Can you raise herring in the north? It can be raised, but the main production area is south of the Yangtze River

Herring can be raised in the north, and herring can survive in the range of 0.5-40 ℃ water temperature, and its disease is less, and the culture technology is easy to master. Herring is mainly cultured in the plain area south of the Yangtze River and less in the north of the Yangtze River.

Can herring be raised in the north?

Herring can be raised in the north, but because the culture cycle in the north is relatively short, the stocking specification and stocking density of herring are important factors that determine the survival rate of adult fish culture and reach the commercial specifications in that year, so in order to further improve the survival rate of culture, it is suggested that it is best to buy large-sized herring species for stocking. It is suggested that the important links such as seedling cultivation, feed feeding and disease control in the process of healthy herring culture must be strictly controlled in order to obtain better economic benefits. Herring can survive in the water temperature of 0.5-40 ℃, they have the advantage of less disease, and their culture techniques are easy to master, so they are suitable for culture in the north.

Select Pond

Herring is generally cultured in the pond, the pond should choose a place with sufficient water source and clear water quality without pollution, the pond area should be moderate and should not be too large, and the water depth should be kept at about 2.5 meters, there should be no potholes and less silt in the pond, which will not cause water leakage and seepage. The water in the pond should be discharged before the fry is released, and the excess silt and debris should be removed during the period, and then frozen and exposed for about 15 days. After adding 20-30cm water, sprinkle with lime powder for disinfection, filter and release water to about 1-1.5m after disinfection for 3 days. During this period, several bait machines and aerators can be prepared to prevent death caused by lack of oxygen of herring.

Seedling selection and stocking

Fish fry with vitality, disease-free, no damage and large food should be selected before stocking, and the size of the selected fry should be less than 3 cm as far as possible, so as not to cause the law of the jungle. The fry can be released after the toxicity of the disinfectant is dispersed, and the fry of other species should be released in January-February. The fry scale is relatively tight in spring when the water temperature is low, and it is not easy to cause physical damage. The mixed culture of bighead carp and silver carp can improve the water quality and promote the growth of herring.

Feed feeding

In order to promote the growth of herring, we can choose synthetic feed, which contains more than 30% crude protein. A feeding table can be set up during feeding, which can domesticate herring schools to surface and rush to feed. When feeding, we should ensure that herring is full with a small number of times. After successful domestication, we can carry out regular and quantitative feeding. In the later stage, according to the growth situation of herring, we should not feed too much at one time. To avoid causing indigestion of herring, the feeding times can be increased appropriately in the peak growing season to promote the growth of herring.

Culture management

Herring culture should be checked every morning and evening to check the water quality and growth status of herring, the water quality should be changed regularly, the healthy water quality is generally green, its transparency is about 50-60cm, the growth of herring is relatively fast in summer, the food intake and activity of herring are also increased, because the high temperature in summer is easy to cause hypoxia, so we should pay attention to the dissolved oxygen in the water, and turn on the aerator in time. Disinfection in the later stage should also be done well.

Although herring can be cultured in the north, it is mainly produced in the plain area south of the Yangtze River, and less in the north of the Yangtze River.