It is an omnivorous fish that feeds on various small animals. It is greedy and eats most vigorously in summer. In the cold season, it can go without eating for a long time without dying.
Extended data
1, growth environment
As an underclass fish, it likes to inhabit rivers, lakes, ditches and rice fields. Except the northwest and northeast, it is distributed all over the country.
2. Nutritional analysis
(1) Eel is rich in DHA and lecithin, which is the main component of cell membrane of human organs and tissues and an indispensable nutrient for brain cells.
(2) Monopterus albus contains "Monopterus albus" which can lower and regulate blood sugar, and its fat content is low, so it is an ideal food for diabetic patients;
(3) Eel is rich in vitamin A, which can improve vision and promote the metabolism of skin membrane.
3. Living habits
(1) Cave (Habitat)
Eel is a kind of benthic fish living in fresh water, which requires a relatively stable living environment and likes to live in places with dark light, small water temperature difference and less human interference. I like to live in shallow water with soft humus and static cement, about 30 cm from the ground.
Eels like to burrow to live, and burrow directly without dumping soil. There are two or more holes in the cave, and there is also a breeding hole, which is wider and more hidden. The burrowing of eels varies with the temperature and water level, and the burrowing of eels in different regions and specifications is also different.
(2) the reversibility of sex
Eels have sex reversal, with females appearing first and males appearing later. From embryo to sexual maturity, that is, eels are 1-2 winter age, and those whose body length is less than 30 cm are generally females.
Female eels enter the hermaphroditic stage after spawning, at which time eels have no reproductive ability, so it is difficult to identify the sex. With the growth of age and body length, female ovaries gradually become testicles and transition to males. Eels over 50 cm in length are generally male, and they are male all their lives.
The sex reversal of eels is influenced by nutrition, and the sex reversal is advanced when food is scarce. Female eels should be fed with high-calorie, high-protein and high-vitamin feed during the breeding period, which is beneficial to the reproduction and growth of eels. Because the growth rate of male eel is more than twice that of female eel, it can increase economic benefits to make eel male when necessary and span the breeding period.
(3) Partial eclipse
Eel is a typical ferocious fish that mainly eats meat. Eating too much is insatiable. Daily food intake accounts for 5%- 10% of body weight. Eels can also resist hunger. They won't die if they don't eat for a long time, but their bodies are thin, their resistance drops, and they are easy to get sick.
Eels like to eat fresh bait, but they don't eat bad or rotten food. They like larvae such as small fish, shrimp and aquatic insects best, followed by terrestrial insects and earthworms. They also like to eat mussels and snails with shells.
Eels eat by sipping, which is rare in fish and can quickly attack and devour prey within an effective range. If you feed a certain bait for a long time, it is difficult to change its eating habits, so wild eels should be tamed in a short time.
According to this characteristic, artificial compound feed with low cost and high meat weight gain rate should be selected for long-term feeding. Where conditions permit, lights can be set in the pond to lure insects into the pond for eels to eat.
(4) Clustering
Eels like to get together and get together, especially young eels. Its main purpose is to strive for more strength to adapt and adjust the living environment. If eels often live alone or don't make holes, it's abnormal.
This characteristic is suitable for high-density culture and identification of eel quality. In order to prevent eels from being entangled in groups and biting each other, loaches can be mixed. The stocking ratio is generally 100 eels with 7-8 loaches.
Baidu encyclopedia-eel
Baidu encyclopedia-Monopterus albus
Baidu encyclopedia-Monopterus albus