Cultivation method of langoustine seedlings

A method for cultivating langoustine and a technology for langoustine, which are applied in the field of cultivating langoustine seed, can solve the problem of asynchrony in male and female development of langoustine, no indoor langoustine breeding of langoustine, and limiting the success rate of artificial breeding, etc. question

Active Publication Date: 2020-08-04
DALIAN OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under natural conditions, male shrimps tend to reach sexual maturity and mate with immature female shrimps in October to November every year, and the mated female shrimps mature and lay eggs in April of the following year, that is, the male and female shrimps are not synchronized in development. Thus limiting the success rate of artificial breeding
So far, there are no relevant reports on langoustine farming and indoor langoustine seed breeding

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Follow the steps below:

[0021] a. Broodstock shrimp to promote ripening

[0022] Select 2 male and female crayfish that are robust, disease-free, and with a large weight (above 200 grams) from the market as broodstock, and temporarily raise the male and female crayfish broodstock respectively in cement pools or glass fiber reinforced plastic tanks and put them into attachment substrates. Breeding density is 1~2 / m 3 , the breeding water temperature is 12~13°C, the salinity is 20~22, and the dissolved oxygen is at least 5mg / L. Shading facilities can be built on the top of the pool (trough), so that the light intensity is 100~300lx, and the daily water change is 20~40%. When watering, suck out the feces and residual bait at the bottom of the pool, and regularly clean and disinfect the pool;

[0023] Feed minced meat every day, and the amount of feeding is 2-5% of the body weight of broodstock. The raw materials and quality ratio of the minced meat are as follows: clamw...

Embodiment 2

[0035] Follow the steps below:

[0036] a. Broodstock shrimp to promote ripening

[0037] Select 5 male and female crayfish that are robust, disease-free, and with a large weight (above 200 grams) from the market as broodstock, and temporarily raise the male and female crayfish broodstock respectively in cement pools or glass fiber reinforced plastic tanks and put them into attachment substrates. Breeding density is 1~2 / m 3 , the breeding water temperature is 17~18℃, the salinity is 30~32, and the dissolved oxygen is at least 5mg / L. Shading facilities can be set up on the top of the pool (trough), so that the light intensity is 700~1000lx, and the daily water change is 80~100%. When watering, suck out the feces and residual bait at the bottom of the pool, and regularly clean and disinfect the pool;

[0038] Feed minced meat every day, and the amount of feeding is 10-15% of the body weight of broodstock. The raw materials and quality ratio of the minced meat are as follows: c...

Embodiment 3

[0050] Follow the steps below:

[0051] a. Broodstock shrimp to promote ripening

[0052] Select 10 male and female crayfish that are robust, disease-free, and with a large weight (above 200 grams) from the market as broodstock, and temporarily raise the male and female crayfish broodstock respectively in cement pools or glass fiber reinforced plastic tanks and put them into attachment substrates. Breeding density is 1~2 / m 3 , the breeding water temperature is 15~16°C, the salinity is 25~26, and the dissolved oxygen is at least 5mg / L. Shading facilities can be built on the top of the pool (trough), so that the light intensity is 500~700lx, and the daily water change is 40%~60%. When changing the water, suck out the feces and residual bait at the bottom of the pool, and regularly clean and disinfect the pool;

[0053] Feed minced meat every day, and the feeding amount is 10% to 12% of the body weight of broodstock. The raw materials and quality ratios of the minced meat are a...

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PUM

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Abstract

The invention discloses a cultivation method of Homarus seeds. The method is characterized in that when the gonad index of male Homarus parents reaches 5-20%, zinc sulfate, monocalcium phosphate and vitamin C are added to female Homarus parents and the temperature is risen 1-3 DEG C each day to accelerate the gonad maturity of the female Homarus parents so as to allow the female Homarus parents to molt, the molted female Homarus parents and the male Homarus parents are cultivated in a mixed manner, the spermatophores of the male Homarus parents can be easily inserted into the molted female Homarus parents, and mating rate is increased greatly; the mated female Homarus parents are cultivated independently, cultivation conditions such as spawning and hatching and larva cultivation are controlled until the Homarus seeds are obtained, and fully-artificial Homarus seed cultivation is achieved successfully.

Description

technical field [0001] The invention relates to a seed cultivation method, in particular to a sea langoustine seed cultivation method. Background technique [0002] Langoustine is deeply loved by consumers because of its high meat yield, delicious taste and rich nutrition. At present, the langoustine on the market is mainly caught from the coast of North America, and then airlifted to all over the world, such as North American crayfish, European crayfish, Norway crayfish and so on. With the increasing catch of langoustine year by year, the amount of wild resources has decreased sharply, which not only poses a serious threat to the sustainable development of fishery resources, but also the price of langoustine is increasing day by day, and the contradiction between supply and demand tends to be sharp. Under natural conditions, male shrimps tend to reach sexual maturity and mate with immature female shrimps in October to November every year, and the mated female shrimps matur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/59A23K10/20A23K10/22A23K20/174A23K20/20A23K20/26A23K50/80
CPCA01K61/59A23K10/20A23K10/22A23K20/174A23K20/20A23K20/26A23K20/30A23K50/80Y02A40/81Y02A40/818
Inventor 常亚青左然涛乔雁冰
Owner DALIAN OCEAN UNIV
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