Method for culturing cod fish by using sea cage

A technology of cage culture and cage, which is applied in fish farming, application, climate change adaptation and other directions, can solve problems such as reducing the economic value of the process, and achieve the effects of good application effect, slow aging and good economic benefits

Inactive Publication Date: 2017-10-10
舟山市普陀兴海养殖优质种苗选育研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention can effectively prevent the fish from killing each other and improve the survival rate of the fish, but the bait left on the net cage will affect the growth of the fish and reduce the economic value of the process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for cultivating squid in seawater net cages, comprising the following steps:

[0018] (1) Pond preparation: seawater cages are made of polyethylene material, the perimeter of the cage is 40m, and the depth of the cage is 10m. It has good mechanical, physical and chemical properties, it is not corroded by bacteria, and it is not easy to be damaged by mildew and rot in water; (2) Fish species stocking: select brown flounder fry with uniform specifications and a body length of 4cm, and place them in fry boxes Temporary breeding, stocking is carried out in the morning or evening on a sunny day. When stocking, put the fry together with the plastic bag into the water. After 5 minutes, turn the bag in one direction. After two or three treatments for about 20 minutes, when the water temperature inside and outside the bag is the same After opening the plastic bag, stocking density is 15 tails / m 2 . If the stocking density is too high, it is not conducive to the growth...

Embodiment 2

[0020] A method for cultivating squid in seawater net cages, comprising the following steps:

[0021] 1) Preparation of net cages: seawater net cages are made of polyethylene materials, the perimeter of the net cages is 50m, and the depth of the net cages is 12m. It has good mechanical, physical and chemical properties, it is not corroded by bacteria, and it is not easy to be damaged by mildew in water;

[0022] 2) Stocking of fish species: Select uniform size and body length of 4.5cm to stock, and the stocking density is 17 fish / m 2 . If the stocking density is too high, it is not conducive to the growth of fish species; if it is too low, it will waste cage resources. This density ensures the good growth of fish species and makes full use of cage resources;

[0023] 3) Feed and feed: the feed for feeding is commercial fish compound feed: when feeding each meal, 63% of the fish will leave and then stop feeding, and feed 3 times a day. Under this condition, nutrients can be...

Embodiment 3

[0027] A method for cultivating squid in seawater net cages, comprising the following steps:

[0028] 1) Preparation of net cages: Seawater net cages are made of polyethylene materials, the perimeter of the net cages is 90m, and the depth of the net cages is 15m. It has good mechanical, physical and chemical properties, it is not corroded by bacteria, and it is not easy to be damaged by mildew in water;

[0029] 2) Stocking of fish fingerlings: Select uniform size and 4cm long goosefish for stocking, and the stocking density is 20 fish / m 2 . If the stocking density is too high, it is not conducive to the growth of fish species; if it is too low, it will waste cage resources. This density ensures the good growth of fish species and makes full use of cage resources;

[0030] 3) Feed and feed: the feed for feeding is commercial fish compound feed: when feeding each meal, 68% of the fish leave and then stop feeding, and feed 4 times a day. Under this condition, nutrients can b...

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PUM

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Abstract

The invention discloses a method for culturing cod fish by using a sea cage. The method comprises the steps of sea cage preparation, fish stocking of fingerling, fish bait feeding and sea cage maintenance. The method has the advantages that the method is low in investment cost, high in culturing efficiency, less in environmental pollution and stable in cod fish production, and has good ecological benefits and social benefits. An added mixed algae water scavenging agent is immobilized algae cells, high in synthesis metabolic activity and slow in senility, can effectively remove ammonia nitrogen, nitrate and nitrite which are adhere to the sea cage, and improves the sea cage environment; the scavenging agent is easy in technology method, good in product quality and stability, low in price and good in application effect, and has good economic benefits.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for cultivating squid in seawater net cages. Background technique [0002] The body of the catfish is elongated and flat on the sides, the back and abdomen are shallow arcs, the general body length is 45-55cm, the weight is 500-1000g, the mouth is large and slightly inclined, the body is covered with ctenoid scales, the scales are small, the surface is rough, the head is covered with round scales, jaws There are 4 holes, the central jaw hole and the inner jaw hole are arranged in a square, without barbels. The outer teeth of the upper jaw and the inner teeth of the lower jaw are enlarged, showing canine shape, and the small teeth on the inner surface are grouped in bands, the eye circles are large, and the eye membranes are highly transparent and bright red. The body is blue-gray brown, the belly is gray-white, two dorsal fins are connected together, and there is a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K61/60
CPCA01K61/10A01K61/60Y02A40/81
Inventor 施晓峰
Owner 舟山市普陀兴海养殖优质种苗选育研究所
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