Method for rapidly determining inflation of seawater fry swimming bladders

A fry fish and seawater technology, applied in the field of fishery, can solve the problems of high breeding cost, affecting production cost, slow growth of fry, etc., and achieve the effects of improving seedling quality, reducing production cost, and improving production efficiency

Inactive Publication Date: 2015-02-11
TARIM UNIV
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

In the indoor factory breeding of seawater fish, the phenomenon of uninflated swim bladder is common. Whether the fish swim bladder is inflated will not only affect the quality of seawater fry but also affect the production cost.
Experiments have proved that fish fry with uninflated swim bladders grow slowly, have a long growth cycle, low survival rate, and high breeding costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Below in conjunction with specific embodiment the technical scheme of the present invention is described in further detail

[0011] Statistical method: After the fry were anesthetized after adding the anesthetic, 50 larvae were taken from the surface, middle, and bottom of the water body for inspection under a dissecting microscope to count whether the swim bladder was inflated. In view of the limitations of the previous contract, the names of the species of fish used in the experiment are omitted here, and they are collectively referred to as larvae. When it comes to specific places and times, they are replaced by "xxx". In addition, due to the large differences in individual development among species, the dosage of anesthetics and the time of anesthesia should be specifically considered. Only the detection method is given here. For the specific dosage of a specific species, the trial range depends on the size of the individual in its developmental stage.

[0012] Tes...

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PUM

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Abstract

The invention discloses a method for rapidly determining inflation of seawater fry swimming bladders. 10-25days after fries hatch, 12-18mg / L of anesthetic Aqui-S is adopted; detecting density is 100 fries in 100 ml of water, and anesthesia time is 5-8 minutes generally; when the fries are in the state of being unable to swim, swinging bladders of the fries floating on the water surface are inflated fully, the swinging bladders of the fries staying in water are partially inflated, and the swinging bladders of the fires sinking at the bottom of the water are not inflated. The method is simple and capable of rapidly determining whether the fry swimming bladders are fully developed or not and inflate or not, and is adaptable to promotion and application.

Description

technical field [0001] The invention belongs to the technical field of fishery, and relates to a method for quickly judging whether the swim bladder of seawater fry is inflated. Background technique [0002] There is gas in the swim bladder, and the gas components are oxygen and nitrogen. The deep sea is larger than the shallow sea and is larger than the fresh water. The swim bladder of the fish uses the swim bladder tube and red gland to deflate, and the swim bladder tube exhausts, while the closed swim bladder uses the red gland to deflate. The round window inhales air; the swim bladder has the function of adjusting the specific gravity. In the indoor factory breeding of seawater fish, the phenomenon that the swim bladder is not inflated is common. Whether the swim bladder of fry is inflated will not only affect the quality of seawater fry but also affect the production cost. Experiments have shown that fish fry whose swim bladders are not inflated grow slowly, have a lon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 聂竹兰魏杰马振华
Owner TARIM UNIV
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