1, pond conditions
The pond for breeding Monopterus albus should be close to the water source, with fresh water quality and no pollution source, and it is better if it has convenient transportation and independent water inlet and drainage systems. For raising eel in cages, it is suggested that the pond should be rectangular in east-west direction, sheltered from the wind and sunny, with an area of10× 667m2, a slope ratio of1:2.5 ~ 3, a flat bottom and a water depth of1.5 ~ 2.0m..
2, eel species stocking
The stocking specification is about 25g∕ tail, the stocking density is 1.5㎏/㎡, and the stocking time is in the middle and late May. Immerse the eel species in 3% ~ 4% salt water bath 10 minute before releasing them. During the immersion bath, the injured and weak eel species are eliminated again and graded in size. In addition, the specifications of stocking in the same cage should be consistent, so as to avoid killing each other because of the different feeding capacity.
3. Feed feeding
Monopterus albus was not fed for 3 days before it was put into the box, but was fed from the fourth day, and the special compound feed for Monopterus albus soaked in filtered fish slurry was used. According to the intensity of eating, the amount of fish slurry water is gradually reduced until it is completely used. Usually, it can induce Monopterus albus to eat compound feed normally within 5 ~ 7 days. When Monopterus albus normally eats the ingredients, the feed is fed on the aquatic plants, and each cage is fixed at 3-4 positions, starting to feed 1 time every day and feeding at 5: 00-6: 00 in the evening. After 10, the feeding time was changed to 6:00 in the morning and 7:00 in the evening 1 time.
4. Daily management
Water should be changed in time according to the change of water quality, generally every 1 0 ~15 days1time, and the amount of water changed each time accounts for 1/3 of the total water in the pond to keep the water fresh. The cage may be damaged due to quality or enemy damage such as rats, so it should be checked regularly for damage. In addition to killing rats regularly at ordinary times, we can also judge whether the box is broken according to the feeding situation of Monopterus albus. In rainy days, attention should be paid to the change of pond water level to prevent the water from rising or the water peanuts from growing out of the box.
Living habits of Monopterus albus
Monopterus albus likes to drill holes in humus mud or burrow in the crevices with water on the embankment during the day. Little activity during the day, and foraging at night. Nocturnal, oral skin folds can breathe, so you can breathe air directly. In winter and dry season, caves will be dug as deep as 1-2 meters underground, and several fish will inhabit. Gills are underdeveloped, but with the help of the inner wall epidermis of oral cavity and laryngeal cavity as the auxiliary organ for breathing, they can breathe air directly; It can survive when the oxygen content in water is very poor. After coming out of the water, as long as you keep your skin moist, you will not die within a few days.
Monopterus albus is a ferocious carnivorous fish, which often goes out to eat at night. It can prey on various small animals, such as insects and their larvae, as well as frogs, tadpoles and small fish. The feeding of Monopterus albus mostly belongs to the way of sipping, and whenever it feels a small animal near its mouth, it opens its mouth and sips. It is an omnivorous fish that feeds on all kinds of small animals. It is greedy in sex and eats most vigorously in summer. It can not eat for a long time in cold season without death.