To be successful in raising eels, management is very important

In order to improve the survival rate of raising eel and ensure the success of raising eel, in addition to grasping the introduction of eel species and the freshness of bait, we must also do a good job in the management of five key links: first, water quality management to keep the pool clean and moderate pH is a necessary condition for speeding up the growth of Monopterus Albus. In the production of raising eel, the water quality management should be strengthened from three aspects: first, the proper water level should be maintained. Shallow water can easily lead to deterioration of water quality, causing rice field eel to stop eating and suffering from various diseases. Second, it is necessary to change water frequently. Under normal circumstances, 3mi should change water once every 5 days, and it is best to change water every 2 days in midsummer. The newly changed water, especially the well water, should be pumped into the reservoir one day in advance to make the water temperature close to that of the pool water, and the temperature difference should not exceed 3 ℃. Third, the residual food should be removed in time. 3 at a time. After 4 hours, the residual bait should be removed with a fine net ladle. Especially in the high temperature season in summer, in order to prevent the fermentation of residual bait to cause a large number of pathogenic microorganisms, it is necessary to pour raw lime water into the pond or cage once a week to kill bacteria and adjust the acid-base balance of the water. Second, bottom quality management many rice field eels from farmers often get sick and grow slowly. One of the most important reasons is that there is something wrong with the bottom quality of eel ponds. It is best to crush the eel directly with yellow clay and lay the bottom of the pond. do not directly take the black mud from the river pond as the bottom, because of its high fertility and many bacteria, Monopterus Albus is very easy to be infected. If you use river pond mud as the bottom material, you should first fish out the stall 3. For 5 days, make it loose, spread it into the bottom of the pool, and then inject water into the pool. For the sick eel pond, the bottom silt should be removed thoroughly and replaced with exposed river pond mud, so as to put an end to bacterial reproduction. If the eel is raised in a cage, the exposed river pond mud should also be used as the sediment, with a thickness of between 10 and 15 centimeters. Third, feeding management eel species have a small density in the wild environment, a wide range of activities, and look for food on their own, so they basically do not eat artificial feed or eat very little in the first few days, so they should be domesticated. The specific methods of domestication are as follows: the eel species are not fed within 3 days after stocking, so that all the food in the eel species is digested, become empty, and make it hungry, then feed the rice field eel favorite earthworms and chopped small miscellaneous fish and animal viscera at night, the feeding amount is controlled within 1% of the weight of the eel species, and the exuberant food intake of the rice field eel is observed 3 days later, that is, the eel is fed at a fixed point, generally putting 3 Mi 4 points in each box (14 square meters). If you use artificial ponds to raise eels, set up 5-6 points. Fourth, seasonal management focuses on summer, autumn and winter three seasons management: first, to do a good job in summer heat prevention. As the saying goes, "after June, the ricefield eel becomes a gold brick." In summer, climbing plants such as pumpkin, towel gourd, lentils and grapes can be planted around the pond or covered with straw, or an appropriate amount of floating plants such as water hyacinth, water lotus and duckweed can be put on the surface of the eel pond for shade, which has a good cooling effect; second, do a good job of fattening in autumn. The early autumn is the golden stage for the growth and fattening of Monopterus Albus. In this period, fresh bait with comprehensive nutrition should be fed as far as possible in order to prepare for the winter period. In addition, the temperature continues to drop at the end of autumn, so we can use transparent plastic film to build a high artificial greenhouse above the eel pond, which can ensure normal light and prolong the growth period for about a month, which has a very significant effect on obtaining high yield of Monopterus Albus. Third, to ensure safe overwintering. When the temperature drops below 10 degrees Celsius in November, Monopterus Albus stops feeding and enters a dormant period. For the ricefield eels that failed to meet the listing specifications or were prepared to store them on the market when the price was high during the Spring Festival, safe overwintering measures should be taken in time: first, dry ponds overwintering. After stopping eating, drain the pond water and cover it with 15Mel 20cm thick straw buns or crop orange stalks to keep the sediment moist and free of ice. The mulch should not be piled up too dense to prevent rice field eel from suffocating to death; second, overwintering in deep water. That is, before the rice field eel enters the overwintering period, raise the pool water to about 1 meter and let it hibernate in the underwater soil. During the overwintering period, if the pond water freezes, the ice should be broken manually in time to prevent the eel pond from lack of oxygen caused by ice sealing. 5. Disease prevention management in Monopterus Albus culture, disease prevention has always been a difficult problem. This is because Monopterus Albus is scaleless and vulnerable to pathogenic bacteria and parasites. In addition, it is sensitive to a small number of drugs, and there are not many specific drugs for special use. Therefore, ecological prevention should be given priority to in production, such as strict disinfection and filtration of breeding water, raising toads in eel ponds, reducing human injury, and so on. In peacetime, if you see a sick eel, you should pick up and isolate it in time, find out the cause and prescribe the right medicine.