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Artificial breeding method for cherax quadricarinatus in pond greenhouse

A red-clawed crayfish, artificial breeding technology, applied in animal husbandry, application, climate change adaptation, etc., can solve the problems of breeding bacteria, polluting water bodies, affecting the yield of shrimp seedlings, etc., achieving good hydrophilicity and improving efficiency Effect

Pending Publication Date: 2022-03-11
舒城县汇德水产科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing red-clawed crayfish breeding process, the water needs to be changed frequently during broodstock breeding, otherwise the excretion waste of the shrimp body and the uneaten feed will pollute the water body, breed bacteria, and cause a large number of red-clawed crayfish to die in severe cases, and The oxygen content of the water body is low, and it is necessary to use the aerator to increase oxygen, but turning off the aerator will not improve the oxygen content in the water, making the growth environment of the shrimp body harsh, and the aerator will generate noise, which will affect the broodstock shrimp mating, which in turn affects the yield of shrimp seedlings. Therefore, the present invention improves the efficiency of artificial breeding of red crayfish from the aspects of improving the water quality of red crayfish culture and increasing the oxygen content of water body.

Method used

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  • Artificial breeding method for cherax quadricarinatus in pond greenhouse
  • Artificial breeding method for cherax quadricarinatus in pond greenhouse
  • Artificial breeding method for cherax quadricarinatus in pond greenhouse

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Purification packing is made by the following steps:

[0045] Step 1. Mix 10mmol (2-methylphenoxy)acetic acid, 12mmol o-phenylenediamine and 35.8mL HCl solution evenly, reflux at 110°C for 8h, transfer to ice water after the reaction, and use 30% NaOH The pH value of the solution was adjusted to 8, solids were precipitated, filtered by suction, and the filter cake was recrystallized to obtain intermediate 1;

[0046] Step 2. After mixing 5 mmol of intermediate 1, 5 mmol of methyl chloroacetate and 86 mL of deionized water, reflux at 110°C for 12 hours. After the reaction, wash with deionized water, extract with ethyl acetate, and distill under reduced pressure. Obtain benzimidazole compound;

[0047] Step 3. Add 0.1 mol of benzimidazole compound, 0.1 mol of dimethylaminoethanolamine, 42.5 mL of DMF and 0.02 mol of tetrabutyl titanate into a three-necked flask, and raise the temperature to 100°C for 6 hours under magnetic stirring, and then, After filtering, the filtra...

Embodiment 2

[0053] Purification packing is made by the following steps:

[0054] Step 1. Mix 10mmol (2-methylphenoxy)acetic acid, 12mmol o-phenylenediamine and 41.2mL HCl solution evenly, reflux at 110°C for 8h, transfer to ice water after the reaction, and use 30% NaOH The pH value of the solution was adjusted to 10, solids were precipitated, filtered with suction, and the filter cake was recrystallized to obtain intermediate 1;

[0055] Step 2. After mixing 5 mmol of intermediate 1, 5 mmol of methyl chloroacetate and 90 mL of deionized water, reflux at 110°C for 12 hours. After the reaction, wash with deionized water, extract with ethyl acetate, and distill under reduced pressure. Obtain benzimidazole compound;

[0056] Step 3. Add 0.1 mol of benzimidazole compound, 0.1 mol of dimethylaminoethanolamine, 45.7 mL of DMF and 0.02 mol of tetrabutyl titanate into a three-necked flask, and raise the temperature to 110°C for 6 hours under magnetic stirring, and then, After filtering, the fil...

Embodiment 3

[0076] Oxygen release agents are made by the following steps:

[0077] Step S1, add 2g of sodium humate, 100mL of deionized water and 0.8g of polyvinyl alcohol into the reaction kettle, raise the temperature to 95°C, and stir for 4h at a rotation speed of 100r / min to obtain a coating solution;

[0078] Step S2, CaO 2 and zeolite were uniformly mixed to obtain mixed granules, 1.5 g of mixed granules were added into 3.6 g of coating solution, stirred and mixed, and then spray-dried to obtain an oxygen-releasing agent.

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Abstract

The invention relates to an artificial breeding method for cherax quadricarinatus in a pond and a greenhouse, and belongs to the technical field of aquaculture, and the method comprises the following steps: preparing a culture pond, disinfecting the culture pond and feeding water, selecting and feeding parent shrimps into the pond, feeding the parent shrimps, inducing spawning, managing incubation, and marking young shrimps. Purification filler and an oxygen release agent are added in the parent shrimp feeding process, purification particles are added into a culture pond, metal ions and organic pollutants in the culture pond can be adsorbed, bacteria in the culture pond can be killed, and it is guaranteed that the growth environment of parent shrimps is safe and comfortable; the oxygen release agent is prepared by taking CaO2 as a raw material, sodium humate and polyvinyl alcohol as a coating agent, CaO2 can be slowly decomposed to release oxygen through coating, the CaO2 and the purification filler can synergistically play a purification and adsorption role, the safety and comfort of the growth environment of parent shrimps are jointly guaranteed, and the artificial breeding efficiency of cherax quadricarinatus is improved.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to an artificial breeding method for red crayfish in a pond greenhouse. Background technique [0002] Red-clawed crayfish (Cherax quadricariratus), also known as Australian freshwater lobster, is native to Australia and other regions. , high meat yield and other characteristics, it is one of the world's rare and economical shrimps. In recent years, with the decline in the benefits of shrimp farming, the market demand for crayfish and other crayfish has increased sharply, and the industrial scale of red crayfish has also been rapidly expanded. It is expected to become another emerging industry after Macrobrachium rosenbergii and crayfish. large-scale farming species. [0003] In the existing red-clawed crayfish breeding process, the water needs to be changed frequently during broodstock breeding, otherwise the excretion waste of the shrimp body and the uneaten feed ...

Claims

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Application Information

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IPC IPC(8): A01K61/59A01K63/04C08B37/08
CPCA01K61/59A01K63/042C08B37/003Y02A40/81
Inventor 汤德根霍道安汤德银潘忠斌吕贞
Owner 舒城县汇德水产科技有限公司
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