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Method for cultivating blue crab and green crab in autumn and winter

A method for cultivating mud crabs and a technology for mud crabs, which are applied in the field of mud crab breeding, can solve problems such as single sex breeding, overwintering, fattening and red breeding methods of mud crabs that have not yet been seen, and achieve fresh and pollution-free water quality, increase production, and improve breeding. The effect of density

Inactive Publication Date: 2008-11-12
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is not yet a culture method that integrates single-sex culture, overwintering, fattening and red breeding of blue crabs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016]1) Preparation before breeding: Drain the water in the breeding pond with muddy bottom and expose it to the sun until the bottom mud is cracked. Before stocking, use quicklime to clean the pond. 10 to 13 days before stocking, use 55kg of quicklime to clear the pond per mu to kill Kill fish and harmful microorganisms, improve the bottom quality of the breeding pond, filter the water with a 60-mesh water inlet mesh to filter the water at a water level of 60cm, fertilize, and cultivate the water in the pond; the water depth is 1.5-1.6m, and the breeding pond is preferably an estuary Area water pond. According to the situation of algae reproduction, appropriate fertilization can be applied to cultivate the pool water. The muddy bottom is conducive to the burial and overwintering of blue crabs.

[0017] 2) Select mating female crabs after the beginning of autumn and female crabs that have been confirmed to have mated. Since the beginning of autumn is the mating season of bl...

Embodiment 2

[0025] 1) Preparation before breeding: Drain the water in the breeding pond with muddy bottom and expose it to the sun until the bottom mud is cracked. Before stocking, use quicklime to clear the pond. Kill fish and harmful microorganisms, improve the bottom quality of the breeding pond, filter the water with a 60-mesh water inlet mesh to filter the water at a water level of 60cm, fertilize, and cultivate the water in the pond; the water depth is 1.7-1.8m, and the breeding pond is preferably an estuary Area water pond. According to the situation of algae reproduction, appropriate fertilization can be applied to cultivate the pool water. The muddy bottom is conducive to the burial and overwintering of blue crabs.

[0026] 2) Select mating female crabs after the beginning of autumn and female crabs that have been confirmed to have mated. Since the beginning of autumn is the mating season of blue crabs, you can choose the mating female crabs after the beginning of autumn. The s...

Embodiment 3

[0032] 1) Preparation before breeding: Drain the water in the breeding pond with muddy bottom and expose it to the sun until the bottom mud is cracked. Before stocking, use quicklime to clear the pond. 12 to 14 days before stocking, use 60kg of quicklime to clear the pond per mu to kill Kill fish and harmful microorganisms, improve the bottom quality of the breeding pond, filter the water with a 60-mesh water inlet mesh, filter the water at a water level of 60cm, fertilize, and cultivate the water in the pond; the water depth is 1.9-2.0m, and the breeding pond is preferably an estuary Area water pond. According to the situation of algae reproduction, appropriate fertilization can be applied to cultivate the pool water. The muddy bottom is conducive to the burial and overwintering of blue crabs.

[0033] 2) Select mating female crabs after the beginning of autumn and female crabs that have been confirmed to have mated. Since the beginning of autumn is the mating season of blu...

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Abstract

The present invention provides a blue crab breeding method in autumn and winter, which relates to a blue crab breeding method. The present invention provides a blue crab breeding method in autumn and winter integrating monosex cultivation, overwintering, fattening and reddening. The method described by the present invention comprises: draining water in cultivation pool and insolating bottom mud to crazing, cleaning pool by quicklime before stocking; filtering water by a water feeding screen, fertilizing and developing the pool water, selecting copulated mother crab and confirmed copulated female crab after autumn begins; selecting the stocking density of 2.2 to 4.5 per m<2>; selecting cultivation time from the beginning of October to the beginning of November, mating season to next year last ten-day period of January to the beginning of February, and culture-cycle of 3 to 3.5 months; and the method described by the present invention is characterized in that the water quality requires that the temperature is 5 to 30 DEG C, the salinity is 6 to 15, the pH is 7.8 to 8.5, the transparence is 30 to 40cm; the water changing amount per day is 20 percent to 50 percent, water added quicklime is splashed and spread into the whole pool after dissolved every ten to twenty days, the amount of quicklime is 0.02 to 0.03 kg / m<3> pool water; and the bait is fed one time every day.

Description

technical field [0001] The invention relates to a method for cultivating blue crabs, in particular to a method for cultivating fattening cream from newly mated female crabs in autumn and winter. Background technique [0002] Scylla paramamosain Estampador (1949), commonly known as blue crab, is a species with large size, fast growth, strong adaptability, delicious meat, rich nutrition, resistance to dry dew, easy transportation, nourishing and strengthening, and high economic value. It is an important marine cultured crab with special characteristics, which is favored by domestic and foreign producers and consumers. It is known as "sea ginseng". It is not only a traditional famous dish and delicious food in my country, but also a good tonic. my country has a breeding history of more than 100 years. As early as 1890, Humen, Dongguan City, Guangdong Province began to fatten and raise blue crabs. By the 1960s and 1970s, blue crab farming had developed greatly in the southeast c...

Claims

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Application Information

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IPC IPC(8): A01K61/00A01K63/04
CPCY02A40/81
Inventor 林琼武王桂忠叶海辉李少菁艾春香陈学雷
Owner XIAMEN UNIV
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