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Method for artificially breeding hairy crabs

A hairy crab, artificial technology, applied in fish farming, application, climate change adaptation, etc., can solve the problems of poor quality and low survival rate of hairy crabs, achieve the effect of improving quality, increasing survival rate, and preventing crab shells from being too hard

Inactive Publication Date: 2016-05-25
SUZHOU LIANHUADAO ECO AGRI PROFESSIONAL COOP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of poor quality and low survival rate of existing hairy crabs, the present invention proposes an artificial breeding method of hairy crabs with greatly improved survival rate and quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for artificially cultivating hairy crabs, comprising the following steps:

[0020] (1) Set up a pond. According to the number of cultured hairy crabs, select a pond of appropriate size, clean and disinfect the bottom of the pond many times, and build a small slope at the bottom of the pond for the crabs to move around and breathe out of the water, pour the pond into river water, and the water quality in the pond is hard The control is below 400mg / L. Aquatic plants, fish fry, and shrimp are cultivated in the pond. The breeding area of ​​aquatic plants, fish fry, and shrimp in the pond accounts for 15% of the pond area. There is an aerator in the pond.

[0021] (2) Young crabs are stocked. Young crabs need to be sterilized before stocking, and the stocking density is 600 / mu.

[0022] (3) Hairy crab feeding. In the early stage of feeding, feed once every 8 hours, and the daily feeding amount is 60% of the body weight of young crabs, and the feeding feed is anim...

Embodiment 2

[0026] A method for artificially cultivating hairy crabs, comprising the following steps:

[0027] (1) Set up a pond. According to the number of cultured hairy crabs, select a pond of appropriate size, clean and disinfect the bottom of the pond many times, and build a small slope at the bottom of the pond for the crabs to move around and breathe out of the water, pour the pond into river water, and the water quality in the pond is hard The control is below 400mg / L. Aquatic plants, fish fry, and shrimp are cultivated in the pond. The breeding area of ​​aquatic plants, fish fry, and shrimp in the pond accounts for 15% of the pond area. There is an aerator in the pond, and snails are cultivated on the small slope. An escape net is provided above the pond.

[0028] (2) Young crabs are stocked. Young crabs need to be sterilized before stocking, and the stocking density is 600 / mu.

[0029] (3) Hairy crab feeding. In the early stage of feeding, feed once every 8 hours, and the da...

Embodiment 3

[0033] A method for artificially cultivating hairy crabs, comprising the following steps:

[0034] (1) Set up a pond. According to the number of cultured hairy crabs, select a pond of appropriate size, clean and disinfect the bottom of the pond many times, and build a small slope at the bottom of the pond for the crabs to move around and breathe out of the water, pour the pond into river water, and the water quality in the pond is hard The control is below 400mg / L. Aquatic plants, fish fry, and shrimp are cultivated in the pond. The area of ​​aquatic plants, fish fry, and shrimp in the pond accounts for 25% of the pond area. There is an aerator in the pond, and snails are cultivated on the small slope. An escape net is provided above the pond.

[0035] (2) Young crabs are stocked. Young crabs need to be sterilized before stocking, and the stocking density is 800 / mu.

[0036] (3) Hairy crab feeding. In the early stage of feeding, feed once every 8 hours, and the daily feedi...

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Abstract

The invention discloses a method for artificially breeding hairy crabs. The method comprises the following steps of pond arranging, stocking of young crabs, hairy crab feeding, day-to-day managing and catching. According to the method for artificially breeding the hairy crabs, a small slope is arranged at the bottom of a pond, and the problem that on the condition that oxygen supply is insufficient, the survival rate of the hairy crabs is low due to the fact that oxygen is lacked, and the hairy crabs die is solved; meanwhile, the activity amount of the hairy crabs is increased, and the quality of the hairy crabs is improved; according to different periods of the hairy crabs, an appropriate amount of feed is put into the pond, and composition of the feed is changed, so that the survival rate of the hairy crabs in the early period is increased, the hairy crabs rapidly grow up and gain weight in the middle period, and it is guaranteed that the hairy crabs are large in size in the late period; due to the fact that hairy crabs with diseases are isolated, cross infection is prevented, and the quality of the hairy crabs is improved; by controlling the water hardness, the situation that shells of the hairy crabs are overhard is prevented, and the purchasing power of clients is improved.

Description

technical field [0001] The invention belongs to the field of aquaculture, and particularly designs a method for artificially cultivating hairy crabs. Background technique [0002] Hairy crab is a well-known delicacy, loved by most people. It is widely distributed in lakes along the north and south coasts in China, among which the Yangtze River system has the largest output and extremely delicious taste. Crabs contain more vitamin A, which is helpful for skin keratinization; it can also supplement calcium for children's rickets and old people's osteoporosis. [0003] At present, due to the increasing market demand, there are more and more artificial breeding of hairy crabs, but there are still many deficiencies in the breeding technology of hairy crabs, and people still lack the experience in breeding hairy crabs. Existing breeders use industrial compound feed and blindly use drugs, resulting in poor quality and low survival rate of hairy crabs. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 张春林徐振华
Owner SUZHOU LIANHUADAO ECO AGRI PROFESSIONAL COOP
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