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High-density layered intensive cultivation method for giant freshwater prawns

A technology of Macrobrachium rosenbergii and cultivation methods, applied in fish farming, climate change adaptation, application, etc., can solve the problems of mutual disability and high disease incidence of Macrobrachium rosenbergii, ensure the survival rate of adult shrimp, reduce the probability of disease, Disease reduction effect

Active Publication Date: 2017-06-09
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the problems of mutual destruction and high incidence of diseases of Macrobrachium rosenbergii existing in existing culture methods, the present invention provides a high-density layered intensive culture method of Macrobrachium rosenbergii, which is a method that can significantly increase the intensive culture yield of Macrobrachium rosenbergii and farming methods to reduce disease

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  • High-density layered intensive cultivation method for giant freshwater prawns

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Embodiment 1

[0037] The Macrobrachium rosenbergii high-density layered intensive cultivation method described in the present embodiment comprises the following cultivation steps:

[0038] At the beginning of April, choose a pond with an area of ​​5 mu, 70m in length and 50m in width. The bottom of the pond is flat, and the silt should be removed as much as possible, leaving sandy soil. The height from the bottom of the pond to the ground level is 1.8m. of the slope. After the soil becomes dry (no trace of water), inject 40cm of fresh water, and disinfect with 100kg quicklime per mu; set up two 2kw aerators per 2.5 mu, and set up a total of four aerators. With each aerator as the center, a sterilized Macrobrachium rosenbergii habitat device is placed 5m away from the center, and 5 Macrobrachium rosenbergii habitat devices are installed around each aerator, and a total of 20 Macrobrachium rosenbergii habitat devices are installed in 5 mu of ponds. indivual.

[0039]Ten days after the quick...

Embodiment 2

[0051] The Macrobrachium rosenbergii high-density layered intensive cultivation method described in the present embodiment comprises the following cultivation steps:

[0052] In mid-April, choose a pond with an area of ​​8 mu, 90m in length and 60m in width. The bottom of the pond is flat, and the silt should be removed as much as possible, leaving sandy soil. of the slope. After the soil becomes dry (no trace of water), inject 60cm of fresh water, and disinfect with 150kg quicklime per mu; set up one 2kw aerator per 2 mu, and set up 4 aerators in total. With each aerator as the center, a sterilized Macrobrachium rosenbergii habitat device was placed 8m away from the center, and 6 Macrobrachium rosenbergii habitat devices were installed around each aerator, and a total of 24 Macrobrachium rosenbergii habitat devices were installed in 8 mu of ponds. indivual.

[0053] Ten days after the quicklime disinfected the pond, that is, by the end of April, the pond was filled with wat...

Embodiment 3

[0065] The Macrobrachium rosenbergii high-density layered intensive cultivation method described in the present embodiment comprises the following cultivation steps:

[0066] In mid-April, choose a pond with an area of ​​6 mu, 80m in length and 50m in width, with a flat bottom, remove as much silt as possible, and leave sandy soil. of the slope. After the soil becomes dry (no trace of water), inject 50cm of fresh water, and disinfect with 130kg of quicklime per mu; set up a 2kw aerator per 2 mu, and set up a total of 3 aerators. Each aerator is the center, and a sterilized giant macrobrachium rosenbergii habitat device is installed 7m away from the center. Four macrobrachium rosenbergii habitat devices are installed around each aerator, and a total of 12 macrobrachium rosenbergii habitat devices are installed in a 5-acre pond. .

[0067] Nine days after the quicklime disinfected the pond, that is, until the end of April, the pond was filled with water to 1.7m, and the water ...

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Abstract

The invention discloses a high-density layered intensive cultivation method for giant freshwater prawns. The method comprises the following steps: 1) preparing an aquaculture pond; 2) stocking shrimp larvae; 3) culturing fishes in a mixed form; 4) feeding baits and applying a fertilizer; and 5) fishing. According to the invention, a giant freshwater prawn inhabiting device is arranged in the aquaculture pond. The device is composed of a PVC pipe 1, a wire rope 2, a bamboo chip 3, a buckle 4, meshes 5, a floating ball 6, a weight 7, a water hyacinth 8 and a catkin strip 9. Three layers of meshes are arranged and served as inhabiting beds of the giant freshwater prawns; under the condition that the culture area is not increased, the inhabiting space of the giant freshwater prawns is increased and the mutual interference of the giant freshwater prawns is reduced, so that the culturing density is indirectly increased, the yield is increased and the yield per mu can reach up to above 1100kg; the yield is two times of the yield of a common culturing method; the disease probability of the giant freshwater prawns is greatly reduced; and the survival rate can reach up to above 85%.

Description

technical field [0001] The invention belongs to the field of aquaculture, and in particular relates to a high-density layered intensive culture method for Macrobrachium rosenbergii. Background technique [0002] Macrobrachium rosenbergii is an economical shrimp with fast growth, wide recipes and rich nutrition. Its shell is thin and fat, its meat is fresh and tender, delicious in taste and rich in nutrition. In addition to the flavor of common freshwater prawns, the carapace of mature Macrobrachium rosenbergii is full of gonads, which has a special delicious taste similar to crab roe. It is in great demand in domestic and foreign markets, and the supply exceeds demand. Its breeding mode is increasingly large-scale and industrialized. However, the current high-intensity intensive culture of Macrobrachium rosenbergii has not solved the problem of killing each other of Macrobrachium rosenbergii, failed to achieve good breeding results, and has been plagued by the development o...

Claims

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Application Information

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IPC IPC(8): A01K61/59A01K61/10A01K61/60
CPCA01K61/00Y02A40/81
Inventor 储张杰何竺柳傅冠学牟毅赵波高阳鲍华江朱晶婷
Owner ZHEJIANG OCEAN UNIV
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