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A method for cultivating Penaeus vannamei in a small water body indoors at the coarse stage

A breeding method and technology of white prawns, which are applied in chemical instruments and methods, fish farming, biological water/sewage treatment, etc., can solve the problems of low survival rate and slow growth rate, and achieve improved survival rate, fast growth rate, The effect of improving feed conversion and deposition rate

Active Publication Date: 2019-07-19
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for cultivating Penaeus vannamei in indoor small water bodies at the rough stage in order to overcome the problems of low survival rate and slow growth rate in the rough stage of Penaeus vannamei in the prior art

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  • A method for cultivating Penaeus vannamei in a small water body indoors at the coarse stage

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A kind of indoor small water body high-efficiency cultivation method of vannamei white shrimp standard coarse stage, comprises the following steps:

[0039] S1. Disinfection of container and water body: Before putting shrimp seedlings in, first disinfect the tank body and water body with a capacity of 0.2 tons. The tank body is first soaked and scrubbed with oxalic acid, rinsed and injected with fresh sea water, and disinfected with strong chlorine , After standing for 2 days, use the residual chlorine kit to detect the residual chlorine content in the water body, and adjust to a safe concentration with sodium thiosulfate (big soda).

[0040] S2. Select healthy and disease-free shrimp seedlings: In the process of seedling selection, we select the larvae that have changed from the mysis stage to the larval stage for 5 days, and observe them with the naked eye. Blow air with your mouth in a small white bowl, and observe the intestines and liver of shrimps that can swim ag...

Embodiment 2

[0045] A method for efficiently cultivating Penaeus vannamei in small water bodies at the coarse stage, comprising the following steps: the cultivating method is the same as in Example 1, and the feed used for cultivating is the feed of formula 2 in Table 1. Simultaneously set up the control group identical with embodiment 1.

[0046] Under the same initial body weight (initial body weight 2.3 mg), the breeding mode adopted in the present invention is compared with the breeding mode (contrast) of general traditional farms, and the weight gain rate has increased by 23.3%, and the survival rate has increased by 49% ( The WG of the feed of the present invention is 9125.5, and the WG of the commercial feed is 7400; the survival rate of the feed of the present invention is 89.4%, and the survival rate of the commercial microparticle feed is 60%).

[0047] In the mid-term of cultivation, the concentration of ammonia nitrogen and nitrite in the water under the traditional cultivation...

Embodiment 3

[0049] A method for high-efficiency culture of Penaeus vannamei in a small indoor water body at the coarse stage, comprising the following steps: the culture method is the same as in Example 1, and the feed used for culture is the feed of formula 3 in Table 1. Simultaneously set up the control group identical with embodiment 1.

[0050] Under the same situation of initial body weight (initial body weight 2.3mg), compared with the breeding pattern (contrast) of general traditional farm, the breeding pattern adopted in the present invention has increased the weight gain rate by 25.9%, and the survival rate has improved by 48.25% ( The WG of the feed of the present invention is 9318.2, and the WG of the commercial feed is 7400; the survival rate of the feed of the present invention is 88.95%, and the survival rate of the commercial microparticle feed is 60%).

[0051] In the mid-term of cultivation, the concentration of ammonia nitrogen and nitrite in the water under the traditio...

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Abstract

The invention provides an indoor small water body cultivating method for South American white shrimps at temporary cultivation stage for thickening. The method comprises following steps: S1. disinfecting a container and water body, wherein the water carrying capacity of the container is 0.1 to 0.5 ton; S2. selecting healthy shrimp seeds; S3. temporary cultivating for thickening: the cultivating period is 20 to 30 days, water is not changed at the first eight days during cultivation, and EM bacterium is spread in the container every other day, after the first eight days, water is changed every day and EM bacterium is spread after water changing; shading treatment is carried out at the first eight days and cultivation under natural light is carried out after the first eight days; during the cultivation process, feeding for 12 times at schedule time is carried out daily and the intervals of 90 to 120 minutes are between each feeding; 3 to 5 days before the end of the temporary cultivating for thickening, vitamin C solution is spread daily for strengthened treatment for the shrimp seeds. The survival rate of shrimp seeds obtained by the temporary cultivating method for thickening is high and the growth is fast.

Description

technical field [0001] The invention relates to the technical field of aquatic product cultivation, in particular to a method for cultivating Penaeus vannamei in a small water body at the coarse stage. Background technique [0002] In the late 1980s, Penaeus vannamei was introduced into my country. It is popular among shrimp farmers due to its fast growth and strong disease resistance. It is currently an important seawater and brackish water cultured shrimp in my country. The breeding range is popular all over the country and mainly distributed In the southern coastal areas, because of its fast growth rate, high feed efficiency and large economic benefits, it has become the main economic source for farmers to increase production and income, and has broad market prospects. All shrimps have to go through the metamorphosis stage in the early growth stage before they can be cultured. For the current farming situation, it is not feasible to directly connect the process of metamorp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/59C02F3/34A23K50/80A23K20/174A23K10/22A23K20/147A23K10/18A23K20/163A23K20/158A23K20/20A23K20/142A23K20/105A23K20/22A23K20/26
CPCC02F3/34Y02A40/81
Inventor 刘永坚田丽霞方蔚平牛津
Owner SUN YAT SEN UNIV
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