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Method and device for breeding octopus ocellatus larvae

A cultivation method and a cultivation device technology, applied in the field of octopus larvae cultivation method and device, to achieve the effects of improving larvae metamorphosis rate, low cost, and overcoming low survival rate

Active Publication Date: 2015-08-19
烟台市海洋经济研究院
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  • Application Information

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Problems solved by technology

However, at present, the high mortality rate of octopus larvae at the bottom-attached transition stage has always been a difficulty in seed breeding; therefore, providing an effective method for cultivating octopus larvae has very important significance for the large-scale seed breeding of octopus octopus

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  • Method and device for breeding octopus ocellatus larvae
  • Method and device for breeding octopus ocellatus larvae
  • Method and device for breeding octopus ocellatus larvae

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Embodiment Construction

[0017] In May 2013, octopuses with complete arms and legs and plump carcass were selected as broods. There were 45 broods, including 25 females. The body weight of the parents was 249-1809g, with an average of 697.7g, and the total length was 41.2-88.4cm, with an average of 57.35cm. Parents placed at 18m 3 Ripening is promoted in the cement pool, and before the parent body is stocked, the holding pool is strictly sterilized. Parent octopus nests are placed in the breeding pool, and the number is 1.2 times the number of parents. The cultivation water temperature is 18.2-22.4°C, the salinity is 30-33, the pH value is 8.0-8.4, the light is 500-800Lx, and the dissolved oxygen is above 5mg / L. Change the water at 9:00 every day and clean up the residual bait. The daily water change is 200% to 300%. The bait is mainly downy crab, supplemented by Philippine clam. The bait is cast at 16:30 every day, and the bait rate is 12% to 16%.

[0018] Eggs are laid after 30-45 days of broods...

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Abstract

The invention aims at providing a method and device for breeding octopus ocellatus larvae. On the basis of a conventional octopus ocellatus larva breeding method, a lamplight inducing method is used for screening the healthy larvae which are well developed and are high in vigor. In the later period of the planktonic stage, temperature change stimulation is adopted, and the transformation rate and the survival rate of the larvae are increased. The device for breeding the larvae can adapt to the burrow habit of the octopus ocellatus larvae and overcome the defect of cannibalism of the larvae. In addition, growth and development of the octopus ocellatus larvae can be well met with the adoption of hole diameters with different specifications. Manmade materials such as PVC can be completely adopted as the raw materials for manufacturing the device, manufacturing is simple and convenient, cost is low, corrosion is prevented, repeated use is achieved, and the water quality is not affected.

Description

technical field [0001] The invention belongs to the technical field of octopus seed breeding, and in particular relates to a method and device for cultivating octopus larvae. Background technique [0002] Octopus vulgaris belongs to the phylum Molluscs, Cephalopoda, Dibranchia, Octopus, Octopidae, and Octopus genus. It is widely distributed in temperate and tropical seas and is an important fishing species for cephalopods. The real octopus is delicious, rich in nutritional value, and the edible part is extremely high. In addition to a large amount of protein, it is also rich in vitamin A. In my country, the true octopus is mainly distributed in the coastal waters of Guangdong, Guangxi, Fujian, and Zhejiang. After three months of sea cage culture, the weight gain can reach 6-10 times. Because of its high growth rate and low-value bait organisms, octopus has attracted the attention of farmers and has become an important source of income for some fishermen in southern China. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/033
CPCA01K67/033
Inventor 刘永胜刘兆胜郑小东陈相堂江守星杨菲
Owner 烟台市海洋经济研究院
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