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Method for killing polydora ciliata in cultchless oysters

A technology for single oysters and dung beetles, which is applied to the field of killing scalloped oysters in single oysters, can solve the problems of reducing the quality and value of shellfish, endangering the development of shellfish aquaculture, secondary abscesses and the like

Inactive Publication Date: 2021-08-20
GUANGXI ACADEMY OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The parasitism of the female worm greatly affects the host's respiration and feeding, reduces the host's vitality, hinders the host's growth and development, makes the growth of the diseased shell slow, and even directly penetrates into the host's soft body, causing organ inflammation and bacterial secondary abscess , and produce a special odor, which greatly reduces the quality and value of shellfish, and leads to direct death of shellfish in serious cases, and is one of the main parasites that seriously endanger the development of shellfish farming.
Due to its wide distribution and strong reproductive growth ability, no effective control measures have been found so far

Method used

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  • Method for killing polydora ciliata in cultchless oysters
  • Method for killing polydora ciliata in cultchless oysters
  • Method for killing polydora ciliata in cultchless oysters

Examples

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Embodiment 1

[0022] A kind of method of killing clam shellfish in individual oyster, it comprises the following steps:

[0023] (1) Confirmation of single diseased oyster shells: use oyster knives to open the shells of individual oysters in the sea culture area to confirm the infection of T. chinensis, and make statistics to determine the parasitic degree and quantity ratio of T. spp. in diseased shells;

[0024] (2) Collection and purification of individual diseased oyster shells: Collect single diseased oyster shells uniformly and transport them back, remove the organisms and dirt attached to the shell surface, and then clean them with sand-filtered seawater;

[0025] (3) Soaking treatment of individual diseased oyster shells: place the individual diseased oyster shells treated in step (2) in a clean pool, then add fresh water and tea seed cake for soaking, the quality of the tea seed cake is The concentration is 90mg / L, the soaking time is 36h, and the whole soaking process needs to be ...

Embodiment 2

[0028] A kind of method of killing clam shellfish in individual oyster, it comprises the following steps:

[0029] (1) Confirmation of single diseased oyster shells: use oyster knives to open the shells of individual oysters in the sea culture area to confirm the infection of T. chinensis, and make statistics to determine the parasitic degree and quantity ratio of T. spp. in diseased shells;

[0030] (2) Collection and purification of individual diseased oyster shells: Collect single diseased oyster shells uniformly and transport them back, remove the organisms and dirt attached to the shell surface, and then clean them with sand-filtered seawater;

[0031] (3) Soaking treatment of individual diseased oyster shells: place the individual diseased oyster shells treated in step (2) in a clean pool, then add fresh water and tea seed cake for soaking, the quality of the tea seed cake is The concentration is 60mg / L, the soaking time is 24h, and the whole soaking process needs to be ...

Embodiment 3

[0034] A kind of method of killing clam shellfish in individual oyster, it comprises the following steps:

[0035] (1) Confirmation of single diseased oyster shells: use oyster knives to open the shells of individual oysters in the sea culture area to confirm the infection of T. chinensis, and make statistics to determine the parasitic degree and quantity ratio of T. spp. in diseased shells;

[0036] (2) Collection and purification of individual diseased oyster shells: Collect single diseased oyster shells uniformly and transport them back, remove the organisms and dirt attached to the shell surface, and then clean them with sand-filtered seawater;

[0037] (3) Soaking treatment of individual diseased oyster shells: place the individual diseased oyster shells treated in step (2) in a clean pool, then add fresh water and tea seed cake for soaking, the quality of the tea seed cake is The concentration is 120mg / L, the soaking time is 42h, and the whole soaking process needs to be...

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Abstract

The invention discloses a method for killing polydora ciliata in cultchless oysters. The method comprises the following steps of: firstly, confirming the infection of the polydora ciliata, and counting and determining the parasitism degree and the quantity proportion of the polydora ciliata in sick cultchless oysters; then unifiedly collecting the sick cultchless oysters and carrying back, removing organisms and dirt attached to the surfaces of the shells of the cultchless oysters, and cleaning the sick cultchless oysters with sand-filtered seawater; putting the treated sick cultchless oysters into a clean pool, then adding fresh water and tea seed cakes for soaking, and slightly inflating in the whole soaking process; after soaking treatment, immediately fishing out the sick cultchless oysters, flushing residual drugs on the surfaces of the shells with clean seawater, then loading the shells with net bags or cages and putting the shells back to the sea for continuous hanging culture, and checking the polydora ciliata infection condition of the sick cultchless oysters again two weeks later. According to the method, the parasitized polydora ciliata in the cultchless oysters can be effectively and rapidly killed, the death rate of the sick cultchless oysters in the treatment process is low, and the recovery effect of the treated cultchless oysters is good.

Description

technical field [0001] The invention belongs to the technology for killing the scalloped beetle in live oysters, and in particular relates to a method for killing the scalloped beetle in single oysters. Background technique [0002] The chisel beetle belongs to the phylum Annelida, the class Polychaeta, the family Spionidae, and the genus Polydora. It is widely distributed in Europe, America, Asia, New Zealand and other places. It can secrete acidic substances that corrode shells, so as to dig holes into the shells of cultured shellfish such as scallops, oysters, abalone, clams, mussels, etc., making the shells Deformation, dirt on the surface or inside the shell, and dark brown scabs on the inner surface of the shell near the center, commonly known as "black shell" disease or "black heart liver" disease. The parasitism of the female worm greatly affects the host's respiration and feeding, reduces the host's vitality, hinders the host's growth and development, makes the gro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/54A01K61/13
CPCA01K61/54A01K61/13Y02A40/81
Inventor 官俊良覃忠波彭金霞张兴志张立韦嫔媛何苹萍石军浩
Owner GUANGXI ACADEMY OF FISHERY SCI