Method for killing copepods in rotaria culture

A technology of copepods and rotifers, which is applied in the field of bait biological cultivation, can solve problems such as killing, and achieve the effects of low cost, short drug residue period, and reduced labor intensity

Inactive Publication Date: 2007-07-04
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention needs to solve the

Method used

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Embodiment Construction

[0006] In this method, press 1 piece / m in the cement pool or resin tank 2 Evenly set the aerated stones, inject seawater and seawater chlorella according to the volume ratio of 3:1 to 4:1, the seawater salinity after mixing the seawater and seawater chlorella is 15-20‰ (g / kg), and accurately measure before medication Effective water body in the pool, according to 1.2 g / m 3 Dissolve the trichlorfon crystals at the concentration and evenly sprinkle them into the pool. The density of the rotifers is controlled at 1000-1500 / ml, and the temperature of the culture water is controlled at 25-30°C. After 24 hours of application, due to the copepods mixed in the The rotifers have been completely killed, and the harvest bags made of 250-mesh sieve silk with a diameter of 40 cm and a length of 2 meters can be released from the rotifer culture pool to collect rotifers;

[0007] During the process of rotifer treatment, keep inflating all the time, and the amount of air inflation should be ...

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Abstract

A method to killing copepod in Rotifer culture relates to bait applicator culture aimed at solving the problem of killing copepod in Rotifer culture. The technology program of the invention includes: equipping inflatable stone in the pool, injecting seawater and seawater Chlorella, it is characterized by equipping inflatable stone in the pool by one/ m2, injecting seawater and seawater Chlorella by3:1 to 4:1, the salinity of mixed seawater is 15-20%., the rotifer asylum density is 1000-1500/ml, the water temperature is 25-30degreeC, pouring the anthon solution into the pool by the density of 1.2g/m3, collecting the rotifer using the 250 mesh sieve silk bags after 24 hours and maintaining inflatable in the rotifer process. The invention applies to the bait applicator culture of fish, shrimp, crab seed.

Description

Technical field: [0001] The present invention relates to bait organism cultivation. Background technique [0002] Rotifers have the advantages of small size, slow swimming speed, and easy predation. They are ideal opening baits for fish, shrimp, and crab seedlings. The time required to feed the seedlings to rotifers varies depending on the species, generally 5-15 days after the opening. If the copepods mixed in the rotifers are not removed at this stage, they will enter the seedling pond together with the rotifers. The mobility of copepods is stronger than that of rotifers. Copepods compete with seedlings for bait and space in seedling ponds, but seedlings cannot prey on copepods in the initial stage of seedling cultivation. Some carnivorous copepods even Feeds on nauplii and rotifers of small crustaceans in nursery waters. During the production process of Scylla serrata seedlings, if the rotifers that have not completely removed the copepods are fed to the crab seedlings,...

Claims

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Application Information

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IPC IPC(8): A01K61/00A01M25/00A01M19/00
CPCY02A40/81
Inventor 王建钢乔振国于忠利
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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