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Method for cultivating seawater chlorella in cement pond and method for cultivating grouper fries

A technology of seawater chlorella and cement ponds, which is applied to the cultivation of seawater chlorella and grouper fry in cement ponds. It can solve the problems of fry instability, low survival rate, and weak fish fry, and achieve high output per unit water body, The effect of stable seedling emergence and small water system

Pending Publication Date: 2022-01-04
广东海元农业科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fries cultivated by this method are unstable, weak in physique, and have many diseases, and the outdoor fry must be transferred from the high-level pond to the indoor cement pond when the fry are still very young. This process causes the fry to enter the next growth environment. Low survival rate

Method used

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  • Method for cultivating seawater chlorella in cement pond and method for cultivating grouper fries
  • Method for cultivating seawater chlorella in cement pond and method for cultivating grouper fries
  • Method for cultivating seawater chlorella in cement pond and method for cultivating grouper fries

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Experimental program
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Effect test

Embodiment 1

[0075] Such as figure 1 The shown cement pond cultivates the method for seawater chlorella, comprises the following steps:

[0076] Set up an outdoor cement pool for algae cultivation: air stones need to be installed, the incoming water needs to be filtered, and the algae cultivation pool has sufficient light;

[0077] Introduction and expansion: purchase pure seawater chlorella, cultivate it indoors in a 500ml conical flask, when the density reaches 10 4 -10 6 Carry out expansion training per hour, expand to a 10L large-mouth glass tank, when the density reaches 10 4 -10 6 per hour, expand to a half-ton breeding tank, when the density reaches 10 4 -10 6 Individual / ml, productive cultivation can be carried out in cement ponds.

[0078] Productive cultivation: when the density of expanded Chlorella in a half-ton bucket reaches 10 4 -10 6 per ml, add algae water into the outdoor algae cultivation cement pool, the height of water in the pool is 10cm, add fertilizer, the f...

Embodiment 2

[0091] The method for cultivating seawater chlorella in cement ponds, the specific process is as follows:

[0092] (1) Set up an outdoor algae cultivation pond: the algae cultivation pond is located in a location with sufficient outdoor light and good ventilation conditions. The daily light duration is 10-12 hours, and the light intensity is 8000-12000 lux. The size of the outdoor algae cultivation pond is 24m 2 (4 meters × 6 meters), a rectangular cement pool with a depth of 1.3, each pool is provided with 4 rows of aerated stones, and each row is hung with 5 air stones. Hang a 250-mesh gauze filter bag at the water inlet of the algae cultivation pond.

[0093] (2) Introduction and expansion: 500ml of pure seawater chlorella was purchased and cultured in two 500ml triangular conical flasks indoors. Put an air stone in each bottle and inflate about 100 bubbles per minute. , after 1 day of culture, when the density reaches about 10 5 Carry out expansion cultivation per hour,...

Embodiment 3

[0100] A method for cultivating grouper fry, such as figure 2 shown, including the following steps:

[0101] The first stage: seedling cultivation stage

[0102] (1) Set up an indoor nursery pool and pre-treat the required seawater;

[0103] (2) Outdoor algae cultivation pool is set, and outdoor algae cultivation pool is set according to the ratio of algae cultivation pool: seedling pool=1:2, and the size of the algae cultivation pool is consistent with the indoor nursery pool;

[0104] (3) Cultivate seawater chlorella according to the method of any of the above-mentioned embodiments.

[0105] (4) Set the egg laying density, the egg laying density is 12000-15000 grouper fertilized eggs / m 3 seawater;

[0106] (5) Control the balance of the algae water system in the nursery pond, and regulate the balance of the entire nursery pond water system by adding chlorella and bacteria cultivated in the outdoor pond;

[0107] (6) Feeding of biological bait

[0108] Process: From th...

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Abstract

The invention discloses a method for cultivating seawater chlorella in a cement pond and a method for cultivating grouper fries. The method comprises the following steps of setting an outdoor algae culture cement pond; introduction and propagation, specifically, introducing seawater chlorella, and performing propagation until the density is 104-106 / ml to obtain algae water; productive culture, specifically, adding the algae water into the outdoor algae culture cement pond, adding a fertilizer, and culturing for 1-3 days; adding the seawater containing the fertilizer into the cement pond twice every day until the whole pond is filled with the seawater; pond transferring, specifically, increasing the cultivation amount; and the grouper fry cultivation comprises a fry cultivation stage and a fry marking stage. According to the method, the seawater chlorella can be rapidly and efficiently cultivated in a large density mode, and the survival rate of grouper fries is increased.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for cultivating seawater chlorella in a cement pond and a method for cultivating grouper fry. Background technique [0002] As a large category of bait, plankton bait has the advantages of various types, no pollution to water quality and environment, fast multiplication speed, balanced and rich nutrition, and strong palatability compared with compound feed. Plankton bait is mainly used in the nursery stage of aquatic animals, and is one of the key factors in the seedling cultivation stage of aquaculture objects. It is related to the growth status of aquaculture animals and the economic benefits of the entire aquaculture industry. Biological bait is mainly used in the seedling stage of aquatic animals. At present, the types of biological bait commonly used at home and abroad include: plant-based bait, including unicellular algae (Chlorella, Nannochloropsis, Phaeodacty...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/12A01K61/10C05G1/00C12R1/89
CPCC12N1/12A01K61/10C05B1/02C05B7/00C05C1/00C05C9/00C05F11/00Y02A40/81Y02A40/80
Inventor 孙佩银冯春元王火洋王庆赵会宏高延飞
Owner 广东海元农业科技有限公司
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