Eel is a kind of migratory fish that is born in the sea, grows up in fresh water and then returns to the sea to spawn. The feeding intensity of pooled eels decreases in mid-summer. When water temperature is lower than 15℃ or higher than 30℃, appetite decreases and growth slows down. Stop feeding below 10℃. Winter diving into the mud, hibernation. Eels can breathe with their skin, sometimes out of water, and do not die as long as their skin remains moist. The adult eel grows fast, looks round, looks like a round cone, the color is black and healthy, more artificial culture, the meat is crisp. Eel is rich in nutrition, delicious in taste, less prickly and meaty, and has the function of cooling and relieving the summer heat, nourishing and strengthening the body. Eel meat, bone, blood, swim bladder and so on can be used as medicine. Its meat taste sweet, flat, nourishing strong, to the wind insecticidal effect.
Edible eels are bred by breeding eels weighing about 20g. To develop commercial eels weighing 150g. Breeding methods can be divided into three kinds: exclusive breeding, mixed breeding and collocation breeding. The key lies in feeding, water quality management and disease control.
Bait feeding requires quality, positioning, quantification and timing.
Water quality management should pay attention to water quality cultivation and control to prevent water change. The normal water quality of the eel pond is light green, the transparency is about 20cm, the DO requires more than 5mg/ L, and the pH value is 7.5-8.5. At this time, the eel feeds vigorously and grows rapidly.