The main points of black fish culture

Black fish seriously refers to snakehead, which is also called black mullet. It is a kind of ferocious fish with strong reproductive ability, but it is a very common edible fish in our country. It has few fish bones and bones, fresh and tender meat and high nutritional value. Eating black fish is not only conducive to wound healing, but also has the effect of nourishing and nourishing. There are also many large-scale black fish farms in China, but how to raise black fish? Today, the editor is going to talk to you about the main points of blackfish culture. Friends in need can take a closer look.

1. Fish pond management

Black fish farming ponds should choose the sunny place, and the water level in the fish ponds is generally 1 meter to 1.5 meters deep. Some aquatic plants should be planted properly around the fish pond, and in the lower position of the fish pond, it needs to be surrounded by a net. Before stocking, we should thoroughly disinfect the fish ponds, and then sprinkle some base fertilizer into the culture water body. In the later stage, we should clear the pond from time to time to ensure the environment of culture.

2. Fish fry restocking

We usually purchase black fish fry from regular, disease-free areas. The seedlings purchased need to be disinfected with salt water first, usually about five minutes. The density management during stocking is also very important. The density of fish fry is mainly related to the specifications of fish fry. Generally speaking, fish fry is about 3 to 5 centimeters, then 8,000 to 9,000 fry can be released per mu, while the specification is about 10 to 15 centimeters. Only about 5,000 fry can be stocked per mu. Finally, there are fish fry of about 20 centimeters, and a maximum of 2,000 fry can be stocked per mu. In addition, in the later stage of breeding, it is necessary to keep raising in groups, so as to ensure the output and quality of black fish.

3. Feed feeding

Feed should be produced by regular units with good quality and low price, and should not be cheap and inferior products should be selected. The main feeds are crude protein, crude fiber, fish meal, bone meal, soybeans, flour and other nutrients. While feeding with feed, we also need to feed some bait such as mussel meat, small fish and so on, so as to ensure the nutritional balance of black fish. At the same time, the feeding of bait should be timed, located, qualitatively and quantitatively. Generally speaking, the best feeding time is from 8: 00 to 9: 00, and from 4: 00 to 5: 00 in the afternoon. Under normal circumstances, it is fed twice a day, and if the weather is bad, you only need to feed it once a day.

4. Daily management

Day-to-day management is also a key point in black fish culture technology. After feeding, we should salvage the remaining food residue in time, and disinfect the pond irregularly, usually once every half a month or so. At the same time, we should check the water quality in the fish ponds, change the water irregularly, always pay attention to the changes in the weather, and observe the daily exercise and food intake of black fish to prevent diseases in time. Finally, it is necessary to do a good job of escape prevention in order to avoid losses.

The above are the technical points of black fish culture, basically master these key points, then there is no big problem with black fish culture. If you have anything else you want to know, you can follow us or contact the editor directly.