Detailed Explanation of the Correct Methods and Operational Steps for Fish Pond Disinfection
Fish farming is a very common aquaculture project in China. When raising fish, to prevent diseases, pests, insects and various harmful substances from affecting the growth of the fish, we need to disinfect the fish pond regularly. Fish pond disinfection is very important for the growth of fish. However, many people still do not know how to disinfect a fish pond. Below, the editor brings you several methods of fish pond disinfection. Let's take a look!
1. Bleaching powder
Bleaching powder has a relatively high chlorine content. If bleaching powder is sprinkled into water, it will react chemically with the water to produce chemical substances such as hypochlorous acid. Then these chemical substances will release ecological oxygen, and their sterilizing effect is very obvious. We should control the amount of bleaching powder properly according to the pond area, and sprinkle it evenly over the whole pond. When bleaching powder is not in use, attention should be paid to keeping it sealed, because it decomposes very easily when exposed to air. In addition, bleaching powder also poses certain harm to the human body, so when sprinkling bleaching powder, attention should be paid to protective measures.
2. Quicklime
When quicklime meets water, it produces a highly alkaline substance and gives off a large amount of heat, and its sterilizing ability is very strong. However, if quicklime is used for sterilization, it is not suitable for there to be fish in the fish pond, otherwise it will also cause great harm to the fish. Therefore, we generally use quicklime for disinfection two weeks before stocking fry, and during disinfection, the pond water level should be controlled at about 8 cm. Then dig several small pits around the pond, and put the quicklime into them so that it reacts. After heat is generated, use a shovel to sprinkle it evenly over the whole pond. While sterilizing, quicklime can also improve the fertility of the soil and water quality, increase mineral elements, and has a certain fertilizing effect.
3. Tea seed cake disinfection
Tea seed cake refers to the residual dregs after oil-tea camellia seeds are pressed for oil. These dregs contain tea saponin, and tea saponin contains certain toxins. It can dissolve the red blood cells of fish, so it is very effective in preventing and controlling some trash fish. Tea saponin can also dissolve in alkaline water, so its effect is even more obvious when used together with quicklime. Tea seed cake disinfection is generally carried out on sunny days in winter, and it is best to start when trash fish are gasping at the surface. Sprinkle it into the pond, which can both improve the disinfection effect and reduce costs. Moreover, tea seed cake can also improve water quality and provide certain feed for the fish.
4. Precautions
When using bleaching powder for disinfection, we must pay attention to controlling the dosage. If it is too low, the effect will not be obvious, but if it is too high, it will cause great harm to the growth of the fish. Therefore, when using bleaching powder for disinfection, we should first pay attention to calculating the water quality, volume and fish growth conditions of the fish pond. Then reasonably control the time according to factors such as weather changes, so as to maximize the medicinal effect. Usually the best time to apply the medicine is around noon on a sunny day, and it is not suitable to apply the medicine on cloudy and rainy days or when the temperature is relatively low.
The above is a brief introduction to fish pond disinfection methods and precautions. Fish pond disinfection is very important for the growth of fish. If disinfection is not carried out in time or is done improperly, in mild cases it will reduce the growth rate of the fish, and in severe cases it will lead to massive fish deaths, seriously affecting aquaculture benefits. That is all for today's introduction. This article is for reference only. Thank you for reading and supporting.