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Method for breeding perinereis aibuhitensis by using shrimp pond

A double-toothed clamworm and shrimp pond technology, which can be used in applications, fish farming, climate change adaptation, etc., can solve the problem of the small number of clamworm seedlings, and achieve the effect of increasing the hatching rate and raising the survival rate

Inactive Publication Date: 2021-01-22
YANCHENG INST OF TECH
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  • Application Information

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Problems solved by technology

[0004] Some prawn farmers often put a certain amount of Nereis worm bodies in the shrimp pond, use its natural oviposition and fertilization, and fertilized eggs hatch to develop into Nereis larvae. Although this method is very simple, whether it is Nereis ova or The planktonic larvae of nereis are easily preyed by other zooplankton in the water body, such as copepods, and the number of nereist larvae that can finally breed is very small

Method used

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Embodiment

[0019] 1. Construction of nursery facilities: On April 20, 2018, the shrimp pond was disinfected with fertilizer and water. On April 27, the pool water showed obvious algae green. On April 29, nursery facilities were built in the shrimp pond. The water surface of the shrimp pond was 3000m 2 , A total of 3 seedling cages with a size of 1m×1m×1m and corresponding aeration systems and water intake systems were built.

[0020] 2. Breeding of clam worm seedlings: on April 30, 100, 110, and 120 clam worm bodies were placed in 3 seedling cages respectively, female individuals: male individuals were 9:1, and the micropores of the aerator were started. Oxygenation was added. On May 1st, all the worm bodies were laid eggs and ejaculated, and the worm bodies were fished out, and the water pump was started to continuously feed water into the seedling cages. The water inlet was placed in the middle of the bottom of the seedling cages. The density of fertilized eggs in the 3 seedling cages ...

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Abstract

The invention discloses a method for breeding perinereis aibuhitensis by using a shrimp pond. The method comprises the following steps of building a breeding facility, breeding perinereis aibuhitensisseedlings, and releasing the perinereis aibuhitensis seedlings. A breeding net cage is used for isolating nereis eggs and planktonic larvae from harmful organisms, so that the nereis eggs and the planktonic larvae are prevented from being predatory; and fertilized eggs are in a suspended state through an oxygenation system and a water inlet system, sufficient dissolved oxygen is provided, the hatching rate of the fertilized eggs is increased, meanwhile, the water inlet system can bring rich unicellular algae bait to the planktonic larvae, and the breeding survival rate of nereis seedlings isincreased.

Description

technical field [0001] The invention relates to a method for cultivating clam worm seedlings by utilizing a shrimp pond, and belongs to the technical field of aquatic seedling raising. Background technique [0002] Perinereis aibuhitensis belongs to the Nereistae family and the genus Perinereis in zoological classification. It is one of the more than 80 species of clamworms in my country with larger individuals and faster growth. It is widely used in health care, aquaculture and fishing, and has a very large demand in domestic and foreign markets. It has become the most important species of artificial breeding and export earnings in my country. [0003] The double-toothed silkworm camp lives in the bottom of the ocean, commonly known as sea earthworms, and has a strong ability to utilize organic matter in the bottom mud, and is known as the "pond bottom cleaner". In addition, Nereis bidentata is rich in nutrition, has a strong food-attracting effect, and is known as the "uni...

Claims

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Application Information

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IPC IPC(8): A01K61/40A01K61/60A01K63/00A01K63/04
CPCA01K63/003A01K63/006A01K63/042A01K63/045A01K63/047A01K61/40A01K61/60Y02A40/81
Inventor 吕富朱婷婷聂庆
Owner YANCHENG INST OF TECH
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