Method for culturing penaeus vannamei in cement pool by means of microecological preparations

A micro-ecological preparation, cement pond technology, applied in application, fish farming, climate change adaptation, etc., can solve the problems of unreachable bacterial count, bacterial death, and inability to achieve, reduce the bait coefficient, improve Growth performance, the effect of increasing the rate of weight gain

Inactive Publication Date: 2017-03-22
南通维尔思水产科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the general method adopted for cultivating prawns in cement ponds and putting in probiotics is to regularly sprinkle probiotics in the pond, but because the water in the pond does not contain the medium components required for probiotics, the probiotics put in It often fails to reach the number of bacteria required to treat ammonia nitrogen in water, and too much probiotics can easily cause the death of bacteria and fail to achieve its due effect

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  • Method for culturing penaeus vannamei in cement pool by means of microecological preparations
  • Method for culturing penaeus vannamei in cement pool by means of microecological preparations
  • Method for culturing penaeus vannamei in cement pool by means of microecological preparations

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Embodiment 1

[0025] As shown in Figures 1 and 2, this embodiment provides a cement pond for cultivating Penaeus vannamei. Its structure is: a double-stage drainage and sewage device is set in the center of the cement pool, and an inflatable pipe is provided around the bottom of the pool; among them, the double-stage drainage and sewage device includes a drainage device and a sewage device; the drainage device is a drainage inner pipe and a drainage pipe, and the drainage inner pipe is external. There is a drainage casing, and there is a gap between the drainage inner pipe and the drainage casing; the sewage discharge device is a sewage hole, and a bracket is set on one side of the sewage hole, and a pull rope is hung on the bracket, and a sewage ball is tied at one end of the pull rope. Fixed, the size of the drain ball matches the drain hole.

[0026] The side of the cement pool is a 5-meter-long square cut corner, the pool is 1 meter deep, and the water depth is 0.8 meters. Aquaculture ...

Embodiment 2

[0028] The present embodiment is divided into 2 groups: the relay cultivation microecological preparation group (abbreviated as the experimental group) in the cement pool of embodiment 1, and the traditional method added microecological preparation group (abbreviated as the control group) in the general cement pool. 3 repetitions per group. Generally, the cement pool is a central intubation tube, and the four sides of the intubation tube are punched and wrapped with sieve silk. Put 12,000 tails of Penaeus vannamei larvae of 0.6-0.8 cm in each pond. A total of 6 pools were used. (1) First put the lactic acid bacteria solution and EM bacteria solution (purchased from Wuxi Zhongyi Biotechnology Co., Ltd.) into 50L of fresh water at a ratio of 1:10 and 1:15 (volume ratio), respectively, and the concentration of the bacteria is not low. at 3×10 9 CFU / g and 1×10 8 CFU / g, while adding medium A respectively, the formula of medium A is: add 1500g rice bran and 1500g bran (purchased...

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Abstract

The invention relates to a method for culturing penaeus vannamei in a cement pool by means of microecological preparations. The method comprises the steps that 1, fresh water is inoculated with lactic acid bacteria and EM bacteria separately, culture media A are added respectively, culturing is conducted under the aerobic and normal-temperature conditions, filtering is conducted, fresh water and a culture medium B are added for culturing respectively, and then the microecological preparations are obtained; 2, in a water body in which the penaeus vannamei is cultured, the lactic acid bacterium microecological preparation with the concentration ranging from 75 ml / m<3> to 100 ml / m<3> is added every day, the EM bacterium microecological preparation with the concentration ranging from 50 ml / m<3> to 75 ml / m<3> is added every three days, the water temperature is controlled to be 28+ / 3 DEG C, the salinity is controlled to be 20-35, the pH is controlled to be 7.8-8.4, the dissolved oxygen is kept at 8 mg / L or above, and compound feed is put four times every day at 06:00, 11:00, 16:00 and 22:00 respectively. According to the method, inoculation culture is conducted in the culture pool by adopting the microecological preparations, the weight gain rate, the specific growth rate and the survival rate of the penaeus vannamei can be significantly increased, the feed coefficient can be significantly decreased, and the yield can be increased by 25% or above; in addition, the commercial penaeus vannamei is thoroughly cyan in body color, and after the commercial penaeus vannamei is cooked, the color is thoroughly red, and the color sense is enhanced.

Description

technical field [0001] The invention belongs to the field of large-scale cultivation of seawater shrimps, in particular to a method for cultivating Penaeus vannamei in a cement pond using microecological preparations. Background technique [0002] At present, the culture of Penaeus vannamei in China mainly adopts high-density culture with high-level ponds supplemented by plastic film, extensive culture with large water surface, and intensive factory culture. Several methods have their own advantages and disadvantages. Among them, industrialized intensive farming is more suitable for the development of coastal areas, has high feasibility and operability, and has gradually become the mainstream farming model. However, in cement ponds where prawns are cultured, in order to make the grown prawns have a higher astaxanthin content, a heat-preservation shed is often used to make the sunlight irradiate enough. Too much light on the surface of the water can lead to overgrowth of alg...

Claims

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Application Information

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IPC IPC(8): A01K61/59A01K63/04
CPCA01K63/04Y02A40/81
Inventor 曹宏军王鲁王洋
Owner 南通维尔思水产科技有限公司
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