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Method for facilitating formation of microbial floccules in freshwater aquiculture pond

A freshwater aquaculture and biological floc technology, applied in fish farming, application, animal husbandry, etc., can solve the problems of low survival rate of farmed fish, poor pond water quality, excess nitrogen source, etc., to improve the survival rate and reduce diseases. The effect of occurrence and promotion of formation

Inactive Publication Date: 2012-06-13
HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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Problems solved by technology

[0004] The present invention aims to solve the problems of excessive nitrogen sources such as ammoniacal nitrogen and nitrite nitrogen, insufficient carbon sources, poor water quality in ponds, and low survival rate of cultured fish in freshwater aquaculture ponds, and provides a method for promoting the formation of biological flocs in freshwater aquaculture ponds. Methods

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  • Method for facilitating formation of microbial floccules in freshwater aquiculture pond
  • Method for facilitating formation of microbial floccules in freshwater aquiculture pond
  • Method for facilitating formation of microbial floccules in freshwater aquiculture pond

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specific Embodiment approach 1

[0008] Specific embodiment one: the method for this embodiment to promote the formation of biofloc in freshwater aquaculture ponds is carried out according to the following steps: one, calculate the amount of adding sugarcane molasses to freshwater aquaculture ponds each time according to the following formula: ΔCH=35×H×S ×C NH3-N ; where ΔCH is the amount of sugarcane molasses added in g, H is the depth of the pond water body in m, and S is the area of ​​the pond water body in m 2 , C NH3-N Be ammonia nitrogen content mg / L in the pond water body; Two, add the water in the freshwater aquaculture pond to dilute in the sugarcane molasses, the mass ratio of the water in the freshwater aquaculture pond and the sugarcane molasses is 9~11: 1, then dilute the The sugarcane molasses is evenly sprinkled in the whole pond, once every 1 to 2 weeks, and the method for promoting the formation of biofloc in freshwater aquaculture ponds is completed.

[0009] The sugarcane molasses describ...

specific Embodiment approach 2

[0010] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the mass ratio of water in the freshwater aquaculture pond to sugarcane molasses in step 2 is 9:1. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0011] Specific embodiment three: the difference between this embodiment and specific embodiment one is: the mass ratio of water in the freshwater aquaculture pond to sugarcane molasses in step two is 11:1. Others are the same as in the first embodiment.

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Abstract

The invention relates to a method for facilitating formation of microbial floccules in a freshwater aquiculture pond and aims at solving the problems that in the freshwater aquiculture pond, nitrogen sources of ammoniacal nitrogen, nitrous acid nitrogen and the like are excess, carbon sources are not enough, the pond water quality is poor and survival rate of cultured fishes is low. The method comprises the steps of calculating the quantity of cane molasses added into the freshwater aquiculture pond for each time according to general formula delta CH = 35*H*S*CNH3-N, wherein the delta CH represents the quantity of added cane molasses, the H represents the depth of a pond water body, the S represents the area of the pond water body, and the CNH3-N represents ammonia nitrogen content in the pond water body; adding the water in the freshwater aquiculture pond into the cane molasses to dilute the cane molasses and then splashing diluted cane molasses into the whole pond evenly, namely accomplishing the method for facilitating the formation of the microbial floccules in the freshwater aquiculture pond. By means of the method, forming quantity of the microbial floccules can be improved, non-pathogenic heterotrophicy bacteria can be stimulated to reproduce in a large scale, thereby restraining reproduction of pathogenic bacteria and improving the pond water quality.

Description

technical field [0001] The invention relates to a method for promoting the formation of biological flocs in freshwater aquaculture ponds. Background technique [0002] Biofloc is a type of organic group-like suspended matter mainly composed of bacteria, algae, protozoa, rotifers, abdominal hairs and other organic matter with organic matter as the carrier. Its core value is to convert nutrient waste such as residual bait, feces, and nitrogen source excretion in the breeding system into a source of nutrients that can be re-used by farmed animals, improve the utilization rate of nitrogen in feed by farmed animals, and reduce the eutrophication of farmed ponds. Improve pond water quality and reduce disease occurrence. On the basis of zero water change, artificially regulate the number of microorganisms in the culture pond to achieve the above purpose. [0003] Carbon sources are a class of nutrients necessary for microbial growth. The lack of carbon source in the pond will hi...

Claims

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Application Information

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IPC IPC(8): A01K63/04
Inventor 罗亮徐奇友赵志刚王常安许红尹家胜
Owner HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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