Method for three-dimensional and artificial seedlings cultivation of perinereis aibuhitensis

A double-toothed clamworm and artificial technology, which is applied in animal husbandry and other fields, can solve the problems of low breeding rate, high cost, and low seedling yield, and achieve the effects of improving survival rate, convenient operation, and uniform spraying

Inactive Publication Date: 2011-06-29
YANCHENG INST OF TECH
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AI Technical Summary

Problems solved by technology

The existing seedling breeding mode has a low breeding rate from fertilized eggs to se

Method used

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Embodiment Construction

[0016] The present invention is described in further detail below in conjunction with specific embodiment:

[0017] 1. Preliminary preparations for seedling cultivation: including cleaning and disinfection of seedling cultivation facilities, water precipitation, filtration, disinfection and salinity adjustment for seedling cultivation, single-cell algae cultivation, aeration pump and water pump debugging, etc.

[0018] 2. Fishing and disinfection of Nereis worm: During the peak sexual maturity of Nereis bidentata, a larger individual Nereis worm was caught with a net, placed in sterilized seawater containing 200ppm of formaldehyde, and allowed to swim freely for 2 to 3 minutes. , Then scoop it up and put it in sterilized seawater to wash away the residual formaldehyde.

[0019] 3. Oviposition, hatching, and planktonic larvae cultivation: a. Put the sterilized dioecious clamworms into the spawning pool at a ratio of 3:1, with a density of 3 to 5 worms / L, and inflate them in an ...

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Abstract

The invention discloses a method for the three-dimensional and artificial seedlings cultivation of the perinereis aibuhitensis, which mainly comprises the steps of: (1) fishing and disinfecting the heteronereis; (2) laying eggs, hatching and cultivating the planktonic larva; (3) three-dimensionally cultivating the benthic larvae; and (4) seedling emerging. The key measures comprise the steps of: putting four setiger intermediate-later stage nectochaete into a polyethylene water tank for the three-dimensional cultivation, cultivating by flowing water, and properly mixing the single-cell algae, the EM (effective microorganisms) bacterium with various artificial baits. After the measures are used, the density of the larvae is reduced, the mutual massacre among the individuals is reduced, the nutritional requirement of each-stage larva and the good and stable water quality environment are guaranteed, the survival rate of the larva is greatly improved, the breeding rate from the fertilized ovum to the sand silkworm seedling with the length of 1cm reaches at 42.3%, and the seedling yield per unit area is improved at 11.4*104 numbers/m<2>, so that the survival rate, the breeding rate and the seedling yield per unit area are greatly improved compared with the existing seedlings cultivation mode. The method is convenient to operate, can prevent the seedlings from being damaged caused by sand flushing and seedling driving, and is good for the long-distance transporting and the planting of the seedlings.

Description

technical field [0001] The invention relates to a method for three-dimensional artificial seedling cultivation of clam worms, belonging to the technical field of aquatic seed breeding. Background technique [0002] Perinereis aibuhitensis belongs to Nereididae (Nereididae) in zoological classification, Perinereis (Perinereis), commonly known as sea centipede, sea leech, etc., is mainly distributed in my country and is one of more than 80 species in China. The clamworm has the largest amount of biological resources. It is distributed in the middle and high tide beaches from south to north in my country's coastal areas. It is the main representative and dominant species of polychaetes in the intertidal zone, and it is also the most important source of artificial breeding and export earnings in my country. type. The clam worm is rich in nutrition, the crude protein content in the dry product is more than 50%, the highest can reach more than 65%, and it is rich in polyunsaturated...

Claims

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Application Information

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IPC IPC(8): A01K67/033
Inventor 吕富黄金田吕林兰赵卫红於叶兵王爱民朱世明崔恒庆
Owner YANCHENG INST OF TECH
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