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Mixed breeding method of pearls and river crabs

A mixed breeding and river crab technology, which is applied in fish farming, climate change adaptation, animal feed, etc., can solve problems such as separate breeding, and achieve the effects of protecting the water environment, improving efficiency, and reducing waste

Inactive Publication Date: 2011-10-19
DATONG LAKE TIANHONG FISHERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two farmed species have made positive contributions to solving the three rural issues, but they are currently farmed separately

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: select the pond that area is 20 mus, upgrade the pond to 1.8 meters deep, and build anti-escape facilities around the pond, plant aquatic plants in the pond, set pearl clam hanging cultivation facilities in the open water area without aquatic plants, and cultivate At the bottom of the pool, set up a DN15 inflatable pipe with a diameter of 5cm from the bottom of the pool, lay one at an interval of 5m, and make a small hole with a diameter of 4mm at an interval of 5m on each pipe. Dead and airtight; stocking quantity of river crabs: 800 crabs / mu with a specification of 40-100 / jin; 300 / mu pearl mussels hanging for 1-2 instar mussels; another set of breeding: a total stocking specification of 100 - 200 silver carps of 150g / tail, 1,000 yellow catfish of 40-60g / tail, and 1,000kg of screws; in May-September of the annual breeding season, aerate and increase oxygen for 1 hour a day to maintain the dissolved oxygen content in the water at 4mg / L or above; other dai...

Embodiment 2

[0013] Embodiment 2: select the pond with an area of ​​100 mu, upgrade the pond to a depth of 2 meters, and build anti-escape facilities around the pond, plant aquatic plants in the pond, and set pearl mussel hanging cultivation facilities in the open water area without aquatic plants. At the bottom of the pool, erect a DN40 inflatable pipe with a diameter of 20cm from the bottom of the pool, lay one at an interval of 10m, and make a small hole with a diameter of 2mm at an interval of 1m on each pipe. Dead and airtight; stocking quantity of river crabs: the specification is 40-100 / jin, 1000 crabs / mu, pearl mussels hanging 250 / mu for 3-5 instar mussels; 2,000 silver carps of 100-150g / tail, 8,000 yellow catfish of 40-60g / tail, and 10,000kg of screws; in May-September of the annual breeding season, inflate and oxygenate for 5 hours a day to keep the dissolved oxygen content in the water at 6mg / L above; other daily management is the same as conventional farming. The test shows t...

Embodiment 3

[0014] Embodiment 3: select the pond that area is 300 mus, upgrade the pond to 2.5 meters deep, and build anti-escape facilities around the pond, plant aquatic plants in the pond, set pearl clam hanging cultivation facilities in the open water area without aquatic plants, in cultivation At the bottom of the pool, set up a DN32 inflatable pipe with a diameter of 15cm from the bottom of the pool, lay one at an interval of 15m, and make a small hole with a diameter of 5mm at an interval of 5m on each pipe. Dead and airtight; stocking quantity of river crabs: 900 crabs / mu with a specification of 40-100 / jin, pearl mussel hanging quantity: 350 mussels / mu for 1-2 ages; another set of breeding: a total stocking specification of 6,000 silver carps of 100-150g / tail, 24,000 yellow catfish of 40-60g / tail, and 30,000kg of screws; in May-September of the annual breeding season, inflate and oxygenate for 3 hours a day to maintain the dissolved oxygen content in the water body at 8mg / L above...

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Abstract

The invention discloses a breeding method of pearls and river crabs. The breeding method includes the steps as follows: selecting a pond with area of 20-500 mu, upgrading the depth to 1.8-2.5 meters, erecting inflation pipelines with diameter of DN15-40 at a distance of 5-20cm from the bottom of the pond, arranging one pipeline at every interval of 5-15m and making a small hole with diameter of 2-5mm at every interval of 1-5m on every pipeline, wherein each air inlet end is connected with an oxygen adding device while the tail end is sealed tightly. For the stocking quantity of the river crabs, the number of juvenile crabs in per mu specification of 40-100 pieces / catty does not exceed 1200, and preferably, 800-1000 pieces; for suspension breeding quantity of the margaritana, the number of margaritana of 1-2 years old does not exceed 400, and preferably, 300-350 pieces; or the number of margaritana of 3-5 years old does not exceed 350, and preferably, 200-250 pieces; during May-September in the busy season of every year, inflation for adding oxygen is conducted for 1-5 hours every day, so that the content of dissolved oxygen in water body is kept to above 4mg / L; and the daily management of the breeding method is different from that of the conventional breeding. Combining the breeding of the two special aquatic products, namely pearls and river crabs, the breeding method creates high economical, biological and social benefits.

Description

technical field [0001] The invention relates to a new method of aquaculture, in particular to a method for mixed cultivation of pearl river crabs, which belongs to the technical field of aquaculture. Background technique [0002] The scientific name of river crab is Chinese mitten crab, which is a rare freshwater product. It is delicious, nutritious and has high economic value. It is a unique species in my country and has a large amount of breeding at present. Since freshwater pearl culture was reintroduced from Japan in the early 1960s, it has developed rapidly in my country, ranking first in the world, accounting for 95% of the world's total. These two breeds have made positive contributions to solving the three rural issues, but they are currently farmed separately. Contents of the invention [0003] Aiming at the deficiencies in the above-mentioned prior art, the present invention aims to provide a mixed culture method for pearl river crabs that combines the cultivati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A01K63/04A23K1/18A23K10/26A23K50/80
CPCY02A40/81
Inventor 杨品红王文彬李应森
Owner DATONG LAKE TIANHONG FISHERY
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