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Ecological breeding method for interbreeding Australian freshwater lobster and Eriocheir sinensis

A technology for Chinese mitten crab and freshwater crayfish, which is applied in fish farming, application, climate change adaptation, etc., can solve problems such as production reduction and lower survival rate of river crabs, so as to improve survival rate, increase survival rate, and increase breeding benefits Effect

Pending Publication Date: 2019-06-14
JIANGSU AGRI ANIMAL HUSBANDRY VOCATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Procambarus clarkii is more ferocious and often eats crab seedlings, which leads to a decrease in the survival rate of river crabs and even a reduction in production

Method used

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  • Ecological breeding method for interbreeding Australian freshwater lobster and Eriocheir sinensis
  • Ecological breeding method for interbreeding Australian freshwater lobster and Eriocheir sinensis
  • Ecological breeding method for interbreeding Australian freshwater lobster and Eriocheir sinensis

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Two 12-acre Chinese mitten crab breeding ponds are surrounded by a ring ditch and a platform in the middle. Each pond is equipped with a nano aerator with a power of 3KW Roots blower. In October, before the crayfish dig holes, the pond is dried and all river crabs and crayfish are caught. One of the ponds was treated with 1200 jin of quicklime and 150 jin of tea seed cake, and the pond was dried. Another pond retains Procambarus clarkii for natural overwintering. On February 20 of the following year, the two ponds were filled with water. The water came from the river outside the farm. The water inlet was filtered with a 20-meter long 100-mesh sieve tulle bag, and the water would submerge the ring ditch.

[0020] On February 23, cold-resistant bitter grass was planted on the ring ditch of the two ponds. After release on March 2, Chinese mitten crabs were put in. The weight of the crabs was 1-8 grams, with an average of 3.5 grams per fish. The stocking density was 800 / ...

Embodiment 2

[0030] There are 2 Chinese mitten crab breeding ponds, each of 10 mu, surrounded by a ring ditch and a platform in the middle. Each pond is equipped with a nano-aeration machine with a power of 2KW Roots blower. Each pond is treated with 1000 catties of quicklime and 100 catties of tea seed cake, and the pond is dried for 15 days. On March 5, the two ponds were filled with water. The water came from the river outside the farm. The water inlet was filtered with a 20-meter-long 100-mesh sieve tulle bag, and the water would submerge the ring ditch.

[0031] On March 8th, Hydrilla verticillum was planted in the ring ditch, and after release on March 12th, the Chinese mitten crabs were put in. The body weight of the crabs was 1-8 grams, and the average weight was 4.06 grams. The stocking density was 1200 / mu and 900 Only / mu. On March 15, 10 cm of water was inflowed, which just submerged the central platform, and Elodea was planted on the platform. On March 18, 620 catties / mu of sna...

Embodiment 3

[0040]The breeding pond is a Chinese mitten crab pond with a central height of 20 acres and a ring ditch around it. It runs north-south. The pond is equipped with two nano-aeration systems with a power of 3KW Roots blowers. Drain the pond water before the end of October of the previous year and catch clean Procambarus clarkii. Before the water injection in the following year, 2000 kg of quicklime and 300 catties of tea seed cake were used to clear the pond, and the pond was dried for more than 15 days. On February 18, water began to enter. The water source came from the river. The water inlet was filtered with a 40-meter-long, 100-mesh sieve tulle bag. The first time the water flooded the platform by 15 centimeters.

[0041] On February 26, Elodea was planted on the platform. After release on March 5, Chinese mitten crabs were put in. The stocking density of the crabs was 1000 / mu. On March 14, 400 kg / mu of snails were released. The Chinese mitten crab feed was fed twice a da...

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Abstract

The invention discloses an ecological breeding method for interbreeding Australian freshwater lobster and Eriocheir sinensis, which is characterized by comprising the following steps: (1) cleaning andsterilizing a pond, and starting to feed water after sunning the pond for 10 to 15 days; (2) planting bitter grass and sporochloa rosea in circumferential ditches on the periphery of the pond, and planting eolian grass on a middle platform; then putting Eriocheir sinensis in February to March, wherein the density is 600-1200 per mu; putting base feed snail in March, 200-400 kg / mu; (3) after May,the water temperature in the pond is stabilized above 20 DEG C, putting the freshwater lobster fries of Australia in the pond, and the density is 500-1500 per mu, The specification of the fries is more than 3g; (4) feeding Eriocheir sinensis feed once a day at 7:00 and 17:00 respectively, wherein the feeding amount per day is 5%-8% of the weight of the Eriocheir sinensis; after July, opening the aerator at 22:00-6:00 every day. According to the breeding method, the survival rate of the Eriocheir sinensis is improved, the yield per mu is improved, and the economic benefit is improved.

Description

technical field [0001] The invention belongs to the field of aquaculture, in particular to an ecological breeding method for nesting Australian freshwater crayfish and Chinese mitten crabs. Background technique [0002] The scientific name of Australian freshwater lobster is Cherax quadricarinatus, also known as four-ridge light shell crayfish. The wild species are distributed in northeastern Australia and southern New Guinea. It is one of the more 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 of freshwater crayfish. Australian crayfish were introduced into my country in 1992. They were fi...

Claims

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Application Information

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IPC IPC(8): A01K61/59
CPCY02A40/81
Inventor 王建国王权王洲单喜双朱峰童震赵杰
Owner JIANGSU AGRI ANIMAL HUSBANDRY VOCATIONAL COLLEGE
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