CN105325335A

CN105325335A - Method for artificially hatching chrtax quadricarinatus eggs

Info

Publication number: CN105325335A
Application number: CN201510722426.2A
Authority: CN
Inventors: 蒋敏
Original assignee: Yingshang Runhai Livestock And Poultry Feeding Co Ltd
Current assignee: Yingshang Runhai Livestock And Poultry Feeding Co Ltd
Priority date: 2015-10-31
Filing date: 2015-10-31
Publication date: 2016-02-17

Abstract

The invention relates to the technical field of aquaculture, in particular to a method for artificially hatching chrtax quadricarinatus eggs. The method comprises the steps of collecting fertilized eggs laid by female chrtax quadricarinatus after spawning by mating of the female chrtax quadricarinatus; enabling a hatching solution to fill a hatching pond, and moving the fertilized eggs into the hatching pond; irradiating the fertilized eggs by He-Ne laser during a hatching process; moving the fertilized eggs into a cultivating pond for being continuously cultivated for one week after the fertilized eggs are hatched out from membranes, wherein the cultivating temperature is 24 to 26 DEG C, the cultivating density is 50 to 60 fertilized eggs per square meter, dissolved oxygen in the cultivating pond is kept to be 11 to 15 mg/L; irradiating the fertilized eggs for 10 to 12 hours every day by using a fluorescent lamp of which the illumination intensity is 2000 to 2100 lx during a cultivating process; during a cultivating period, mixing and twisting fish meal, fairy shrimp meal, symphyocladia latiuscula, coralline algae, seaweed meal, rotatoria, egg yellow and glutinous rice flour into particles of which the particle diameter is smaller than 1mm by adding water according to a weight ratio of 2 to 5 to 3:5 to 10 to 1 to 1 to 1.5, and applying and spreading the particles into the cultivating pond for twice a day and 10 to 20 g per square meter for once.

Description

A kind of red claw crayfish shrimp ovum artificial incubation method

Technical field

The present invention relates to technical field of aquaculture, be specifically related to a kind of red claw crayfish shrimp ovum artificial incubation method.

Background technology

Red claw crayfish has another name called " Australia freshwater lobster ", originate in Australia, exactly liking marine lobster, is one of the famousst and precious economic freshwater shrimp species in the world, this shrimp body colour breen, the outer tip end of chela has the scarlet band of a film quality, beautiful good-looking, therefore be described as red claw crayfish again, its individuality of red yabby is general at 50-100 gram, indivedual the maximum reaches 500 ~ 600 grams, is the Freshwater shrimps that a kind of adaptability is stronger.Because feeding habits are very wide, growth is fast, fine and tender taste, delicious flavour, nutritious, the welcome on market is subject in European, Japanese and China, late April parent shrimp starts mate and oviposit, before mating, female shrimp will carry out reproduction shell, and in 12 hours of male shrimp output sperm, female shrimp starts to lay eggs, and is buff after the feritilization of ovum of female shrimp output, stick in empty stomach that abdominal foot and tail fan inwardly curl into, because female shrimp abdominal space is limited, oogenesis quantity is also limited, and will depart from parent completely through 40 days ability in natural world fertilized egg.

Summary of the invention

In order to solve red claw crayfish oogenesis nursery in prior art, to there is the cycle long, hatches survival rate larger shortcoming affected by environment, the invention provides a kind of red claw crayfish shrimp ovum artificial incubation method.

The technical solution used in the present invention is, a kind of red claw crayfish shrimp ovum artificial incubation method, and its incubation step is as follows:

After female shrimp mate and oviposit, collect the fertilized egg that female shrimp is discharged;

Artemia hatching solution is passed in hatchery, fertilized egg is moved to hatchery, hatching density is 100-150 grain/ml, in hatchery, dissolved oxygen remains on 8-10mg/L, incubation temperature remains on 30 DEG C, and artemia hatching solution is mixed by the weight ratio of 100:5:0.2:0.5:5:2:0.1:7 by water, protein hydrolysate, alpha-linolenic acid, B B-complex, glucose, calcium gluconae, zinc sulphate, sodium alginate;

In hatching process, use he-ne laser irradiation fertilized egg, operation wavelength is 632.8nm, and laser output power is 6mW;

After incubating oosperm membrane, fertilized egg is moved to and brings up pond continuous culture 1 week, raising temperature is 24-26 DEG C, bringing up density is 50-60/square metre, bring up pond dissolved oxygen and remain on 11-15mg/L, in raising process every day intensity of illumination be 2000-2100lx fluorescent lamp irradiate 10-12 hour, during raising, by fish meal, fairy shrimp powder, drake feather algae, coralline algae, seaweed meal, wheel animalcule, yolk, glutinous rice flour kneads into by the weight ratio mixing and water adding of 2:5:3:5:10:1:1:1.5 the graininess that particle diameter is below 1mm, execute and spill in culturing pool, execute every day and spill 2 times, execute at every turn and spill 10-20g/ square metre.

The present invention adopts artificial incubation shrimp ovum, for fertilized egg provides unified environment of hatching, improve shrimp incubation rate and hatching survival rate, hatching survival rate can reach 99.82%, artificial incubation simultaneously also shortens the incubation cycle of shrimp ovum, management is easy between the incubation period, incubation of membrane was got final product through 16-18 days after fertilized egg moves to hatchery, increasing body in hatching process the young average day long is 0.53mm/d, it is 0.41mg/d that weight average day increases weight, can put independent existence after cultivating 1 week after incubation of membrane in raising pond.

Embodiment

After embodiment 1, female shrimp mate and oviposit, collect the fertilized egg that female shrimp is discharged;

Artemia hatching solution is passed in hatchery, fertilized egg is moved to hatchery, hatching density is 100/ml, in hatchery, dissolved oxygen remains on 8mg/L, incubation temperature remains on 30 DEG C, and artemia hatching solution is mixed by the weight ratio of 100:5:0.2:0.5:5:2:0.1:7 by water, protein hydrolysate, alpha-linolenic acid, B B-complex, glucose, calcium gluconae, zinc sulphate, sodium alginate;

After incubating oosperm membrane, fertilized egg is moved to and brings up pond continuous culture 1 week, bringing up temperature is 24 DEG C, bringing up density is 50/square metre, bring up pond dissolved oxygen and remain on 11mg/L, in raising process, intensity of illumination is that the fluorescent lamp of 2000lx irradiates 10 hours every day, during raising, by fish meal, fairy shrimp powder, drake feather algae, coralline algae, seaweed meal, wheel animalcule, yolk, glutinous rice flour kneads into by the weight ratio mixing and water adding of 2:5:3:5:10:1:1:1.5 the graininess that particle diameter is below 1mm, execute and spill in culturing pool, execute every day and spill 2 times, execute at every turn and spill 10g/ square metre.

After embodiment 2, female shrimp mate and oviposit, collect the fertilized egg that female shrimp is discharged;

Artemia hatching solution is passed in hatchery, fertilized egg is moved to hatchery, hatching density is 150/ml, in hatchery, dissolved oxygen remains on 10mg/L, incubation temperature remains on 30 DEG C, and artemia hatching solution is mixed by the weight ratio of 100:5:0.2:0.5:5:2:0.1:7 by water, protein hydrolysate, alpha-linolenic acid, B B-complex, glucose, calcium gluconae, zinc sulphate, sodium alginate;

After incubating oosperm membrane, fertilized egg is moved to and brings up pond continuous culture 1 week, bringing up temperature is 26 DEG C, bringing up density is 60/square metre, bring up pond dissolved oxygen and remain on 15mg/L, in raising process, intensity of illumination is that the fluorescent lamp of 2100lx irradiates 12 hours every day, during raising, by fish meal, fairy shrimp powder, drake feather algae, coralline algae, seaweed meal, wheel animalcule, yolk, glutinous rice flour kneads into by the weight ratio mixing and water adding of 2:5:3:5:10:1:1:1.5 the graininess that particle diameter is below 1mm, execute and spill in culturing pool, execute every day and spill 2 times, execute at every turn and spill 20g/ square metre.

After embodiment 3, female shrimp mate and oviposit, collect the fertilized egg that female shrimp is discharged;

Artemia hatching solution is passed in hatchery, fertilized egg is moved to hatchery, hatching density is 120/ml, in hatchery, dissolved oxygen remains on 9mg/L, incubation temperature remains on 30 DEG C, and artemia hatching solution is mixed by the weight ratio of 100:5:0.2:0.5:5:2:0.1:7 by water, protein hydrolysate, alpha-linolenic acid, B B-complex, glucose, calcium gluconae, zinc sulphate, sodium alginate;

After incubating oosperm membrane, fertilized egg is moved to and brings up pond continuous culture 1 week, bringing up temperature is 25 DEG C, bringing up density is 55/square metre, bring up pond dissolved oxygen and remain on 13mg/L, in raising process, intensity of illumination is that the fluorescent lamp of 2080lx irradiates 11 hours every day, during raising, by fish meal, fairy shrimp powder, drake feather algae, coralline algae, seaweed meal, wheel animalcule, yolk, glutinous rice flour kneads into by the weight ratio mixing and water adding of 2:5:3:5:10:1:1:1.5 the graininess that particle diameter is below 1mm, execute and spill in culturing pool, execute every day and spill 2 times, execute at every turn and spill 12g/ square metre.

Claims

1. a red claw crayfish shrimp ovum artificial incubation method, is characterized in that, its incubation step is as follows:

After a, female shrimp mate and oviposit, collect the fertilized egg that female shrimp is discharged;

B, artemia hatching solution is passed in hatchery, fertilized egg is moved to hatchery, hatching density is 100-150 grain/ml, in hatchery, dissolved oxygen remains on 8-10mg/L, incubation temperature remains on 30 DEG C, and artemia hatching solution is mixed by the weight ratio of 100:5:0.2:0.5:5:2:0.1:7 by water, protein hydrolysate, alpha-linolenic acid, B B-complex, glucose, calcium gluconae, zinc sulphate, sodium alginate;

C, in hatching process, use he-ne laser irradiation fertilized egg, operation wavelength is 632.8nm, and laser output power is 6mW;

D, after incubating oosperm membrane, fertilized egg is moved to and brings up pond continuous culture 1 week, raising temperature is 24-26 DEG C, bringing up density is 50-60/square metre, bring up pond dissolved oxygen and remain on 11-15mg/L, in raising process every day intensity of illumination be 2000-2100lx fluorescent lamp irradiate 10-12 hour, during raising, by fish meal, fairy shrimp powder, drake feather algae, coralline algae, seaweed meal, wheel animalcule, yolk, glutinous rice flour kneads into by the weight ratio mixing and water adding of 2:5:3:5:10:1:1:1.5 the graininess that particle diameter is below 1mm, execute and spill in culturing pool, execute every day and spill 2 times, execute at every turn and spill 10-20g/ square metre.