Key points of management of black fish culture

Black fish, also known as mullet, raw fish and so on, are widely farmed because of their rich nutritional value and high economic value. So, what are the management points of blackfish culture? Let's get to know it together.

1. Fish pond management

The fish ponds for black fish culture 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 properly planted around the fish ponds. In the lower position of the fish ponds, they need to be surrounded by nets. Before stocking, we should thoroughly disinfect the fish ponds, and then sprinkle them properly into some base fertilizer culture water bodies. In the later stage, we should clear the ponds irregularly to ensure the culture environment.

2. Fish fry restocking

We usually purchase black fish fry from regular, disease-free areas, and the purchased fry need to be disinfected with salt water first, usually about five minutes, and the density management during stocking is also very important. the density of fry is mainly related to the size of fry, generally fry is about 3 to 5 cm, then 8,000 to 9,000 fry can be released per mu, while the specification is about 10 to 15 cm. There are only about 5,000 fish fry per mu, and at last there are about 20 centimeters of fish fry, with a maximum of 2,000 fry per mu, and in the later stage of breeding, it is necessary to keep raising in groups, so as to ensure the yield and quality of black fish.

3. Feed feeding

Feed should be produced by regular units with good quality and low price, not cheap and inferior products, in which feed mainly includes crude protein, crude fiber, fish meal, bone meal, soybeans, flour and other nutrients, while feeding with feed, it is also necessary to feed some baits such as mussel meat and small fish, so as to ensure the nutritional balance of black fish. At the same time, we have to achieve timing, positioning, quality, and quantitative feeding. Generally speaking, the best feeding time is from 8: 00 to 9: 00 every day, and from 4: 00 to 5: 00 in the afternoon. Under normal circumstances, it is fed twice a day. If the weather is not good, then basically only once a day.

4. Daily management

Daily 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. at the same time, we should check the water quality in fish ponds, change water irregularly, always pay attention to weather changes, and observe the daily exercise and food intake of black fish, so as to prevent diseases in time. Finally, it is necessary to do a good job in escape prevention so as not to cause unnecessary losses.

The above are the key points of the management of black fish culture arranged by the editor of Tuliu.com for you. I hope I can help you!