Generally speaking, eels are animal feed-based fish, and require fresh feed, do not eat rotten animal feed. As far as artificial culture is concerned, the feed for eels should be mainly animal feed, supplemented by plant feed. 1, animal live feed: this kind of feed mainly has eels like to eat earthworms, silkworm pupae, fly maggots, snails, mussels and small fish and shrimp. Earthworms are the most popular feed for eels, dry body protein content of 61%, close to fishmeal and silkworm pupae. These feeds **** the same point is the high protein content, nutrient-rich, conducive to the growth and development of eels, is the main body of the net box eel feed. 2, plant feed: eels on plant feed is mostly compulsion feeding. Its digestion is characterized by animal protein, starch and fat can be effectively digested, the plant protein and cellulose can hardly be digested. In large-scale aquaculture, a certain amount of plant-based feed is required. This is because eels in artificial culture environment are easier to get food than individuals in natural environment, and eat more, eat well, put a certain amount of fiber-rich plant feed is conducive to promote the intestinal peristalsis of eels, improve feeding intensity. Usually add a certain amount of wheat flour (also a binder), cornstarch, bran, chaff and soybean dregs in the compound feed. 3, artificial feed: feeding artificial feed is the trend of large-scale eel farming. In recent years, trials have proved that compound feed is suitable for eel farming. In general, the protein content of compound feed is high, generally between 35%-45%, or even higher. At the same time requires a certain degree of palatability. Of course, the proportion of animal feed in compound feed is still required to be larger. Such as Hubei Province, Massachusetts City, Yu Jisheng's eel feed formula 1 for: 28% fish meal, 10% soybean cake powder, earthworms (folded dry) 20%, 30% cooked soybean meal, blood meal 2.5%, corn gluten 1.5%, 3% calcium dihydrogen phosphate, 5% binder. 4, other feed: according to the eel's habits, animal scraps can be used as supplementary feed for artificial eel farming, such as pig, cow lungs and other offal, but the requirement of freshness is better, can not be rotting and deteriorating offal. There are also insects, some people in the net box above the use of black lights and other luring insects to feed eels also achieved better results. In the net box feeding a certain amount of loach, snails, etc., with a certain technology to let them reproduce in the net box small loach, small snails become live bait for eels.