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Method for cultivating large-size offspring seeds of pharaoh cuttlefish

A tabby squid, large-scale technology is applied in the field of cultivation of tabby squid large-scale seedlings, which can solve problems such as no method for cultivating tabby squid large-scale fry, and achieve clear observation of larvae, simple and feasible operation, and rapid growth of larvae. Effect

Active Publication Date: 2014-02-05
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Only see the toxicity test of potassium permanganate on embryos and larvae (Tan Yongsheng et al., 2011), the feeding, excretion and irreversible point of larvae (Xie Xiaohui et al., 2011), the effects of salinity, temperature and pH on the survival rate and behavior of larvae (Article Jing et al., 2011), the effects of temperature and salinity on the hatching of fertilized eggs and the survival of larvae (Liu Jianyong, 2010, Huang Jiansheng, 2012), so far there is no relevant research report on the cultivation method of large-scale seedlings of tiger squid

Method used

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  • Method for cultivating large-size offspring seeds of pharaoh cuttlefish
  • Method for cultivating large-size offspring seeds of pharaoh cuttlefish
  • Method for cultivating large-size offspring seeds of pharaoh cuttlefish

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for cultivating large-scale seed of tiger squid, the concrete steps are as follows:

[0033] (1) Preliminary training

[0034] Put the tiger squid larvae with a length of 0.6-1.0 cm just out of the membrane in a circular plastic screen basket floating on the water surface of the cement pool, at a water temperature of 22°C, a salinity of 24, a dissolved oxygen of 4mg / L, and a breeding density of 100 / basket Under the condition of 8 days, live mysis was fed daily during the cultivation process, feeding twice a day, the daily feeding amount was 14% of the body weight of tiger squid larvae, and the water was changed once a day, and the water exchange amount was 50%; The sieve hole diameter of the circular plastic sieve basket is 0.1cm, and the color is blue;

[0035] (2) Mid-term training

[0036] Move the tiger squid larvae whose carcass length is greater than 1.0cm and less than 3.0cm to a cement pond for cultivation, at a water depth of 60cm, at a water tempera...

Embodiment 2

[0040] With embodiment 1, its difference is:

[0041] (1) Preliminary training

[0042] Under the conditions of water temperature 24°C, salinity 30, dissolved oxygen 10mg / L, and breeding density 200 / basket, cultured for 10 days; during the cultivation process, daily feeding of strengthened artemia nauplii, daily feeding amount of tiger squid 8% of the body weight of the larvae; the sieve hole diameter of the circular plastic sieve basket is 0.3cm, and the color is red;

[0043] (2) Mid-term training

[0044] At a water depth of 70cm, a water temperature of 25°C, a salinity of 22, a dissolved oxygen of 8mg / L, and a breeding density of 500 / m2 Under the condition of 28 days, live mysis was fed daily during the cultivation process, 2 times a day, the daily feeding amount was 15% of the body weight of tiger squid larvae, and the water was changed 2 times a day;

[0045] (3) Later cultivation

[0046] At a water depth of 100cm, a water temperature of 25°C, a salinity of 29, a ...

Embodiment 3

[0048] With embodiment 1, its difference is:

[0049] (1) Preliminary training

[0050] Under the conditions of water temperature 27°C, salinity 33, dissolved oxygen 20mg / L, and breeding density 300 / basket, culture for 12 days; feed twice a day during the culture process, and the daily feeding amount is 12% of the body weight of tiger squid larvae; The sieve hole diameter of the circular plastic sieve basket is 0.5cm;

[0051] (2) Mid-term training

[0052] At a water depth of 80cm, water temperature 22°C, salinity 24, dissolved oxygen 20mg / L, breeding density 700 / m 2 Under the condition of 35 days, feed was fed twice a day during the cultivation process, and the daily feeding amount was 17% of the body weight of tiger squid larvae;

[0053] (3) Late cultivation

[0054] At a water depth of 120cm, a water temperature of 27°C, a salinity of 33, a dissolved oxygen of 20mg / L, and a breeding density of 200 / m 2 Under the condition of 30 days, the seed culture was completed, ...

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Abstract

The invention discloses a method for cultivating large-size offspring seeds of pharaoh cuttlefish. The method comprises the following steps of (1) early-period cultivation: putting larvae coming out of membranes newly into round plastic screen baskets, and cultivating the larvae for 8-12 days under the conditions of the water temperature of 22-27 DEG C, the salinity of 24-33, the dissolved oxygen more than 2mg / L and the cultivation dense of 100-300 per basket; (2) medium-period cultivation: moving the larvae with torso lengths of 1-3cm into a cement pit with water depth of 20-80cm, and cultivating the larvae for 20-35 days under the conditions of the water temperature of 22-27 DEG C, the salinity of 24-33, the dissolved oxygen more than 4mg / L and the cultivation dense of 250-700 per square meter; (3) late-period cultivation: putting larvae with torso lengths of 3-6cm into a cement pit with water depth of 80-120cm, and cultivating the larvae for 15-30 days under the conditions of the water temperature of 22-27 DEG C, the salinity of 24-33, the dissolved oxygen more than 4mg / L and the cultivation dense of 100-200 per square meter. The method has the advantages that the breeding rate is high, the larvae grow fast, and the method is easy to implement.

Description

technical field [0001] The invention relates to a method for cultivating aquatic animals, in particular to a method for cultivating large-scale seedlings of tiger squid. Background technique [0002] Tabby squid ( Sepia pharaonis ) belongs to the phylum Mollusca, order Sepioidea, family Sepiidae, genus Sepia ( Sepia ). Distributed in the tropical waters of the Indo-Pacific, it is found in waters from the shore to a water depth of 100m. Tiger squid is a large individual (maximum carcass length 48cm, weight up to 5kg), tender meat, delicious taste, and rich nutrition. It is a kind of economic catch near the bottom of the bank with high economic value. Because of its high feed conversion rate, suitable for high-density breeding, strong disease resistance, fast growth and other advantages, it is an economical cephalopod with great development and breeding prospects. [0003] In recent years, in order to restore and develop cephalopod resources in my country, the research on...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 蒋霞敏彭瑞兵唐峰乐可鑫孙志鹏罗江
Owner NINGBO UNIV
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