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Method for overwintering temporary rearing of blue crabs

A technology for blue crabs and crab species, which is applied in fish farming, climate change adaptation, animal feed, etc., can solve the problems of low survival rate, low survival rate, difficulty in overwintering breeding of Sanmen blue crabs, etc., and improve the survival rate , the effect of good meat taste

Inactive Publication Date: 2018-06-12
祝才盈
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to temperature constraints, it is difficult to breed Sanmen blue crabs naturally over winter, and the survival rate is extremely low
The solution is mainly to carry out overwintering temporary breeding. Currently, there are indoor cement pools, outdoor ponds and greenhouses for temporary breeding overwintering, etc., but the survival rate is generally not high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of method for the overwintering of mud crab temporarily raises, comprises the steps:

[0019] Step 1: site selection: build a scaffold on the outdoor mud pond, and cover the scaffold with a plastic film to form a heat preservation shed. Install the anti-escape net on the heat preservation shed, and the size of the bottom of the heat preservation shed is 80 meters long and 6 meters wide. ;

[0020] Step 2: the selection of temporary crab species: select mated female crabs and adult lean male crabs as crab species;

[0021] Step 3: stocking crab species: put the crab species in the mud pond for stocking, and put bait into the mud pond at one time and carry out daily management of the mud pond. The density of stocking in the mud pond is 2-5 / square meter.

[0022] The time for stocking crab species in mud ponds is October of the lunar calendar. The bait is shellfish. Daily management is to observe the water depth every two to three days. If the water depth is low...

Embodiment 2

[0025] A kind of method for the overwintering of mud crab temporarily raises, comprises the steps:

[0026] Step 1: site selection: build a scaffold on the outdoor mud pond, and cover the scaffold with a plastic film to form a heat preservation shed. Install the anti-escape net on the heat preservation shed, and the size of the bottom of the heat preservation shed is 80 meters long and 6 meters wide. ;

[0027] Step 2: Selection of temporary crab species: Select mated female crabs and adult thin male crabs as crab species, and the crab species are complete without injury, large and vigorous, with a fresh and green shell. , a disease-free individual;

[0028] Step 3: Stocking crab species: put 600 catties of crab species in the mud pond for stocking, and put 200 catties of live clams into the mud pond at one time and carry out daily management of the mud pond. The density of stocking in the mud pond is 2-5 / square meter. The time for stocking crab species in mud ponds is Oc...

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Abstract

The invention discloses a method for overwintering temporary rearing of blue crabs, which includes steps of first step, site selection: building a shed frame on an outdoor mud area, covering the shedframe by a plastic thin film to form a heat insulation shed, wherein the average water depth of the mud area is 0.2m; covering 0.3-0.5m earth at the bottom part of the mud area and mounting an anti-escape screen on the heat insulation shed; step two, selection of temporary rearing crabs: selecting copulatory female crabs and adulted thin male crabs as the crab seed; step three, crab seed stocking:placing the crab seeds in the mud area to stock, and feeding bait in the mud area once and carrying out daily management of the mud pond. The method greatly improves the survival rate of the overwintering blue crabs, the survival rate is 80-90%; meanwhile, the blue crabs have better meat quality and taste.

Description

technical field [0001] The invention relates to a method for overwintering temporary breeding of blue crabs. Background technique [0002] Sanmen blue crab breeding is one of the traditional marine culture products of Sanmen. Sanmen is named "Hometown of Blue Crabs". China Famous Brand", "China International Agricultural Expo Gold Award" and many other awards, the products sell well in domestic and foreign markets. However, the production and sales of Sanmen blue crabs have strong seasonality. Summer and autumn are the peak seasons for blue crab production. Because blue crabs have the habit of hibernating, they are often out of stock in winter, and this season is also the peak season for blue crab sales. Due to temperature constraints, it is difficult to breed Sanmen blue crabs naturally over winter, and the survival rate is extremely low. The solution is mainly to carry out overwintering temporary breeding. At present, there are indoor cement pools, outdoor ponds and gree...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A23K50/80A23K10/22
CPCA01K61/59A23K10/22A23K50/80Y02A40/81
Inventor 祝才盈祝显选
Owner 祝才盈
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