Detailed Guide to Pre-Winter Preparation and Overwintering Techniques for Rice Field Eel Farming

After entering October, those engaged in rice field eel farming should pay close attention, because in another month or so, it will almost be time for the rice field eel's hibernation period. So, before the rice field eel overwinters, what exactly should be done for them?

1. Let the rice field eels eat their fill so they have enough physical energy; 2. Manage the water well; many waters that have turned black and have algae need to be treated; 3. Kill the insects on the water peanut, and you can also spread straw on the water peanut to keep it warm; 4. Prevent enemies, water rats, birds, thieves. In addition, there are some clever methods for overwintering rice field eels. 1. Overwintering with water method. The rice field eel is a cold-blooded fish with variable body temperature and strong adaptability to the environment. When the temperature drops below 10°C (growth temperature 15-30°C), it rarely feeds and enters a burrow to hibernate. At this time, for the safe overwintering of rice field eels, the water level of the breeding pond should be raised to 30-50 cm to ensure that the water temperature at the bottom of the pond in winter is above 0°C. If the whole pond freezes, the ice must be broken open every day to prevent the rice field eels from lacking oxygen. 2. Dry pond overwintering method. When the water temperature is below 10°C, drain the pond water, ensure that the soil at the bottom of the pond is moist, and cover the surface of the pond soil with a layer of straw or wheat straw or corn stalks, with a thickness of 30 cm. 3. Indoor overwintering method. When the temperature is below 10°C, transfer the rice field eels raised in the pond to indoor overwintering. Indoors, use a pond or bucket according to the ratio of 1 kg of rice field eels to 2 kg of water, place the rice field eels in the pond or bucket, change the water once a day, and ensure the indoor temperature is between 2-5°C. 4. Plastic greenhouse overwintering method. When the winter water temperature is below 12°C, using a plastic greenhouse for overwintering also works very well. The water level of the pond in the plastic greenhouse only needs to be slightly higher than the breeding water level, and the temperature inside the greenhouse should be kept between 2-8°C. Every day at noon when the temperature is highest, open the ventilation holes of the greenhouse to let the air inside be fresh, and install ventilation holes at the top of the greenhouse to prevent the rice field eels from dying due to lack of oxygen.