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Method for artificially breeding sepia lycidas gray

An artificial and artificial technology, which is applied to the field of artificial seedlings of the pseudo-squid, can solve the problems that there is not much research on the pseudo-squid, and no research reports on the artificial seedlings of the S. high volume effect

Active Publication Date: 2014-07-23
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are not many researches on Squid order at home and abroad, mainly focusing on reproductive behavior, epidermal collagen, and larval response to CO2. 2 Tolerance, fertilization behavior, predation behavior, etc., so far, there have been no relevant research reports on the artificial breeding of squid.

Method used

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  • Method for artificially breeding sepia lycidas gray

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of method for artificial seedling cultivation of squid of the present invention specifically comprises the following steps:

[0028] 1. Parental cultivation

[0029] (1) Source and transportation of parent

[0030] From mid-March to late April, small-scale trawls were used to catch spawning and migratory groups in the natural sea area of ​​Zhao'an County, Zhangzhou City, Fujian Province. Select the complete body shape, and put the harmless parents into the device filled with seawater and oxygenated for temporary raising, and send them to the cement pool for temporary raising as soon as possible. When transporting, it is equipped with 2.0×1.5.×1.0m 3 The minivan with nylon canvas is equipped with seawater with a temperature of 14-25 and a salinity of 28-30, and is oxygenated. The transportation time is 0.5h, and the average transportation survival rate is 95.26%. Once inkjet individuals are found, the ink should be removed immediately or the water in the whole...

Embodiment 2

[0079] Same as Example 1, the distinguishing features are: (1) broodstock cultivation water temperature 14°C, salinity 28, dissolved oxygen 10mg / L, pH 7.81; (2) spawning water temperature 16.4°C, salinity 28; (3 ) The hatching salinity is 25, the temperature is 21 °C, and the average hatching time is 34 days; (4) The seedling cultivation temperature is 21 °C, the salinity is 23, and the pH is 7.81; 1.5cm, the body width is 1.2cm, and when the body weight is 0.5g, the seedling cultivation is completed. (6) The distance between the fixed ropes is 80cm. The upper end of the ovipositor is fixed on the fixed rope, and the lower end is tied with a sinker weighing 0.1-0.2kg. -5cm gap, the above-mentioned egg attaching device is a polyethylene mesh with a mesh size of 25-30mm and a nylon rope with a diameter of 8mm-12mm. The polyethylene mesh or nylon rope is uniformly hung on each fixed rope, and the polyethylene mesh is suspended. The fixed rope and the fixed rope hanging the nylon...

Embodiment 3

[0081] Same as Example 1, its distinguishing features are: (1) broodstock cultivation water temperature 25°C, salinity 30, dissolved oxygen 12.50 mg / L, pH 8.04; (2) spawning water temperature 25.0°C, salinity 30 (3) The hatching salinity is 30, the temperature is 27°C, and the average hatching time is 24 days; (4) The seedling cultivation temperature is 27°C, the salinity is 30, and the pH is 8.04; (5) When the seedlings are 2.5cm long, When the body length is 1.4cm, the body width is 1.1cm, and the body weight is 0.4g, the seedling cultivation is completed; (6) Move the hatched seedlings to the seedling pond, and feed 1.5-5mm copepods in the early stage, and the bait density is 2 / mL; in the mid-term, feed 5-25mm mysis shrimp with a bait density of 8 / L; in the later stage, feed fresh and live small miscellaneous fish and 2.0-5.0cm small miscellaneous shrimp.

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Abstract

The invention discloses a method for artificially cultivating squid seedlings, which is characterized in that it comprises the following steps: (1) Broodstock cultivation: select the broodstock with complete body shape and no damage, send it to a temporary cement pond for temporary cultivation, and feed chilled small miscellaneous Fish, feeding twice a day, the feeding amount is 2% to 5% of the weight of the squid; (2) artificial reproduction: place the ovipositor in the temporary cement pond, and the male and female broodstock will mate and lay eggs, and then transfer to (3) Seed cultivation: move the hatched seedlings to the seedling pond, feed Artemia nauplii or copepods in the early stage, and feed copepods, mysis or vannamei in the middle stage For prawn larvae, feed fresh and live small miscellaneous fish and small miscellaneous shrimp in the later stage. When the total length of the seedlings is greater than 2cm, the carcass length is greater than 1.2cm, the carcass width is greater than 0.9cm, and the weight is greater than 0.3g, the seedlings are cultivated and emerge with water. Advantages It has high survival rate, easy breeding, large size, strong disease resistance and fast growth.

Description

technical field [0001] The invention relates to a method for raising seedlings of aquatic animals, in particular to a method for artificially raising seedlings of squid. Background technique [0002] Squid ( Sepia lycidas ) belongs to Cephalopoda, Sepioidea, Sepiidae ) , Sepia ( Sepia ), is a benthic species with strong warm water in shallow seas, inhabits offshore waters with a water depth of 15-100m in the continental shelf area, and is distributed in the Indian Ocean-Western Pacific Ocean. In the South China Sea, the spawning season is from October to February of the following year. During this period, the resources are abundant at a water depth of 60-100m; from March to May, it migrates to a water depth of 15-30m near the coast. The eggs are mostly attached to substances such as gorgonians, sargassum, bamboo branches or strings. The squid has a large body (maximum carcass length 40cm, weight 5kg), short breeding cycle, rapid growth, delicious meat, high protein cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 蒋霞敏唐锋彭瑞冰罗江
Owner NINGBO UNIV