Causes and control measures of bottoming of fish ponds in winter

After the Beginning of Winter, we obviously feel that the temperature is getting cooler gradually, and it is also the season of frequent cold air, and for friends in aquaculture, this is also a period of great headaches. If the cold prevention work is not done properly, it is very likely that the bottom will occur, resulting in the death of a large area of fish and shrimp. So how to prevent the bottom of the fish pond? Let's take a look.

1. The cause of flooding.

First, there is too much silt at the bottom of the pond, because the density of fish and shrimp in the pond is too high, resulting in a large amount of feces, or too much feeding, resulting in a large amount of feed deposited in the pond, feces and feed accumulated for a long time, and finally the pond will produce a lot of silt. The second is the influence of cold air, resulting in excessive temperature difference between the upper and lower water bodies, causing strong convection in the water body, thus stirring up the mud, which is the pan-bottom. In addition, organic matter and substances in the water will react to form toxic substances, endangering the health of fish and shrimp.

2. Preventive measures

The harm caused by flooding is that fish and shrimp suffocate to death, so farmers need to make some efforts in feeding, appropriately reduce the amount of feeding during the period of cold air attack, do not overeat fish and shrimp, and avoid consuming too much oxygen in the process of eating and digestion. In this way, even if there is a bottoming phenomenon, then there is enough oxygen for fish and shrimp to survive, and enough time for farmers to deal with it. At the same time, attention should be paid to the weather forecast and the transformation of the pool land should be done in advance. The bottom material improver can not only absorb and degrade some harmful substances, but also promote the decomposition of organic fertilizer in the sludge.

3. Countermeasures

Even if comprehensive prevention work has been done, it is still possible to flood the bottom in case of extreme weather, and in the case of flooding, the farmers should immediately increase the oxygen content in the water and let the fish and shrimp recover before detoxification. When you need to pay attention, the movement of this process should not be too loud, so as not to cause stress reaction.

The above is the introduction of the reasons and control measures for the flooding of fish ponds in winter. I hope it can help you. If you want to know more about it, please pay attention to us.