Methods of optimizing feeding and Management of cultivated Monopterus Albus in Autumn and Winter

Monopterus Albus is a semi-hibernating fish. When the temperature is below 15 ℃, the eel basically does not eat motionless and hibernates by micro-breathing. Therefore, when the temperature drops gradually in autumn, the foraging and activity of eels will gradually weaken. At this time, by strengthening the optimal management of autumn and winter, we can not only continue to gain fat and weight, but also improve the survival rate of overwintering and increase the annual yield in the coming year. The main measures for optimizing feeding and management of Monopterus Albus in autumn and winter are as follows:

First, feed more fat feed. Increasing the feed with high fat content can make the eel accumulate more fat for consumption during hibernation and hibernation. The feed with high fat content mainly includes silkworm pupa, earthworm, fly maggot and so on. When feeding ricefield eel with fat feed as early as possible, it should be carried out before November, because the temperature in autumn is still relatively high, which is beneficial to the utilization, absorption and transformation of fat feed and increase the energy needed for eel to survive the winter. enhance its ability to survive the winter cold and disease.

Second, reasonable capture and listing. Eels like to drill into the mud at the bottom of the pond, especially when the temperature drops obviously in late autumn, they will drill into the deep mud to survive the winter. Therefore, for adult eels that meet the listing specifications, they should be reasonably captured and listed before winter as soon as possible. When catching, you should first drain the pool water, remove the surface mud, and then use both hands to catch the mud at the bottom of the pool. To avoid using shovels, shovels and other hard sharp tools to dig, to prevent shoveling or bruising the eel. At the same time, it is necessary to catch the big and stay small in order to lay eggs and reproduce in the coming year.

Third, strengthen protection for overwintering. There are two methods for overwintering protection of eels left in the pond: one is the eel pond with good water source, which can be overwintered in deep water. That is, keep the water layer 50 to 70 centimeters deep in the pool, and put some aquatic plants and duckweed on the surface of the water. When it freezes in winter, knock on the ice to breathe. In this way, it can not only maintain the temperature of the pool bottom, but also maintain the oxygen content of the pool water, and create an ideal overwintering condition for the eel. Second, the eel pond where the water source is not good enough can be drained to survive the winter when the eel begins to hibernate. However, it should be noted that the pond soil should be kept moist and not too dry; the pond soil should be covered with a plastic net to prevent cats, dogs, weasels, mice and other animals from preying on eels; in case of severe cold and freezing, the pool surface should be covered with heat preservation and anti-freezing.