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Environment-friendly freshwater shrimp breeding method

An environment-friendly, aquaculture technology, applied in chemical instruments and methods, botanical equipment and methods, fish farming, etc., can solve problems such as increasing the cost of aquaculture, reducing the quality of aquatic products, increasing the value of aquatic products, and enhancing self-purification. ability, the effect of improving the quality of shrimp

Active Publication Date: 2020-05-19
NANJING INST OF GEOGRAPHY & LIMNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual breeding process, fishermen ignore the importance of submerged plants and replace them with a large number of antibiotics and artificial aeration, which undoubtedly increases the cost of breeding and reduces the quality of aquatic products.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The breeding pond used in the present invention is rectangular, the aspect ratio is 4-5:1, the water depth is 1-1.5m, and the slope is 1:3.

[0032] After the freshwater shrimp culture is over, the winter-type species of submerged plants Spirulina and Elodea are planted, and the planting time is in the middle and late November. The planting method of submerged plants is the clay-wrapped cultivation method, the propagules of Smilax spp. are winter buds, and the propagules of Elodea are fragments, and the planting density is 20 propagules per square meter. The planting ratio of the two plants is 1:1~2. The planting coverage is 80-90%, basically covering the entire breeding pond.

[0033] In mid-April of the second year, the Spirulina and Elodea were salvaged, and only 4 strip-shaped plant areas were kept. The salvage method is direct harvesting with a sickle, and the harvesting position is the upper 15-20cm of the bottom mud. The strip-shaped patch 2 of the preserved w...

Embodiment 2

[0039]The method described in Example 1 was obtained in an aquaculture field in Wuhu City, Anhui Province to cultivate freshwater shrimp.

[0040] The breeding pond is rectangular, 50m long and 10m wide.

[0041] In mid-to-late November, two winter-type submerged plants were planted after the freshwater prawns were cultured, and the planting ratio of the two plants was 1:1. Planting coverage is 80%.

[0042] In mid-April of the second year, described Smilax and Elodea were salvaged, and only 3 strip-shaped plant patches were kept at the quarter point of the long side of the pond. The salvage method is direct harvesting with a sickle, and the harvesting position is the upper 15cm of the bottom mud. The patch size is 1m*6m.

[0043] In late April, that is, one week after the winter-type submerged plants were salvaged, the summer-type submerged plants P. Plant planting ratio is 1:1. The size of each summer-type submerged plant strip patch is 1m*6m, and there are 4 patches in...

Embodiment 3

[0049] In an aquaculture field in Liyang City, Jiangsu Province, the method described in Example 1 was used to cultivate freshwater shrimp.

[0050] The breeding pond is rectangular, and the pond is 40 meters long and 10 meters wide.

[0051] In mid-to-late November, two winter-type submerged plants, Smilax and Elodea, were planted after the freshwater shrimp breeding, and the planting ratio of the two plants was 1:2. Planting coverage is 90%.

[0052] In mid-April of the second year, described Smilax and Elodea were salvaged, and 4 strip-shaped plant patches were kept at the five equal points of the long side of the pond. The salvage method is direct harvesting with a sickle, the harvesting position is the upper 20cm of the bottom mud, and the patch size is 1m*8m.

[0053] In late April, that is, one week after the winter-type submerged plants were salvaged, the summer-type submerged plants P. Plant planting ratio is 1:2. The size of each summer-type submerged plant strip...

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Abstract

The invention relates to an environment-friendly freshwater shrimp breeding method. In a breeding pond, winter type submerged plants are planted, the winter type submerged plants are partially harvested before dormancy, and at least two winter type submerged plant strip-shaped spot blocks are reserved; summer type submerged plant strip-shaped spot blocks are planted, and then freshwater shrimps are put to be bred; the winter type submerged plant residues are collected, and then plant bionic plant strip-shaped spot blocks are planed; and after the aquaculture is finished, the submerged plant residues are collected, and the bionic submerged plants are recovered. According to the method, by reference to an aquaculture period, a suitable aquatic plant type is screened to configure the breedingpond, difference between species in the vigorous growth period of the submerged plants is relatively large, crop rotation is carried out by utilizing the difference between species of the submerged plants, and the water quality of the pond is purified all the year; in addition, plant combination is performed according to the growth requirements of the aquatic products, and the bionic submerged plants are further matched, so that the self-cleaning capability of the water body of the pond can be enhanced, and the quality of the freshwater shrimps can be improved; and moreover, the pond almost does not discharge breeding water to the outside, and the pond is environment-friendly.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to an environment-friendly freshwater shrimp cultivation method. Background technique [0002] With the development of my country's freshwater aquaculture industry, the aquaculture form is also changing from extensive aquaculture to intensive aquaculture, but intensive aquaculture also brings pollution to the aquaculture water. In the process of aquaculture, operators put fermented fertilizers and feeds into relatively closed water bodies, and the feed residues and fish and shrimp feces volatilize and decompose a large amount of harmful substances under the action of microorganisms, resulting in the deterioration of water bodies. Water pollution promotes the proliferation of pathogens, which in turn causes frequent occurrence of various aquatic animal diseases, and the frequency of antibiotic use increases accordingly. The uncontrolled use of antibiotics not only increases th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A01G22/00C02F3/32
CPCA01K61/59A01G22/00C02F3/327Y02A40/81
Inventor 黄蔚陈开宁汪琪李恒鹏刘成
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY