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Ecological alternate culture method of cherax quadricarinatus and procambarus clarkii

A technology of Crayfish and Red Crayfish, which is applied in the field of ecological aquaculture, can solve the problems of no shrimp for sale, low land utilization rate and the like, and achieve the effects of less competitive pressure, improved benefits and good application prospects.

Pending Publication Date: 2021-04-16
JIANGSU AGRI ANIMAL HUSBANDRY VOCATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the end of May to June is the season when a large number of Procambarus clarkii are on the market, and the price is cheap. In other months, the price of shrimp is high, but there is no shrimp for sale.
Pure Crayfish farming, the land is basically idle for 6 months from August to February of the next year, and the land utilization rate is low

Method used

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  • Ecological alternate culture method of cherax quadricarinatus and procambarus clarkii
  • Ecological alternate culture method of cherax quadricarinatus and procambarus clarkii
  • Ecological alternate culture method of cherax quadricarinatus and procambarus clarkii

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Experimental program
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Effect test

Embodiment 1

[0024] The breeding pond is a flat-bottomed pond of 22 mu, equipped with a nano-aeration machine with a power of 4 KW Roots blower, and 60 aeration disks with a diameter of 1 meter are evenly distributed in the pond. On December 10, 2 tons of quicklimed water was evenly sprayed for disinfection treatment, and the pond was dried for more than 15 days. On February 10th, water began to enter. The water source came from the river outside the farm. The water inlet was filtered with a 50-meter-long, inner mesh with an aperture of 80 mesh and an outer mesh with an aperture of 100 mesh. The first water intake 30 cm.

[0025] On February 13th, plant cold-resistant bitter grass and Elodea in the pond ring ditch, and plant the bitter grass in shallow water. Aquatic plants are planted in small clusters, in wide and narrow rows, with a spacing of 1 meter between wide rows. On February 18, the commercial tea seed cake and rotenone extract were used to clear the pond. On February 25, 429 ...

Embodiment 2

[0029]The breeding pond is a paddy field with a central height of 18 mu and a ring ditch around it, running north-south, and the area of ​​the ring ditch accounts for 10% of the total area. Equipped with 2 waterwheel aerators with a power of 1.5 kilowatts. After the rice is harvested, soak the fields in water. On January 20, the water was drained to a depth of 10 cm, and 500 kg of quicklime mixed with water was used to disinfect the ring ditch and sun-dry ponds.

[0030] On February 12, the water began to enter. The water source came from the river. The water inlet was filtered by a 40-meter-long two-layer sieve tulle bag with an inner mesh of 80 mesh and an outer mesh of 100 mesh. The first time the water was flooded to the platform.

[0031] On February 15th, cold-resistant bitter grass was planted on the edge of the ring ditch, and Elodea was planted in the ring ditch. Raise the water level until the submerged platform is 30 cm. On February 18, 200 jin of tea seed cakes ...

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Abstract

The invention discloses an ecological alternate culture method of cherax quadricarinatus and procambarus clarkii. The ecological alternate culture method comprises the steps that disinfection and pond drying are conducted 1-2 months before culturing, and water starts to enter 20-30 days before fry putting; 15-20 days before the fries are put, aquatic plants are transplanted, and pond cleaning medicine is used for killing wild trash fishes; procambarus clarkii larvae are put in when the aquatic plants start to take roots, and 100-300 kg / mu of snails are put in March to April to serve as basic bait; after the middle ten days of April, procambarus clarkii with the specification of 35 g or above is caught to be marketed, and procambarus clarkii with the specification of 25 g or above is caught to be marketed in May; after the water temperature is stabilized at 20 DEG C or above, cherax quadricarinatus seeds are put in; after June, more than 25 g of procambarus clarkii is continuously caught for sale; and more than 45 g of cherax quadricarinatus starts to be caught in August for sale. A culturing and separation mode is adopted, the situation that large and small shrimps kill each other is avoided, the problem of self-reproduction and self-breeding germplasm degeneration can also be avoided, the culturing effect is quite remarkable, and good application prospects are achieved.

Description

technical field [0001] The invention relates to the field of ecological cultivation, in particular to an ecological rotation cultivation method for crayfish and procambarus clarkii. Background technique [0002] Red Claw Crawfish ( Cherax quadricarinatus ), also known as four-ridge light-shelled crayfish, commonly known as Australian freshwater lobster, Australian freshwater small green dragon, Australian freshwater crayfish, etc. Wild species are distributed in northeastern Australia and southern New Guinea, and are currently one of the most valuable freshwater economic shrimps in the world. The individual size of Australian freshwater lobster is more than 3 times that of Procambarus clarkii (crayfish), and its growth rate is fast. It can grow to 100 grams within 3 months of breeding, which is 4-5 times that of Procambarus clarkii. Its meat taste is delicious, even better than that of Procambarus clarkii, so the market price is 60-80 yuan / jin, which is a high-end variety ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A01G22/00
CPCY02A40/81
Inventor 王建国吴娟王洲王权林阿朋朱宏庆马向晖戴传志顾中洋
Owner JIANGSU AGRI ANIMAL HUSBANDRY VOCATIONAL COLLEGE
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