted according to region, environment, climate, water quality, culture technology and investment.

5. Fixed point feeding

There is no need to feed the fish fry in the pond for about 10 days. The plankton in the pond can ensure food supply for a period of time. During this period, feed should be prepared first, and then domestication can be carried out. In the initial stage of domestication, feed is put in every corner of the pond. When the fry adapt to the feed, the feeding range will be slowly reduced and domestication will be intensified. After complete domestication, the fry can be fed at a fixed point. Domestication and breeding is beneficial to the management in the later stage.

6. Post-management

The later management is mainly to observe the growth of carp through feeding. If carp have a poor appetite, as long as a small number of fish come to eat each time, it is necessary to properly adjust the feed formula. If the effect is not good, carp may have diseases. Drug treatment should be carried out in time. If it is found that the carp stagnates for a long time or floats to the surface of the pond to breathe with its mouth, it is the carp that is lack of oxygen and should be given oxygen in time. Inspect the isolation network every day to see if there is anything abnormal, and repair it in time if it is damaged.

7. Overwintering treatment

It is very troublesome for carp to spend the winter. If the pond freezes, it is necessary to use tools to open oxygen-releasing ice holes in time. If it rains, clean the center of the pond and sweep the empty space with a width of about 6m and a length of about 10m. It is helpful to improve the transparency of the bottom of the pond, so that the carp can spend the winter normally.