How to breed black fish

Black fish is a common name of snakehead, which is also known as mullet, raw fish and so on. Black fish is a kind of ferocious carnivorous fish, which is very common in our country. Its individual is relatively large, growing faster, has higher economic interests, less bone spurs, high meat content, and is very rich in nutrients. Its protein content is higher than other meat and can be used to heal wounds. It is listed as the top grade of insect and fish. Therefore, today, the editor has brought you the method of black fish culture.

1. Pond selection

Black fish culture should first determine the pond culture area, black fish culture should not be too much, but can be divided into several ponds to raise separately, a pond in 2-5 mu or so. The water depth is about 2 meters, and the silt at the bottom of the pond should not be too much. An anti-escape net must be set up at the inlet and outlet of the pond to prevent black fish from escaping during the breeding process. Quicklime needs to be sprinkled to disinfect the fish pond before stocking, and water lotus about one meter wide can also be planted in the pond, which can not only prevent black fish from jumping out of the pond, but also effectively shade the pond. Ponds should choose to be far away from noisy places, with adequate clean and hygienic water sources and a good drainage and water exchange system.

2. Release of fish species

When choosing fish species, they are generally bought on the market, although the prices on the market are relatively low, but their specifications are not the same, and often cause mechanical damage to the fish. Therefore, before releasing fish fry, the pond must be disinfected with quicklime, or the fry must be soaked in salt water and bleach for about 20 minutes to disinfect the fry. The stocking density of black fish should be determined according to various factors such as culture area, feeding technology, feed and so on. Generally speaking, a maximum of 2500 blackfish can be raised per mu.

3. Feed feeding

As long as those who have experienced in blackfish farming know that blackfish is a very ferocious carnivorous fish, whether it is live or dead meat, it mainly feeds on all kinds of fish and shrimp in the pond. When feeding blackfish manually, you must feed them at a fixed time every day, at least twice at 10:00 and 3pm every day. Generally speaking, after a week of stocking, the fish species will begin to rush to the surface of the water and carefully observe the eating situation of the black fish when the black fish are feeding. If there are fewer black fish near the food or when the feeding between the black fish is not intense, it means that most of the black fish are full and can stop feeding.

4. Feeding and management

Black fish eat a lot of food, so it also has a lot of feces, so it will soon make the water in the pond become fatter and fatter, causing a large number of zooplankton to breed. Cause hypoxia in the pond, so we should pay attention to observe the change of dissolved oxygen in the water when breeding. If there is a phenomenon of hypoxia, we must increase the oxygen in time. If the situation is more serious, we should adopt the method of surface sterilization. Sprinkle trichlorfon about 3 meters on the edge of the pond. Although the ability of disease resistance and disease resistance of black fish is very strong, and the incidence rate in the process of culture is relatively low, in autumn, if it is not properly managed, it will still lead to the disease of black fish, so we must always pay attention to the growth of black fish at this time, find abnormal conditions, and take corresponding measures in time.

The above is a brief introduction to the methods of black fish culture. when you culture black fish, you can also raise some other fish in the pond. Because the black fish is very aggressive, it usually eats all the rest of the fish in the pond, so it can also add some natural food for the black fish. The water in the pond should be changed in time to prevent the pond from being too fertile and lead to lack of oxygen in the pond, affecting the normal growth of black fish.