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Method for cultivating Brachionus plicatilis

A technology of Brachiocephalus rotifers and a culture method, which is applied in the field of cultivation of Brachiocephalus folds, can solve the problem that it is difficult to achieve sufficient supply of monocytogenes and photosynthetic bacteria, the density of rotifers is difficult to reach 200/mL, and it is difficult to cast rotifers. Feeding yeast water quality is difficult to control and other problems, to achieve long-term fertility, reduce production costs, and improve economic benefits

Inactive Publication Date: 2013-12-04
GUANGDONG OCEAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although bacteria such as chlorella, flat algae and photosynthetic bacteria cultivate rotifers with comprehensive nutrition and good bait effect, but due to the limitation of the breeding sites of unicellular algae and photosynthetic bacteria, when carrying out large-scale rotifer cultivation, The amount of unicellular algae and photosynthetic bacteria is difficult to achieve a sufficient supply; secondly, due to the large food intake of rotifers, the rotifers are cultivated with unicellular algae and photosynthetic bacteria, and the density of rotifers is generally difficult to reach more than 200 / mL
Therefore, in actual production, it is necessary to carry out large-scale high-density rotifer cultivation, and yeast is often used as the bait for rotifer cultivation, but the rotifers cultivated with yeast lack the unsaturated fatty acids for fish growth, and the rotifers must be fed after a short period of time. Lipid nutrition such as monocellular algae or squid liver oil for a long time is strengthened, and the water quality of feeding yeast is difficult to control when cultivating in indoor cement tanks, and the cost of cultivation is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1 Adopt the Brachionus rugosa culture method of the present invention, cultivate the Brachionus rugosa according to the following steps:

[0015] (1) Cultivation facilities: It is convenient to choose fresh water sources, with an area of ​​667.7m 2 , The abandoned old pond with a depth of 1.2m was used as a cultivation pond. Before the cultivation of Brachionus rugosa, the cultivation pond was disinfected with 150kg / mu of quicklime, and after being exposed to the sun for a week, the water was filtered with 100-mesh sieve to the depth of the cultivation pond. 0.85m, install two water wheel aerators with a power of 0.75kv at the opposite corner of the cultivation pond;

[0016] (2) Basic bait: Use small trash fish as the basic bait for cultivating Brachionus rugosa, the amount of small trash fish is 188kg / mu, put the small trash fish in 15kg / bag, put them in 80-mesh mesh bags, and then tie the net tightly At the mouth of the bag, evenly hang the net bag with sm...

Embodiment 2

[0023] Example 2 Adopt the Brachionus rugosa culture method of the present invention, cultivate the Brachionus rugosa according to the following steps:

[0024] (1) Cultivation facilities: It is convenient to choose fresh water sources, with an area of ​​826m 2 , The abandoned old pond with a depth of 1.1m is used as a cultivation pond. Before the cultivation of Brachionus rugosa, the cultivation pond is disinfected with 5kg / mu of bleach, and after being exposed to the sun for a week, the water is filtered into the cultivation pond with 100 mesh sieves. The water depth is 1.0m, and two waterwheel aerators with a power of 0.75kv are installed at the opposite corners of the cultivation pond;

[0025] (2) Basic bait: Use small trash fish as the basic bait for cultivating Brachionus rugosa, the amount of small trash fish is 200kg / mu, put the small trash fish in 17kg / bag, put them in 80-mesh mesh bags, and then tie the net tightly At the mouth of the bag, evenly hang the net ba...

Embodiment 3

[0032] Example 3 Adopt the Brachionus rugosa culture method of the present invention, cultivate the Brachionus rugosa according to the following steps:

[0033] (1) Cultivation facilities: It is convenient to choose fresh water sources, with an area of ​​1000m 2, The aging old pond with a depth of 1.0m is used as the cultivation pond. Before the cultivation of Brachionus rugosa, the cultivation pond is disinfected with 150kg / mu of quicklime, and after being exposed to the sun for a week, filter the water into the cultivation pond with 100 mesh sieves The water depth is 0.9m, and two waterwheel aerators with a power of 0.75kv are installed at the opposite corners of the cultivation pond;

[0034] (2) Basic bait: Use small trash fish as the basic bait for cultivating Brachionus rugosa, the amount of small trash fish is 190kg / mu, put the small trash fish in 20kg / bag, put them in 80-mesh mesh bags, and then tie the net tightly At the mouth of the bag, evenly hang the net bag w...

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PUM

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Abstract

The invention discloses a method for cultivating Brachionus plicatilis, belonging to the technical field of aquaculture. The method for cultivating the Brachionus plicatilis by taking a waste or old pool as a cultivation pool and small trash fishes as basic bait materials comprises the following specific steps of: feeding water to the cultivation pool subjected to disinfection and exposure treatments, mounting an aerator, suspending the basic bait materials contained in a net bag according to a constant amount in water of the cultivation pool, cultivating for 13-18 days during daily management by combining with the aerator, beginning collection the Brachionus plicatilis by a Brachionus plicatilis collection bag when the density of the Brachionus plicatilis is up to 250 pieces / mL, and adding the suspension amount of the trash fishes according to a breeding speed and the density of the Brachionus plicatilis. The method for cultivating the Brachionus plicatilis, disclosed by the invention has the advantages of simpleness, convenience, large density of cultivated Brachionus plicatilis, comprehensive nutrition, long fertility in the water without frequently bait feeding, and capabilities of largely reducing production cost and improving economic benefit.

Description

technical field [0001] The invention relates to a method for cultivating high-quality biological bait in the seedling cultivation process of marine economic animals, in particular to a method for cultivating Brachionus rugosa rotifers, and belongs to the technical field of aquaculture. Background technique [0002] Brachionus plicatilis belongs to the class Rotifera, Monocystera, Swimming suborder, Brachionidae. It has wide-temperature and wide-salinity, strong adaptability to the environment, fast growth and reproduction speed, and suitable size ( 100μm ~ 300μm) and rich in nutrients, it has become an excellent biological bait for seedling cultivation of important marine economic animals such as fish, shrimp, crab and jellyfish. The seedlings of marine fish are generally small when hatched. Except for a few species, their body length is about 2-7mm, and their caliber is smaller when they open their mouths to feed. The bait is the key to the success or failure of fish artif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 罗杰刘楚吾曹伏君杜涛
Owner GUANGDONG OCEAN UNIVERSITY
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