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Technology using net cages to cultivate oosperms of sepiella maindroni and carry out breeding

A technology of Mann's needleless squid and fertilized eggs, which is used in applications, fish farming, climate change adaptation, etc.

Inactive Publication Date: 2013-06-05
NINGDE NANHAI AQUATIC PRODS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional culture of fertilized eggs and seedlings of Squid Mansoni is restricted by factors such as the limitation of seedling water, and the cultivated seedlings and fertilized eggs are far from meeting customer needs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: Construction of standard nursery room for squid without needles

[0029] The standard nursery room is built with a steel frame structure. The roof and some walls are made of color steel plates. The room has the functions of easy adjustment of light, water quality and dissolved oxygen. It is suitable for the healthy growth of larval squid larvae. 2000-3000m of each Mansoni squid nursery room will be built 2 .

Embodiment 2

[0030] Embodiment 2: construction of special net cage for squid breeding

[0031] Make 20 special net cages for squid breeding. The bottom side of the inner cavity of the cage is equipped with a smooth upper side and a heavy material. The perch bracket is composed of a convex part and a groove part. There are several through holes for sediment drainage in the bottom, and fixed anchors are connected to the lower side of the perching bracket. Supporting production of 500 self-designed ovaries, made of 18# iron wire as the frame, nylon mesh with a size of 30×50cm or 60×80cm, and a mesh of 1×1cm or 2×2cm.

Embodiment 3

[0032] Embodiment 3: Cultivate broodstock, lay eggs, and collect fertilized eggs in 20 special-purpose net cages for squid cultivation

[0033] In the sea area, 60,000 adult squid squid are cultured in special net cages for squid breeding, and the adult fish with complete body shape, robustness, no disease, no injury, no deformity, strong vitality, good food intake and body weight greater than 100g are selected as broodstock , Breeding 12,000 sexually mature broodstock, the ratio of female to male is about 1:1. Put the ovaries in the special net cage for squid breeding, guide the squid to lay eggs, collect the fertilized eggs after the brood ovulation, and harvest 3000kg.

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PUM

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Abstract

The invention discloses technology using net cages to cultivate oosperms of sepiella maindroni and carry out breeding, and relates to a breeding method for aquatic products. The technology mainly includes a first step of carrying out parent breeding, a second step of laying eggs, a third step of collecting the oosperms, a fourth step of keeping alive and freshness, and a fifth step of breeding offspring seeds. The breeding method includes the steps of using the autonomously developed net cages to cultivate sepiella maindroni parents and the oosperms, collecting a large number of oosperms of the sepiella maindroni cultivated through the net cages in sea areas, then transferring the oosperms of the sepiella maindroni into a phytotrone to incubate and cultivate the offspring seeds. The technology breaks through the bottleneck of quantitative limitation for traditional indoor cultivation. Through usage of the autonomously developed special net cages for cultivation of the sepiella maindroni, and through the innovation technology such as health seedling cultivation and improving of seedling cultivation quantity per unit water body, the technology achieves scale cultivation of the offspring seeds of the sepiella maindroni, and promotes popularization of the coastal sepiella maindroni scale seedling cultivation technology.

Description

[0001] technical field [0002] The invention relates to a method for cultivating aquatic products, in particular to a technique for cultivating fertilized eggs and seedlings of squid mansoni by using net cages. Background technique [0003] Man's needleless squid ( Sepiella maindroni ), commonly known as cuttlefish, belongs to Cephalopoda and Sepiaceae. It is an excellent variety among more than 100 squid species. Tender, loved by people. Mansoni squid was once one of the four major targets of marine fishery in my country, and it has high economic and utilization value. However, due to overfishing, since the 1990s, the resources in the sea area have declined significantly and are on the verge of extinction. For this reason, the artificial breeding and cultivation of squid mansoni have been studied both at home and abroad. Mansoni's needleless squid can be cultured in seawater cages, earthen ponds and indoor cement ponds, and can be grown in 2 to 3 months, with few disea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 谢友亮周瑞发周绍锋林会登饶连珠
Owner NINGDE NANHAI AQUATIC PRODS TECH
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