The breeding of Monopterus albus mostly belongs to the pairing of offspring and parents, and some of them are paired with the first two generations of males. However, in the absence of male eels, a few female eels in the same batch are transformed into male eels, and then breed with the same batch of female eels, which is the special feature that eels are different from other animals.

The breeding season of Monopterus albus is from June to August every year, from embryonic stage to the first sexual maturity. Monopterus albus will lay eggs after the first sexual maturity, and the ovary will gradually become the testis after laying eggs. Monopterus albus was hermaphrodite for a period of time during sexual transformation.

Generally, when Monopterus albus grows to about 22 cm, sexual inversion begins, and partial inversion is completed at 36-48 cm, that is, Monopterus albus is hermaphrodite at this time. When the eel grows to more than 53 cm, it basically completes the reversal and has become a male eel.

Extended data:

The activity habit of Monopterus albus is to lie in the cave during the day and go out at night, that is, to go out for food at night. You can catch it at night according to this habit. The gill of Monopterus albus is in a degraded state, and it mainly relies on epidermis and auxiliary respiratory organs to breathe oxygen directly from the air. Therefore, people can live normally in water with low oxygen content, and correspondingly, the density of artificial culture can be increased. Monopterus albus is rich in mucus, so long as it is kept moist, it will not die, and the transportation is very convenient.

Monopterus albus mainly feeds on benthic animals, such as water worms, snails, tadpoles, small fish and shrimps. In addition, they eat some rotten potato chips, seaweed, fruits and vegetables.

The spawning period of Monopterus albus is from April to August, and the spawning amount is small, generally about 500. When spawning, the parent fish often spits at the place where they dig holes, and the eggs are laid in the roots of aquatic plants or in the crevices near the holes. Foam has the function of preserving fish eggs. Generally, fertilized eggs hatch young fish in about 8 days, and the hatched young fish can swim and take the initiative to eat in about 12 days. During this period, the young fish are protected by male and female parents and nourished by yolk sac.

Phoenix. -You know what? Monopterus albus is actually hermaphrodite.