How to raise fish in a pond is not easy to die.

In recent years, the development of fish culture in China is getting better and better. Pond fish culture is also constantly promoting high-density domestication of fish culture, so as to improve the level of per unit yield of pond fish. However, when we raise fish in ponds, we are often prone to various problems that lead to the death of fish and seriously affect the efficiency of fish culture. So how to raise fish in the pond so that it is not easy to die? The following editor will give you a brief introduction, let's have a look!

1. Water quality management

In the process of fish culture, we must pay attention to observe the changes in water quality, and it is best to patrol the pond about three times a day to avoid sudden changes in water quality. When there are a large number of cyanobacteria in the pond, the water should be discharged in time on a sunny day. After drainage, sprinkle an appropriate amount of copper sulfate and other chemicals into the pond. Then, about four hours after spraying, fresh water is injected into the pond. In the new water, we should also pay attention to the absence of cyanobacteria and other substances to ensure the water quality, and then directly inject water to the original water level of the pond.

2. Prevent hypoxia

If there is no oxygen in the pond, it is fatal to the growth of fish. When there is a lack of oxygen in the pond, the fish will have a floating head, and when it is serious, the fish will have an upward belly and swim weakly. At this time to pay attention to the timely addition of new water, in water injection, it is best not to stir up spray, and do not make a sound and start the aerator, so as to avoid causing fish to be frightened. Let the water form a circle circulation to relieve the anoxia of fish in time. If the floating head phenomenon is light, then you can add oxygen to the water, or sprinkle an appropriate amount of chemical oxygenator.

3. Prevention of poisoning

The sudden death of fish is often caused by poisoning. The first is ammonia poisoning, which generally occurs in winter and spring every year, when the temperature is lower, and fish are prone to sudden death in large numbers. It is mainly because the silt at the bottom of the pond is too thick, or too much fertilizer during fertilization leads to excessive ammonia, resulting in the death of fish poisoning, so it is necessary to clear the silt and change water in time. And if pesticides flow into the pond, it can easily lead to fish poisoning and death. If the fish are poisoned by pesticides, it is basically impossible to save them, so it is necessary to prevent pesticides from flowing into the pond.

4. Reasonable operation

In the hands of fish farming, various daily operations, if improper, then it is also very easy to lead to fish death. Among them, we must pay attention to the density, many people in the fish sales season, generally choose to salvage it out, and then put it in the cage for temporary storage. However, the density was not controlled properly, causing the fish to squeeze each other in the cage. Especially for sunken cages, if they encounter wind and waves, then the fish will gather against the waves, resulting in serious local hypoxia, resulting in a large number of deaths, seriously affecting the efficiency of culture.

The above is a brief introduction to how to raise fish in the pond. In addition, we should also pay attention to the rational use of drugs, disease prevention and so on. That's all for today's introduction. This article is for reference only. Thank you for your reading and support.