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A kind of parthenoculture method that improves squid growth rate

A breeding method and technology for squid, which are applied in fish farming, application, climate change adaptation, etc., can solve the problems of indistinguishable appearance of male and female squid, the impact of squid breeding, breeding and conservation, and the difficulty in realizing the separation of males and females in batches, etc. Achieve the effect of improving survival rate and use safety, reducing mate competition, and increasing yield per unit area

Active Publication Date: 2020-03-24
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sometimes the mortality rate can reach 10-20% overnight, which has a disastrous impact on squid breeding and breeding and conservation
Parthenoculture is a good way to solve this problem. Since there are no mate competition and fighting problems in the process of parthenoculture, it can greatly improve the survival rate of squid breeding at sexual maturity. It is difficult to distinguish between male and female in batches, and in the process of live separation of male and female, squid will suffer from stress inkjet and die in large numbers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A parthenoculture method for improving squid growth rate, comprising sorting timing, squid anesthesia, sorting method, squid recovery, parthenoculture, specifically comprising the following steps:

[0016] 1) Sorting timing: cuttlefish at the early stage of selective gland development;

[0017] 2) Squid anesthesia: Soak the squid in seawater containing 1% ethanol, 18g / L magnesium chloride and 3mg / L isoeugenol for 100s to deeply anesthetize the squid;

[0018] 3) Sorting method: Take out the anesthetized squid, gently open the abdominal mantle cavity of the squid, the ovary and testis are located at the back end of the mantle cavity, insert an electro-optic curette or a self-made similar tip-emitting probe into the mantle from the abdomen, and see reddish-brown The ovary glands are female, and the milky white seminal vesicles are male;

[0019] 4) Squid recovery: Rinse the sorted squid with clean water first, then soak in seawater containing 1ug / L modafinil and 0.4ug / L ...

Embodiment 2

[0022] A parthenoculture method for improving squid growth rate, comprising sorting timing, squid anesthesia, sorting method, squid recovery, parthenoculture, specifically comprising the following steps:

[0023] 1) Sorting timing: cuttlefish at the early stage of selective gland development;

[0024] 2) Squid anesthesia: Soak the squid in seawater containing 3% ethanol, 17g / L magnesium chloride and 6mg / L isoeugenol for 80s to deeply anesthetize the squid;

[0025] 3) Sorting method: Take out the anesthetized squid, gently open the abdominal mantle cavity of the squid, the ovary and testis are located at the back end of the mantle cavity, insert an electro-optic curette or a self-made similar tip-emitting probe into the mantle from the abdomen, and see reddish-brown The ovary glands are female, and the milky white seminal vesicles are male;

[0026] 4) Squid recovery: Rinse the sorted squid with clean water first, then soak in seawater containing 2ug / L modafinil and 0.2ug / L o...

Embodiment 3

[0029] A parthenoculture method for improving squid growth rate, comprising sorting timing, squid anesthesia, sorting method, squid recovery, parthenoculture, specifically comprising the following steps:

[0030] 1) Sorting timing: cuttlefish at the early stage of selective gland development;

[0031] 2) Squid anesthesia: Soak the squid in seawater containing 2% ethanol, 17.5g / L magnesium chloride and 5mg / L isoeugenol for 90s to deeply anesthetize the squid;

[0032] 3) Sorting method: Take out the anesthetized squid, gently open the abdominal mantle cavity of the squid, the ovary and testis are located at the back end of the mantle cavity, insert an electro-optic curette or a self-made similar tip-emitting probe into the mantle from the abdomen, and see reddish-brown The ovary glands are female, and the milky white seminal vesicles are male;

[0033] 4) Squid recovery: Rinse the sorted squid with clean water first, then soak in seawater containing 1.5ug / L modafinil and 0.3ug...

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PUM

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Abstract

The invention discloses a monosex cultivation method for increasing the inkfish cultivation rate. The method comprises the following steps of selecting inkfish at the preliminary gonad development stage; performing deep anesthesia on the inkfish; taking out the anesthetized inkfish, slightly pushing aside the mantle cavity of the abdomen of the inkfish, and inserting an electro-optical ear spoon or a self-made similar end light-emitting probe into the mantle from the segmental venter, wherein the inkfish is female when a bronzed nidamental gland is seen, and the inkfish is male when milky seminal vesicle is seen; cleaning the sorted inkfish with clean water, then soaking the inkfish with seawater, using a tap water pipe or a faucet for repeatedly flushing the mantle cavity of the inkfish,and promoting anabiosis; returning the anabiosis inkfish back to clean seawater, and performing normal cultivation. The method has the advantages that in the cultivation method, the mate fighting, battling, killing and devouring problems can be greatly reduced, and the survival rate of the inkfish cultivated to the latency period is increased; the cultivation method can reduce energy dissipation in the cultivation process, absorbed nutrients are mainly deposited in muscles, and the per unit area yield is increased.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a parthenoculture method for improving the growth rate of squid. Background technique [0002] Sepiella maindroni belongs to Mollusca Mollusca, Cephalopoda, Dibranchia, Sepioidea, Sepiidae, Sepiella. Man's needleless squid is a seafood with high protein, low fat and comprehensive nutrition. Its economic value is high, and its edible portion accounts for 92% of the total. Its meat is white, nutritious, high-quality protein and rich in trace elements, and delicious. Regular consumption can delay intelligence, delay aging, improve hematopoietic and immune functions, and have a certain effect on preventing cardiovascular diseases, anemia and tumors. However, with the rounding up of spawning groups and the damage to juvenile squid caused by netting operations, the increase in fishing intensity has prevented the squid population from being effectively replenished, coupled with th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00A01K61/90
CPCA01K61/00A01K61/90Y02A40/81
Inventor 刘立芹张瑶刘炳舰龚理吕振明
Owner ZHEJIANG OCEAN UNIV
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