Method for scientifically and precisely breeding rice field eels

Abstract

The invention discloses a method for scientifically and precisely breeding rice field eels. The method is characterized in that a culture pond is arranged in the east-west direction, a length-width ratio of the culture pond is 3:2, the area of the culture pond ranges from 2000m<2> to 10000m<2>, the heights of ridges of the culture pond range from 1.8m to 2.0m, the water level of the culture pond needs to be kept stable in a range from 1.4m to 1.5m for a long term, and water inlet and drainage facilities of the pond are perfect; the pond needs to be cleaned and disinfected 10-15d before rice field eel seeds are released into the pond, water in the pond is pumped completely, whether loopholes are formed in the pond or not is checked, then the pond is cleaned by the aid of quicklime, the consumption quantity of the quicklime ranges from 1125kg / hm<2> to 2250kg / hm<2> when the depth of water in the pond ranges from 7cm to 10cm, the pond is cleaned by the aid of bleaching powder if the water in the pond cannot be completely drained, new water is filled into the pond 7d after the pond is cleaned and needs to be filtered in advance, and basic fertilizers are applied after the water is filled into the pond. The water is cultivated by a process including that organic fertilizers such as chicken manure and pig manure are stacked at four corners of the pond, consumption of the organic fertilizers ranges from 2250kg / hm<2> to 3000kg / hm<2>, and the rice field eels can be bred in the pond 5-7d after the fertilizers are applied. The method has the advantages that fast growth of the rice field eels can be promoted by means of adding the compound microbial fertilizers, the EPA (eicosapentaenoic acid) content is increased, rice field eel diseases are reduced, the quantity of shrimps which die of diseases is reduced, beneficial microorganisms in the water are increased, and both the final quality and the quality are improved.

Description

technical field [0001] The invention relates to a method for aquaculture, in particular to a method for cultivating rice field eels without pollution. Background technique [0002] Field eel, belonging to Cyprinidae and Loachidae, is a small economic fish and belongs to warm water fish. The growth water temperature is 15~30℃, the optimum water temperature is 22~28℃, and the water temperature is higher than 32℃. Drilling into the mud, the water temperature It dives into the mud and hibernates below 7°C. Loach can not only use gills to breathe, but also use skin and intestines to breathe. It has strong adaptability to the environment and strong hypoxia tolerance. It usually lives at the bottom of the water, has the habit of drilling mud, and likes neutral and slightly acidic clay soil. Field eels are omnivorous fish that often feed on daphnia, silkworms, aquatic plants, and microorganisms in the water. They are often used to breed bait by stacking chicken manure, cow manure,...

AI Technical Summary

Problems solved by technology

Existing single-type fish fertilizers and compound-type fish fertilizers also have a common shortcoming, that is, they cannot kill harmful bacteria and insects, so they lack the effect of effectively preventing and controlling fish diseases

The microbial compound fish fertilizer can increase the content of beneficial bacteria in fish ponds and effectively reduce the occurrence of fish diseases. At present, there is no report on the special use of this compound microbial fish fertilizer