Breeding method capable of improving survival rate of red swamp crayfishes

The technology of a freshwater crayfish and a cultivation method is applied in the cultivation field of improving the survival rate of the freshwater crayfish, and can solve the problems such as the inability to effectively increase the output of the crayfish, the high mortality rate of the crayfish, the reduction of economic benefits, etc. Immunity and the effect of improving economic efficiency

Inactive Publication Date: 2018-12-04
安徽涂远农业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The nutrition of crayfish is well known. At present, crayfish farming is developing rapidly in our country, and during the growth process of crayfish, the feed that is not eaten in time pollutes the water body environment, resulting in a high mortality rate of crayfish, and the production of crayfish cannot be effectively obtained. improve, while reducing economic efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A culture method for improving the survival rate of freshwater crayfish, comprising the steps of:

[0025] S1. Carry out dredging, rinsing, sun exposure and disinfection treatment of the breeding pond, and then apply compound fertilizer to the water body for water cultivation. The temperature of the water body is 24-26°C, and the pH value of the water body is 7.5-8;

[0026] S2. Plant algae until the algae coverage area is 70% of the entire culture pond area;

[0027] S3. Put the crayfish seedlings into the water body, and the amount of crayfish put in is 114,000 / 667m 2 ;

[0028] S4. Add special feed for crayfish. The daily dosage is 55% of the body weight of the crayfish. During the breeding process, the oxygen content of the aquaculture water is maintained at 5.2-5.8mg / L, and the water is changed every 2-4 days until the crayfish is caught.

[0029] The raw materials of the special feed for crayfish include: fly maggot protein powder 38kg, rice bran meal 40kg, ferm...

Embodiment 2

[0032] A culture method for improving the survival rate of freshwater crayfish, comprising the steps of:

[0033] S1. Carry out dredging, rinsing, sun exposure and disinfection treatment of the breeding pond, and then apply compound fertilizer to the water body for water cultivation. The temperature of the water body is 24-26°C, and the pH value of the water body is 7.5-8;

[0034] S2. Plant algae until the algae coverage area is 75% of the entire culture pond area;

[0035] S3. Put the crayfish seedlings into the water body, and the amount of crayfish put in is 100,000 / 667m 2 ;

[0036] S4. Add special feed for crayfish. The daily dosage is 59% of the body weight of the crayfish. During the breeding process, the oxygen content of the aquaculture water is maintained at 5.2-5.8mg / L, and the water is changed every 2-4 days until the crayfish is caught.

[0037] The raw materials of the special feed for crayfish include: fly maggot protein powder 32kg, rice bran meal 56kg, ferm...

Embodiment 3

[0040] A culture method for improving the survival rate of freshwater crayfish, comprising the steps of:

[0041] S1. Carry out dredging, rinsing, sun exposure and disinfection treatment of the breeding pond, and then apply compound fertilizer to the water body for water cultivation. The temperature of the water body is 24-26°C, and the pH value of the water body is 7.5-8;

[0042] S2. Plant algae until the algae coverage area is 72% of the entire culture pond area;

[0043] S3. Put the crayfish seedlings into the water body, and the amount of crayfish put in is 110,000 / 667m 2 ;

[0044] S4. Put crayfish special feed, the daily dosage is 56% of the crayfish body weight, maintain the oxygen content of the aquaculture water at 5.3-5.7mg / L during the breeding process, and change the water every 2-4 days until the crayfish are caught.

[0045] The raw materials of the special feed for crayfish include: fly maggot protein powder 36kg, rice bran meal 45kg, fermented biological pro...

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PUM

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Abstract

The invention discloses a breeding method capable of improving a survival rate of red swamp crayfishes. The method comprises the following steps: performing desilting on a breeding pond, performing washing, performing exposure under the sun, performing disinfection treatment, and adding a compound fertilizer into a water body for water cultivation; planting algae; throwing young red swamp crayfishes into the water body; and throwing feed specially used for the red swamp crayfishes, and changing water once every 2-4 days until the red swamp crayfishes are caught, wherein the feed specially usedfor the red swamp crayfishes comprises the following raw materials in parts by weight: 32-38 parts of fly maggot protein powder, 40-56 parts of rice bran meal, 3-12 parts of fermented biological protein, 6-10 parts of peanut meal, 2-9 parts of soybean meal, 1-5 parts of shell powder, 2-7 parts of radish leaves, 3-11 parts of broussonetia papyrifera leaf powder, 0.1-0.2 part of calcium hydrogen phosphate, 0.01-0.02 part of an enzyme preparation, 0.1-0.3 part of choline chloride, 0.1-0.18 part of allicin, 1-2 parts of a feed attractant, 1-2 parts of montmorillonite, and 2-4 parts of tackifyingcyclodextrin.

Description

technical field [0001] The invention relates to the technical field of crayfish cultivation, in particular to a cultivation method for improving the survival rate of freshwater crayfish. Background technique [0002] Freshwater crayfish is delicious and nutritious. It is a high-protein, low-fat and high-energy, nutritious health food. It is a worldwide edible shrimp and has become an important food source for European people in the 18th century. The nutrition of crayfish is well known. At present, crayfish aquaculture is developing rapidly in my country. During the growth process of crayfish, the feed that is not eaten in time pollutes the water environment, resulting in a high mortality rate of crayfish, resulting in the ineffectiveness of crayfish production. increase while reducing economic efficiency. SUMMARY OF THE INVENTION [0003] Based on the technical problems existing in the background technology, the present invention proposes a culture method for improving the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A23K50/80A23K20/147A23K10/37A23K10/12A23K10/30A23K10/26A23K20/189A23K20/105A23K20/28A23K20/163
CPCA01K61/59A23K10/12A23K10/26A23K10/30A23K10/37A23K20/105A23K20/147A23K20/163A23K20/189A23K20/28A23K50/80Y02A40/81Y02A40/818Y02P60/87
Inventor 赵其瑞
Owner 安徽涂远农业有限公司
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