Artificial culture methods of tuna

Tuna is a kind of precious marine fish with excellent taste and rich nutrition, especially in Japan, the United States, the United Kingdom and other countries. The source of tuna in the market is still wild. Because of its magnificent economic value, many people have been constantly exploring the technology of tuna culture, but there is still no great breakthrough at present. Well, today we are mainly here to learn about the simple method of tuna culture. I hope you can like it.

1. Culture preparation

Tuna culture is relatively complex, and the current artificial culture technology is not perfect, so before breeding must be fully prepared, otherwise it is difficult to feed. Tuna are cultured mainly through cages. First of all, we have to choose cages with better texture, then choose suitable waters, then disinfect the cages and put them in, or set up a red tide warning in the selected waters. Finally, you can choose the fry.

2. Fish species selection

The species of tuna are more precious, and at the same time, because of the problem of culture technology, we should be more careful. When choosing fish species, we should carefully observe whether the tuna's body, scales, Gill, fin, eyes, tail, belly and other places meet the standards (specific standards can be consulted). The second is to put food to see how they eat, choose strong, disease-free fry for breeding.

3. Fish fry restocking

We need to disinfect and sterilize the tuna before stocking, because the purchased fish fry always carry more or less bacteria anyway, and if they are released directly, they will pollute the water quality and cause damage to all the fry. So at the beginning, you can soak the tuna in a special tuna disinfectant for an hour or so, and after the bacteria are cleaned, you can put it into a cage for breeding.

4. Feeding and management

Tuna is a kind of delicate fish, although it tastes great, it is not easy to feed, so feeding and management is also very important. we need to understand the living habits of tuna and choose bait reasonably according to tuna's love of food. the second is to put the feed in a fixed place and irregularly every day, usually about three times a day, if the feed is reasonable. The way of farming is scientific, so the growth rate of farmed tuna is at least twice as fast as that of wild tuna, so it greatly shortens its growth cycle, which is also an advantage of tuna culture.

5. Daily management

The daily management of tuna mainly includes water quality management in culture area, sanitary management of cages, management of diseases and insect pests and prevention of natural disasters. Tuna has high requirements for water quality, so we enter the market to check the water quality around the culture area and find the pollution source to purify the water quality in time. At the same time, tuna also has high requirements for the living environment, we need to irregularly clean and disinfect the cage, the second is to fish out the food residue in the water in time so as not to pollute the water. For tuna, the prevention and control of diseases and insect pests is mainly based on prevention, and an appropriate amount of antibiotics can be added to the feed. The prevention and control of natural disasters requires us to often pay attention to meteorological changes and adjust the cage in time.