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Artificial spawning induction and hatching method for tylorrhynchus heterochaetus

A technology of artificially induced spawning and wart-kissed clamworm, applied in climate change adaptation, fish farming, application, etc., can solve the problems of low spawning, long spawning time, time-consuming and labor-intensive, etc., to protect germplasm resources, The effect of shortening the spawning time and increasing the amount of eggs laid

Inactive Publication Date: 2020-04-17
福建省淡水水产研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some scholars have tried to carry out the artificial incubation and seedling cultivation of Lureris verrucae, it is still simple to put the wild parent insects together to allow them to naturally lay eggs and fertilize them. The disadvantage of this method is that the laying time is long and the laying time The amount of eggs is small, time-consuming and labor-intensive, and cannot be used in large quantities for production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] On August 14, 2019, at the nereis breeding base of Fujian Yangze Marine Biotechnology Co., Ltd., the parent nereis that was purchased from the estuary of the Minjiang River was artificially induced and bred. Specifically include the following steps:

[0025] (1) Preparations before induction of labor: On August 6, the seawater was pumped into the sedimentation tank, and after 2 days of sedimentation, it was sterilized by sand filtration and ultraviolet rays and entered into the seawater aeration tank for standby. At the same time, the river water is pumped into the sedimentation tank for 3 days, filtered by sand filter and activated carbon, and then used 15 / m 3 Disinfected with quicklime, microporous aeration, the measured dissolved oxygen in the water is 8mg / L, pH is 7.8, and the temperature of sea and fresh water is consistent at 28±0.5°C.

[0026] (2) Selection of parents: The parents of Lureis cerevisiae selected this time are natural wild species, with full and th...

Embodiment 2

[0031] On August 31, 2019, at the clam worm breeding base of Fujian Yangze Marine Biotechnology Co., Ltd., artificially induced breeding was performed on the parent clam worm purchased from Fu'an, Ningde. Specifically include the following steps:

[0032] (1) Preparations before oxytocin: On August 20, the seawater was pumped into the sedimentation tank, and after 5 days of sedimentation, it was sterilized by sand filtration and ultraviolet rays and entered into the seawater aeration tank for standby. At the same time, the river water is pumped into the sedimentation tank for 4 days, filtered by sand filter and activated carbon, and then used 10 / m 3 Disinfected with quicklime, microporous aeration, the measured dissolved oxygen in the water is 10mg / L, the pH is 7.5, and the temperature of the sea and fresh water is consistent at 27.5±0.5°C.

[0033](2) Selection of parents: The parents of Lureis cerevisiae selected this time are natural wild species, with full and thick body,...

Embodiment 3

[0038] On September 13, 2019, at the nereis breeding base of Fujian Yangze Marine Biotechnology Co., Ltd., artificially induced spawning and breeding were performed on the parent nereis purchased from Wenzhou, Zhejiang. Specifically include the following steps:

[0039] (1) Preparations before oxytocin: On September 3, the seawater was pumped into the sedimentation tank, and after 2 days of sedimentation, it was sterilized by sand filtration and ultraviolet rays and entered into the seawater aeration tank for standby. At the same time, the river water is pumped into the sedimentation tank for 3 days, filtered by sand filter and activated carbon, and then used 10 / m 3 Disinfected with quicklime, microporous aeration, measured dissolved oxygen in the water is 9mg / L, pH is 7.7, and the temperature of sea and fresh water is consistent at 28.5±0.3°C.

[0040] (2) Selection of parents: The parents of Lureis cerevisiae selected this time are natural wild species, with full and thick ...

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Abstract

The invention relates to an artificial spawning induction method and hatching method for tylorrhynchus heterochaetus. The method includes the following steps: preparation before spawning induction, selection of parents, artificial insemination, egg washing, and artificial hatching. The method makes full use of the reproductive biological characteristics of the tylorrhynchus heterochaetus, solves the technologies of tylorrhynchus heterochaetus reproductive water environmental conditions, selection of seed insects, male and female parent proportion, insemination time and hatching by artificiallysimulating water area environmental conditions of the tylorrhynchus heterochaetus during natural reproduction, artificially assisting spawning induction and innovating and optimizing a hatching method, shortens the spawning time, improves the spawning amount, insemination rate and hatching rate, and realizes the large-scale artificial propagation of the tylorrhynchus heterochaetus, so that the method lays the foundation for protecting tylorrhynchus heterochaetus germplasm resources, and carrying out reproduction and releasing and artificial breeding, and has important significance for intensive development of tylorrhynchus heterochaetus industry in China.

Description

technical field [0001] The invention belongs to the field of breeding of aquatic seedlings, and relates to an artificial breeding technology of clam worms, in particular to a method for artificially inducing labor and hatching of clam worms. Background technique [0002] Wart-nose Nereis ( Tylorrhynchus heterochaetus ), belonging to the phylum Annelida, class Polychaeta, order Errantia, subfamily Nereidinae, and the genus Nereis ( Tylorrhynchus ), commonly known as grass insects and lizards, usually inhabit the shallows along the coast or in estuaries, and are mainly distributed in Zhejiang, Fujian, Guangdong and Guangxi. Verrucous snout silkworm meat is fresh and tender, rich in nutrition, high in protein, high in fat, comprehensive in amino acid composition, rich in essential amino acid content, etc. Although it looks ugly, it is called "the Cordyceps sinensis on the river". Wart-kissed sandworm food is also used as medicine, and has the effect of reducing swelling and ...

Claims

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Application Information

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IPC IPC(8): A01K61/40A01K61/17
CPCA01K61/17A01K61/40Y02A40/81
Inventor 王茂元周洪磊黄洪贵陈度煌
Owner 福建省淡水水产研究所
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