Method for adjusting and controlling algal facies and water quality of aquaculture pond in situ

A technology for aquaculture and ponds, applied in the direction of chemical instruments and methods, methods based on microorganisms, biochemical equipment and methods, etc., can solve the problems of slow growth of aquaculture objects, low aquaculture output, frequent occurrence of diseases, etc., and increase bacterial adhesion Space, easy promotion and application, and simple method

Inactive Publication Date: 2013-12-04
SUZHOU HAIYANG FISHERY SCI & TECH CO LTD
View PDF3 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of high-density aquaculture, due to the various fertilizers used in pond fertilizer and water, it is impossible to cultivate dominant algae such as diatoms, golden algae, and yellow algae that aquatic animals like to eat. At the same time, due to the diversification of pond algae competition, Harmful blue-green algae outbreaks may occur in some high-density aquaculture ponds, resulting in slow growth of aquaculture objects and low aquaculture output
At present, there is a method of pre-enlarging the dominance of algae in the aquaculture pond and then introducing it into the aquaculture pond for cultivation (patent number: ZL200810198309.0), but thi

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: Select powdered diatomite with good suspending ability, and the particle size is between 200-1000 meshes; select a compound microbial preparation for fishing, which mainly contains bacillus, photosynthetic bacteria, nitrosifying bacteria, and nitrifying bacteria , denitrifying bacteria, etc., the number of bacteria per milliliter is required to be more than 100 million;

[0021] When the basal fertilizer and water are applied in the Penaeus vannamei culture pond, the water body is colorless at this time, and the powdered diatomite is evenly sprinkled in the whole pond, and the amount of diatomite is 30 kg / mu; at the same time, the liquid compound microbial preparation is sprinkled in the whole pond, and the dosage is 3 liter / mu; at the same time, detect the dissolved oxygen in the pond water to make it not less than 5-6 mg / liter, otherwise it is necessary to open the aerator to increase oxygen;

[0022] After waiting for 15 to 20 days, the water color of t...

Embodiment 2

[0023] Embodiment 2: select powdered diatomite with good suspending property, particle size is between 200-1000 mesh; select the composite microbial preparation for fishery, the composite microbial preparation requires the number of bacteria per milliliter to be more than 100 million;

[0024] When the river crab breeding pond starts to apply basal fertilizer and fertilizer water, the water body is colorless at this time, and the whole pond is evenly sprinkled with powdery diatomite, and the amount of diatomite is 40 kg / mu; at the same time, the whole pond is sprinkled with liquid compound microbial preparation, and the amount is 5 liters / mu; At the same time, it is detected that the dissolved oxygen in the pond water is not less than 5-6 mg / L, otherwise the aerator needs to be turned on to increase oxygen; after waiting for 15 to 20 days, the water color of the river crab breeding pond appears light brown or yellowish brown, indicating that diatoms have become dominant algae ,...

Embodiment 3

[0025] Example 3: choose powdered diatomite with good suspending ability, and the particle size is between 200-1000 mesh; choose a composite microbial preparation for fishing, which is purchased from Shanghai Yinmai Biotechnology Co., Ltd., and mainly contains bacillus , photosynthetic bacteria, nitrosifying bacteria, nitrifying bacteria, denitrifying bacteria, etc., the number of bacteria per milliliter is required to be more than 100 million; when the perch breeding pond starts to apply basal fertilizer and water (at this time, the water body is colorless), the whole pond is evenly sprinkled with powder Diatomite, the amount of diatomite is 35 kg / mu; at the same time, the whole pond is splashed with liquid compound microbial preparation, the dosage is 4 liters / mu; the dissolved oxygen in the pond water should not be less than 5-6 mg / liter, otherwise it is necessary to open the aerator to increase oxygen;

[0026] After splashing diatomaceous earth and compound microbial prep...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for adjusting and controlling algal facies and water quality of an aquaculture pond in situ. The method comprises the following steps: a, kieselguhr powder with particle size of 200-1000 mesh is selected, and a compound microbial preparation is selected, wherein the bacterial population in 1 ml of the compound microbial preparation is greater than or equal to 100 million; b, when a base fertilizer and rich water are started to apply in the pond, the kieselguhr powder and the compound microbial preparation both obtained in step a are sprayed in the pond; c, after 15-20 days, the dissolved oxygen concentration and the ammonia concentration in the pond water are maintained at 5-9 mg/L and 0.1-0.4 mg/L respectively, the pond water is sandy beige, and the pond algal face is mainly alga of bacillariophyta observed through a microscope; d, offspring seeds of a to-be-cultivated target are put in the pond. Through the way, the method, disclosed by the invention, can improve the using effect of the microbial preparation commonly used in aquaculture, effectively adjusts and controls algal facies and water quality, reduces occurrences of diseases, and improves cultivation quality and quality of aquaculture products.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for in-situ regulation and control of algal phase and water quality in aquaculture ponds. Background technique [0002] Microalgae is the primary producer in the aquaculture pond and occupies an important position in the aquaculture pond. Microalgae increase the dissolved oxygen content in the aquaculture water through photosynthesis, and can absorb toxic substances such as ammonia nitrogen and nitrite nitrogen in the water body. It plays an important role in the normal function of the ecosystem of the culture pond, stabilizing the environment of the culture pond, and can also be used as a natural bait for shrimp seedlings. Therefore, pond culture needs to cultivate algae as part of the bait during the growth stage of the aquaculture target seedlings, and algae can help stabilize water quality. In the process of high-density aquaculture, due to the various fertilize...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C02F3/32C02F3/34A01K61/00C05F11/02C12N1/12C12N1/20C12R1/89C12R1/07C12R1/01
CPCY02A40/81
Inventor 鲍宝龙沈国雄邢巨斌
Owner SUZHOU HAIYANG FISHERY SCI & TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap