1. In order to cultivate grass carp, it is necessary to start throwing fry in a spring. Before releasing the fry, we should sprinkle the pool water with quicklime or bleaching powder at one time, which can kill bacterial spores and viruses and reduce the risk of sick people. How to choose strong, fat, mucus-covered and slightly golden fry and disinfect them with potassium permanganate standard solution. When throwing fry, try to work in sunny morning. In order to grow fry in grass, ryegrass needs to be cut into pieces of 0.5 cm, which will help fish eat.

2. Grass carp is easy to cause some bacterial infections and various diseases in the growth process, so relevant prevention and control measures need to be taken. If the green feed is mixed with bacteria, slight enteritis will begin to appear after being absorbed by the intestinal digestive system, and various bacterial infections in the water, such as Chinese fleas, fish lice, water mold spores, bacterial hemorrhagic diseases, etc. Therefore, all water should be sprinkled every summer to treat enteritis and sterilize.

3. In the process of cultivating grass carp, we should observe the water quality regularly. By observing the floating grass carp feces, it can be found that the floating grass carp feces are all over the pond, indicating that the grass carp eats normally. Grass carp will eat less if they have diseases, so it is necessary to find out the reasons in time and prevent them. Generally, it is necessary to prepare drugs to treat enteritis and rainy season, and sprinkle water on the whole pond to control the disease and reduce the growth and development of grass carp.

4. After all the green feed is fed, grass carp needs to save all the leftovers. Don't let it sink to the bottom, otherwise it will rot and breed bacteria and viruses, thus ensuring the cleanliness of the water. It is also necessary to spray bleaching powder regularly until an autumn, and then analyze the second bleaching powder spraying to ensure the clean growth and development environment of grass carp.