Ecological environment optimization regulation method for prawn breeding pool on alkaline land

Abstract

The ecological environment optimizing control method for prawn cultivating pond in saline soil includes: winter freezing and sun shining to kill life in pond, setting plastic enclosure in the slope of pond, filtering incoming water with three-stage screen and applying KCl into water to reach Na / K ion concentration ratio of 20-50; twice sterilizing with bleaching powder concentrate in the effective concentration of 6 ppm in the 15th day and the 35th day separately; applying organic fertilizer liquid to culture biological bait after the chemical toxicity disappears; breeding health prawn fry without prawn white spot syndrome and avoiding use of alive bait carrying pathogen; and no water change during cultivation period. The said method can optimize the ecological environment in the prawn cultivating pond and prevent prawn white spot syndrome.

Description

technical field [0001] The invention belongs to the field of optimizing the breeding ecological environment in aquaculture, and in particular relates to a method for optimizing and controlling the ecological environment of a prawn breeding pond in saline-alkali land. Background technique [0002] Since the outbreak of White Spot Syndrome (WSS) in prawns nationwide in 1993, the aquaculture industry of prawns has entered the lowest ebb. Although a large amount of manpower, material and financial resources have been invested in scientific research for more than ten years, due to the circulation of the ocean and the wide range of pathogenic hosts of shrimp white spot syndrome virus (WSSV), this epidemic disease has never been seen in the culture of coastal tidal flat ponds in my country. Obtain effective control, the economic loss that causes to my country's prawn aquaculture every year is still high tens of billions of dollars. [0003] In order to avoid the infection of prawn ...

AI Technical Summary

Problems solved by technology

However, during the promotion, it was found that there are two factors that seriously hinder the development of this industry: First, due to the special natural conditions of the saline-alkali land, the development of shrimp farming is different from coastal beaches, and the ion ratio in the underground salt water used is different from that of natural sea water. The growth of prawns is very large, and the growth of prawns is limited, and even death occurs because of this; second, in many areas, due to careless stocking of shrimp seedlings carrying prawn white spot syndrome virus, prawn white spot syndrome disease also began to appear in prawn breeding ponds in saline-alkaline land. There are also outbreaks in some areas