That is to say, the eel cultured in May of that year can grow to about 15cm by 65438+February, and to about 100g to 150g when cultured in June of the following year.
Artificial feeding should pay attention to the following points:
The stocking time of Monopterus albus should be in April, May or August to September to avoid the sexual mature breeding period of Monopterus albus from mid-May to July. The optimum temperature for the growth of Monopterus albus is 24 to 28 degrees Celsius.
Feed eels regularly, from 6 pm to 8 pm. Feed should be fresh, not rotten. Before feeding, the feed should be washed, soaked in 3 to 5 grams of salt per cubic meter of water for 10-20 minutes, and then washed with clear water before feeding. Freshwater small miscellaneous fish are generally selected, and the daily feeding amount is 3%-5% of the total weight of Monopterus albus in the cage.
When artificially feeding, due to feeding a large amount of feed, the excrement discharged by Monopterus albus is easy to pollute the water quality, so fresh water should be replenished frequently to keep the water fresh. Change the water every 7 days in spring 10 day, and every 3 to 5 days in summer. Cages should also be disinfected regularly, and every cubic meter of water should be bleached with 10 g bleach, which will spill all over the pool. After stocking, a proper amount of loach can be stocked in the cage, which can divert oxygen and eliminate the residual bait of Monopterus albus by using the habit of loach running upstream and downstream. Put a certain amount of silver carp in the pond to adjust the water quality. Clean the cage in time, remove excessive sundries and attached algae, and keep the water exchange inside and outside the cage smooth. It is best to put aquatic plants, especially water hyacinths and water peanuts, in the cage to provide a good place for the growth and habitat of Monopterus albus. When transplanting Alternanthera philoxeroides, it is best to remove the roots, wash them, and soak them in 5% salt water for about 10 minute to prevent harmful organisms such as leeches from being brought into the box with the grass.
The larvae of Monopterus albus should be strictly disinfected before being put into the box, especially in the susceptible period of Monopterus albus from July to September. Every 20 days, the whole box should be sprinkled with 1ppm bleaching powder, and the sick Monopterus albus should be isolated in time. Find the disease, prescribe the right medicine in time, and minimize the loss.
Fishing: During the period of 65438+February every year, when the water temperature drops below 12 degrees, the feeding and growth of Monopterus albus basically stop. At this time, the eel in the cage will be arrested and listed. So fishing in 65438+February is enough.