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Method for artificially breeding sepia lycidas gray

An artificial and artificial technology for the squid, which is applied in the field of artificial seedling raising of the squid, can solve the problems that there are no reports on the artificial breeding of squid, and there are not many studies on the squid, and is suitable for large-scale promotion, easy to breed and grow. quick effect

Active Publication Date: 2013-02-27
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

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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 whol...

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 in length, When the length of the body is 1.4cm, the width of the body is 1.1cm, and the body weight is 0.4g, the seedling cultivation is completed; (6) Move the hatched seedlings to the seedling pool, 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 breeding sepia lycidas gray, and the method is characterized by comprising the following steps of (1) parent breeding: selecting a harmless parent with complete body into a temporary culture cement tank to be temporarily cultivated, feeding the parent with chilled fishes twice a day, wherein the feeding quantity is 2 to 5 percent of the weight of the sepia lycidas gray; (2) artificial breeding: placing an egg attaching device inside the temporary culture cement tank, mating the male and the female parents to lay eggs, and then transferring the eggs into a hatching tank to be hatched; and (3) offspring breeding: transferring the hatched seedlings into a seedling tank, feeding fairy shrimp nauplius or copepoda in the early stage, feeding copepoda, opossum shrimp or larval prawn in the middle stage, and feeding fresh live fishes and small shrimps in the late stage, completing the breeding of the seedling when the length of the seedling is more than 2cm, the trunk length is more than 1.2cm, the trunk width is more than 0.9cm and the weight is more than 0.3g, and taking out the seedlings with water. The method has the advantages of high survival rate, easiness in cultivation, large cultivation specification, 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 Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 蒋霞敏唐锋彭瑞冰罗江
Owner NINGBO UNIV
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