High-density blue crab fat-breeding method in fat-breeding pool

A high-density, ointment-growing technology, which is applied in climate change adaptation, fishing, animal feed, etc., can solve the problems of disease-infected water quality conditions, high technical requirements for ointment breeding, and mutual killing of blue crabs, so as to achieve low incidence and high operational efficiency. Simple and easy to operate, good water quality effect

Inactive Publication Date: 2008-05-28
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, earthen pond breeding cream faces risks such as mud crabs killing each other, disease infection, and water quality conditions are not easy to control, and the technical requirements for breeding cream are high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The blue crab breeding pond is selected in the beach with a hard bottom in the reclamation area. The breeding pond is built with materials such as stone and brick, with an area of ​​200m 2 , the height of the wall of the breeding cream pool is slightly lower than the height of the neap tide, and the depth of the pool is 1.5m. There are water inlets and outlets in the breeding cream pool, and the bottom of the pool is covered with a sand layer. The thickness of the sand layer is 10-12cm. The pool mouth is tightly covered with 2 layers of polyethylene mesh, the mesh size is 1-2 cm, and the water is changed twice a day. Select female crabs with complete appendages, healthy body, and mating, and stock them in different categories. The stocking density is 5-6 / m 2 . The daily feeding amount of small miscellaneous fish and shrimp is generally controlled at 10% to 12% of the total weight of blue crabs; low-value shellfish oysters, clams and blue clams can be controlled at 25%...

Embodiment 2

[0017] The blue crab breeding pond is selected from the beach with a hard bottom in the inner bay, and the breeding pond is built with stone and other materials, with an area of ​​300m 2 , the height of the wall of the ointment pond is slightly lower than the height of the neap tide, the depth of the pond is 1.8m, the bottom of the pond is covered with a sand layer, the thickness of the sand layer is 10-12cm, shelters of pottery pipes and cement pipes are placed, and the mouth of the pond is tightly covered with 2 layers of polyethylene mesh , The mesh is 1-1.5cm, and the cream tank is equipped with a water inlet and a drain. Select female crabs with complete appendages, healthy body, and mating, and stock them in different categories. Stocking density 10-15 / m 2 . The daily feeding amount of small miscellaneous fish and shrimp is generally controlled at 9% to 10% of the total weight of blue crabs; low-value shellfish oysters, blue clams, and short-toothed clams can be contro...

Embodiment 3

[0019] The blue crab breeding pool is selected in the middle and low tide area of ​​the sandy intertidal zone. The breeding pool is built with materials such as stone and brick, with an area of ​​200m 2 , the height of the wall of the breeding pool is slightly lower than the height of the neap, and the depth of the pool is 1.6m. The breeding pool is equipped with a water inlet and a drain, and the bottom of the pool is covered with a sand layer with a thickness of 13-14cm. Place ceramic pipes and cement pipes for shelter The pool mouth is tightly covered with 2 layers of polyethylene mesh with a mesh size of 1.5-2 cm. Select female crabs with complete appendages, healthy body, and mating, and stock them in different categories. The stocking density is 8-10 / m 2 . The daily feeding amount of small miscellaneous fish and shrimp is generally controlled at 7% to 10% of the total weight of blue crabs; low-value shellfish oysters, blue clams, snails, etc. can be controlled at 20% t...

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PUM

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Abstract

The invention relates to a crab roe culturing method in a high density crab roe culturing tank of blue crabs, relating to an aquiculture method, and providing a crab roe culturing method in a high density crab roe culturing tank with high culturing density, high survival rate and high weight growth rate during the culturing period, and the method can enhance the culturing quality of the blue crabs. The crab roe culturing facilities: the crab roe culturing tank made of stones and bricks, etc., with the wall height of the crab roe culturing tank lightly lower than that of a neap tide, the tank depth of 1.5 to 2.0m, and area of 200 to 500m<2>; the crab roe culturing tank is provided with a water inlet and a water outlet, the bottom of the tank is a layer of sand with a shielding object positioned, the tank mouth is tightly covered with a steel sheet, and the water in the tank is replaced twice every day when the tide comes. The crab roe culturing measures are that: mated female crabs with complete appendages are divided into two kinds: one kind is just mated female crabs, and the other is the female crabs mated for one month, and the two kinds are cultured respectively, with a culturing density of the female crabs being 5 to 10crabs/m<2>; the daily feeding quantity of small fishes and shrimps is controlled between 5 to 12 percent of the total weight of the blue crab, and that of low value small shellfishes is controlled between 20 to 35 percent of the total weight of the blue crab, and all foods are cast once respectively in the morning and evening.

Description

technical field [0001] The invention relates to an aquaculture method, in particular to a method for raising cream in a high-density mud crab breeding pond for promoting weight gain and ovarian development of female crabs. Background technique [0002] Blue crabs are large in size, fast in growth, and delicious in meat quality. They are important seawater cultured crabs in southern my country. Sexually mature female crabs are called "red paste crabs" because of the red ovaries on both sides of the carapace. "Red Paste" is delicious, nutritious and favored by consumers. The lean crabs are fattened and promoted by artificial fattening technology, which has the advantages of short breeding period and significant economic benefits. At present, the fattening technology mainly adopts earthen pond culture to promote fattening (Chen Fenshen. Scylla serrata promoting fattening technology, Scientific Fish Farming, 2004, 10: 26-27). However, earthen pond breeding cream faces risks s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A23K1/18A01K69/00A23K10/22A23K50/80
CPCY02A40/81
Inventor 叶海辉王桂忠林琼武李少菁
Owner XIAMEN UNIV
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