Application of alcaligenes faecalis in preparation of microbial agent for efficiently degrading ammonia nitrogen and nitrite nitrogen in aquaculture water

Abstract

The invention provides application of alcaligenes faecalis in preparation of a microbial agent for efficiently degrading ammonia nitrogen and nitrite nitrogen in aquaculture water. The microbial agentcomprises alcaligenes faecalis powder with the bacterium content not lower than 5.0 * 10<8>CFU / g and a carrier, wherein the mass ratio of the alcaligenes faecalis powder to the carrier is 1: (50-100). The alcaligenes faecalis powder is prepared from alcaligenes faecalis GBW-HB1905 with the preservation number of CGMCC No. 20364. The bacterium has wide salt resistance, and the growth salinity range is 15-35 thousandths. The microbial agent has the capacity of efficiently and rapidly degrading ammonia nitrogen and nitrite nitrogen in aquaculture water, can continuously and stably maintain ammonia nitrogen and nitrite nitrogen within a low concentration range, can effectively solve and improve the problem of high concentration of ammonia nitrogen and nitrite nitrogen in aquaculture water, and is beneficial to aquaculture and income.

Description

technical field [0001] The invention belongs to the technical field of microorganisms, and relates to the application of Alcaligenes faecalis in the preparation of microbial bacterial agents for efficiently degrading ammonia nitrogen and nitrite nitrogen in aquaculture water. Background technique [0002] In recent years, with the continuous improvement of aquaculture level, the aquaculture density is also increasing while pursuing higher economic benefits. Therefore, how to ensure the health of aquaculture water quality under high-load aquaculture density is particularly critical, because the aquaculture density varies. Enlargement will inevitably increase the amount of bait fed to the pond body, and the resulting residual bait and undigested organic matter content will also continue to increase, exceeding the self-repair capacity of the water body, especially in shrimp farming, the protein content of the bait is more abundant , more organic nitrogen sources will remain in ...

AI Technical Summary

Problems solved by technology

According to reports, the harm of ammonia nitrogen to aquatic organisms mainly comes from the harm of non-ionic ammonia. After non-ionic ammonia enters the aquatic organisms, it will have a significant impact on their metabolic reactions and membrane stability, resulting in dyspnea and non-feeding of the cultured organisms. , decreased resistance, convulsions, and coma, etc., will affect the biochemical indicators and health status of aquatic organisms, and in severe cases will also lead to the mass death of aquaculture organisms; and nitrite poisoning will directly affect and weaken the ability of the blood of aquaculture organisms to transport oxygen , leading to symptoms of hypoxia in the cultured organisms, resulting in abnormal appearance and internal organs, and then death

Therefore, the excessive presence of these two substances will seriously affect the health of aquatic organisms in the aquaculture water, and they are two "invisible killers" in aquaculture. If the content is too high, it is likely to cause heavy losses to aquaculture farmers

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