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A rotifer high-density culture method

A high-density culture and rotifer technology, applied in animal husbandry, etc., can solve the problems of inactivity, no eggs, and poor control of bait delivery, etc., and achieve reasonable and practical design, robust individuals, and improve production efficiency and economic benefits. Effect

Inactive Publication Date: 2015-10-14
DONGYING DIAZEN BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the current method of cultivating rotifers has many dead shells of rotifers, dirt attached to the body, sinking to the bottom, inactivity, no eggs, winter eggs or male bodies appearing and other poor growth performances, mainly due to water quality and temperature and Caused by poor control of bait delivery

Method used

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Examples

Experimental program
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Embodiment

[0043] Example: the water volume is 1500 L, the water temperature is 33-34°C, the bait is 50% concentrated chlorella, the cultivation time is 24 hours, the oxygen supply is liquid oxygen, and the organic matter is removed by air foaming and hanging net filtration; seedlings are cast at 3000 / ml , or 4.5 billion pieces / tank, or 7.425 kg (specific gravity: 165g / 100,000,000 pieces), the harvesting density is 10,000 pieces / ml, or 15 billion / cylinder, or 24.75 kg, the net output is 17.325 kg, the bait consumption is 30 kg, and the bait coefficient 1: 1.73.

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Abstract

The present invention provides a rotifer high-density culture method including a technical scheme: seawater chlorella pyrenoidosa is used to feed rotifers with a seawater chlorella pyrenoidosa liquid concentration thrown into water body, namely a precipitation rate, of 20%-25%, a culture water body of 1500 L, a pH value controlled at 6.5-8, a dissolved oxygen concentration controlled at 3-25 mg / L, a water temperature controlled at 20-36 DEG C, and a salinity controlled at 19-30%. The control method of throwing the seawater chlorella pyrenoidosa into the water body is that intestine and stomach changes of the seawater chlorella pyrenoidosa are observed under a microscope in order to determine the application amount of the seawater chlorella pyrenoidosa. The PH value is adjusted with sodium bicarbonate or acetic acid, medium warming is performed in a circulating water way. Excretion of rotifers and residual baits are removed with hanging cloth. The culture method is reasonable and practical in design and time-saving and labor-saving. The cultured rotifer individuals are healthy and strong; and the culture method improves production efficiency and economic benefits of enterprises, and is suitable for general promotion and use.

Description

Technical field: [0001] The invention relates to the technical field of rotifer cultivation, in particular to a high-density cultivation method of rotifers. Background technique: [0002] Rotifers are a group of small multicellular animals belonging to the phylum of rotifers, with a general body length of 0.1-0.5mm. Rotifers are the most palatable active bait for fry, shrimp and crabs, so they have considerable application value in aquaculture. However, the current method of cultivating rotifers has many dead shells of rotifers, dirt attached to the body, sinking to the bottom, inactivity, no eggs, winter eggs or male bodies appearing and other poor growth performances, mainly due to water quality and temperature and It is caused by poor control of bait delivery. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present invention provides a high-density culture method for rotifers, the technical solution of which is: feed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/033
Inventor 董乃畅王富强任从温
Owner DONGYING DIAZEN BIOTECH CO LTD
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